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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [MB91460_Softune/] [SRC/] [Start91460.asm] - Rev 615
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/* THIS SAMPLE CODE IS PROVIDED AS IS AND IS SUBJECT TO ALTERATIONS. FUJITSU *//* MICROELECTRONICS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR *//* ELIGIBILITY FOR ANY PURPOSES. *//* (C) 2007,2008 Fujitsu Microelectronics Europe GmbH */;=========================================================================================; 1 Contents;=========================================================================================; 1 Contents; 2 Disclaimer;; 3 History;; 4 Settings; 4.1 Controller device; 4.2 Boot / flash security; 4.3 Stack type and stack size; 4.4 Copy code from flash to I-RAM; 4.5 C++ start-up; 4.6 Low-level library interface; 4.7 Clock Configuration; 4.7.1 Clock selection; 4.7.2 Select Clock Modulator; 4.8 External bus interface; 4.8.1 Select chipselect; 4.8.2 Set memory addressing for chipselects; 4.8.3 Configure chipselect area; 4.8.4 Set wait cycles for chipselects; 4.8.5 Configure chipselects SDRAM memory only; 4.8.6 Referesh control register RCR; 4.8.7 Terminal and timing control register; 4.8.8 Enable / disable I-cache; 4.8.9 Enable CACHE for chipselect; 4.8.10 Select external bus mode (data lines); 4.8.11 Select external bus mode (address lines); 4.8.12 Select external bus mode (control signals);; 5 Definitions of Configurations;; 6 Section and data declaration; 6.1 Define stack size; 6.2 Define sections;; 7. S T A R T; 7.1 Initialise stack pointer and table base register; 7.2 Check for CSV reset and set CSV; 7.3 Check clock condition; 7.4 Restore default settings after reset; 7.4.1 Disable clock modulator; 7.4.2 Check if running on sub clock, change to main clock; 7.4.3 Disable sub clock; 7.4.4 Check if running on PLL, gear down PLL; 7.4.5 Disable PLL; 7.4.6 Set to main clock; 7.5 Set memory controller; 7.6 Clock startup; 7.6.1 Set Voltage Regulator Settings; 7.6.2 Power on clock modulator - clock modulator part I; 7.6.3 Set CLKR register w/o clock mode; 7.6.4 Start PLLs; 7.6.5 Wait for PLL oscillation stabilisation; 7.6.6 Set clocks; 7.6.6.1 Set CPU and peripheral clock; 7.6.6.2 Set external bus interface clock; 7.6.6.3 Set CAN clock prescaler; 7.6.6.4 Switch main clock mode; 7.6.6.5 Switch sub clock mode; 7.6.6.6 Switch to PLL mode; 7.6.7 Enable frequncy modulation - clock modulator part II; 7.7 Set BusInterface; 7.7.1 Disable all CS; 7.7.2 Clear TCR register; 7.7.3 Set CS0; 7.7.4 Set CS1; 7.7.5 Set CS2; 7.7.6 Set CS3; 7.7.7 Set CS4; 7.7.8 Set CS5; 7.7.9 Set CS6; 7.7.10 Set CS7; 7.7.11 Set special SDRAM config register; 7.7.12 set Port function register; 7.7.13 Set TCR register; 7.7.14 Enable cache for selected CS; 7.7.15 Set SDRAM referesh control register; 7.7.16 Enable used CS; 7.7.17 I-cache on/off; 7.7.18 Set port function register to general as I/O-port; 7.8 Copy code from flash to I-RAM; 7.9 Fill stacks; 7.10 Clear data; 7.11 Copy Init section from ROM to RAM; 7.12 C library initialization; 7.13 Call C++ constructors; 7.14 Call main routine; 7.15 Return from main function;;=========================================================================================; 2 Disclaimer;=========================================================================================; Fujitsu Microelectronics Europe GmbH; http://emea.fujitsu.com/microelectronics;; The following software is for demonstration purposes only. It is not fully; tested, nor validated in order to fullfill its task under all circumstances.; Therefore, this software or any part of it must only be used in an evaluation; laboratory environment.; This software is subject to the rules of our standard DISCLAIMER, that is; delivered with our SW-tools on the Fujitsu Microcontrollers CD/DVD (V3.4 or; higher "\START.HTM") or on our Internet Pages:; http://www.fme.gsdc.de/gsdc.htm; http://emea.fujitsu.com/microelectronics;;=========================================================================================; 3 History;=========================================================================================;;=========================================================================================; MB914xx (FR60 CORE ONLY) Series C Compiler's;; Startup file for memory and basic controller initialisation;=========================================================================================;History:;; 2005-04-18 V1.0 UMa Release first version; 2005-06-17 V1.1 UMa Added bus interface, modified c++ startup; 2005-06-28 V1.2 UMa minor changes; 2005-07-27 V1.3 UMa default values changed; 2005-10-04 V1.4 UMa changed code 'Call main Routine'; Added secutiy section for MB91F467D; Added Flash Access Read Timing setting section;; 2005-10-04 V1.5 UMa Added Flash Controller Section; 2005-10-28 V1.6 UMa Check for CSV reset; 2005-11.16 V1.7 UMa Monitor Debugger support added: Copy of intvect Table; Ext. Int 0 as abort function; Changed PLL-Startup, Reset HWWD added; 2005-11-16 V1.7 UMa Examples for MUL_G changed; 2006-02-14 V1.8 UMa mb91464a added; Settings for Clock Spervisor added; Name of Section SECURITY changed to SECURITY_VECTORS; Example values for gear-up changed; 2006-03-17 V1.9 UMa Changed Startup for Monitor Debugger; 2006-04-24 v2.0 UMa Added MB91465K and MB91469G; 2006-05-03 v2.1 UMa Added MB91461R; removed MB91V460A; Added settings for the external bus-interface; 2006-07-28 v2.2 UMa Added I-RAM copy function (ROM -> IRAM); Added default settings for FLASH Access Read Timing; Settings; Changed default settings for FLASH cache configuration; Register; Changed check for clock startup; 2006-08-16 v2.3 MVo Corrected Boot Security Sector Addresses for MB91469G; 2006-10-06 v2.4 UMa Added new devices; Corrected typo in I_RAM to flash copy function; Changed default settings for flash cache configuration; Changed comments for SDRAM bus interface configuration; Changed comments and default setting of CAN Prescaler; Added Stack filler; Added Settings for REGSEL Register; 2007-02-13 v2.5 UMa Introduction of default configurations; Changed I_RAM to flash copy function;;;=========================================================================================; 4 Settings;=========================================================================================;; CHECK ALL OPTIONS WHETHER THEY FIT TO THE APPLICATION;;; Configure this startup file in the "Settings" section. Search for; comments with leading "; <<<". This points to the items to be set.;=========================================================================================;#set OFF 0#set ON 1#set DEFAULT 2#set LOW_PRIOR 31;;=========================================================================================; 4.1 Controller Device;=========================================================================================#set MB91464A 2 ; MB91460 series;#set MB91467B 10 ; MB91460 series;#set MB91467C 11 ; MB91460 series;#set MB91467D 4 ; MB91460 series;#set MB91469G 6 ; MB91460 series;#set MB91465K 3 ; MB91460 series;#set MB91463N 8 ; MB91460 series;#set MB91461R 1 ; MB91460 series#set MB91467R 5 ; MB91460 series;#set MB91465X 9 ; MB91460 series;#set others 7 ; MB91460 series;;;#set DEVICE MB91467D ; <<< select device;;=========================================================================================; 4.2 Boot / Flash Security;=========================================================================================;#set BOOT_FLASH_SEC OFF ; <<< BOOT and Flash Security Vector;; The flash devices have two flash and two boot security vectors. It is important to set; the four vectors correctly. Otherwise it might be possible, that the flash device is; not accessible any more via the bootrom. Please read carefully the hardware manual.;; OFF: The security feature is switch off. The section SECURITY_VECTORS is reserved and; the vectors are set.; ON: IMPORTANT! The security vectors are not set. But the section SECURITY_VECTORS; is reserved.;; Note: This feature is not supported by every device. Please check the data sheet. This; feature is not available on MB91461R.;;=========================================================================================; 4.3 Stack Type and Stack Size;=========================================================================================;#set USRSTACK 0 ; user stack: for main program#set SYSSTACK 1 ; system stack: for main program and; ; interrupts;;#set STACKUSE SYSSTACK ; <<< set active stack;#set STACK_RESERVE ON ; <<< reserve stack area in; ; this module#set STACK_SYS_SIZE 1000 ; <<< byte size of System stack#set STACK_USR_SIZE 4 ; <<< byte size of User stack;#set STACK_FILL ON ; <<< fills the stack area with pattern#set STACK_PATTERN 0x55AA55AA ; <<< the pattern to write to stack;; - If the active stack is set to SYSSTACK, it is used for main program and interrupts.; In this case, the user stack could be set to a dummy size. If the active stack is; set to user stack, it is used for the main program but the system stack is; automatically activated, if an interrupt is serviced. Both stack areas must have a; reasonable size.; - If STACK_RESERVE is ON, the sections USTACK and SSTACK are reserved in this module.; Otherwise, they have to be reserved in other modules. If STACK_RESERVE is OFF, the; size definitions STACK_SYS_SIZE and STACK_USR_SIZE have no meaning.; - Even if they are reverved in other modules, they are still initialised in this; start-up file.;; Note: Several library functions require quite a big stack (due to ANSI).; Check the stack information files (*.stk) in the LIB\911 directory.;;=========================================================================================; 4.4 Copy code from Flash to I-RAM;=========================================================================================;#set I_RAM OFF ; <<< select if code in section IRAM; should be copied;; If this option is activated code located in the section IRAM is copied during startup; from ROM to the instruction-RAM. The code is linked for the instruction-RAM.;;=========================================================================================; 4.5 Low-Level Library Interface;=========================================================================================;#set CLIBINIT OFF ; <<< select ext. libray usage;; This option has only to be set, if stream-IO/standard-IO function of the C-libraray; have to be used (printf(), fopen()...). This also requires low-level functions to be; defined by the application software.; For other library functions like (e.g. sprintf()) all this is not necessary. However,; several functions consume a large amount of stack.;;=========================================================================================; 4.6 C++ start-up;=========================================================================================;#set CPLUSPLUS OFF ; <<< activate if c++ files are used;; In the C++ specifications, when external or static objects are used, a constructor; must be called followed by the main function. Because four-byte pointers to the main; function are stored in the EXT_CTOR_DTOR section, call a constructor sequentially from; the lower address of the four addresses in that section. If using C++ sources,; activate this function to create the section EXT_CTOR_DTOR.;;=========================================================================================; 4.7 Clock Configuration;=========================================================================================;=========================================================================================; 4.7.1 Clock Selection;=========================================================================================;; No clock settings#set NO_CLOCK 0x01;; Sub-oscillation input: 32 kHz#set SUB_32KHZ_CPU__32KHZ_PER_32KHZ_EXT_32KHZ_CAN__2MHZ 0x11;; Oscillation input: 4 MHz#set MAIN_4MHZ_CPU___2MHZ_PER__1MHZ_EXT__1MHZ_CAN__2MHZ 0x21#set PLL_4MHZ__CPU__48MHZ_PER_16MHZ_EXT_24MHZ_CAN_16MHZ 0x22#set PLL_4MHZ__CPU__64MHZ_PER_16MHZ_EXT_32MHZ_CAN_16MHZ 0x23#set PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_27MHZ_CAN_20MHZ 0x24#set PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_40MHZ_CAN_20MHZ 0x25#set PLL_4MHZ__CPU__96MHZ_PER_16MHZ_EXT_48MHZ_CAN_16MHZ 0x26 ;not MB91V460, ...#set PLL_4MHZ__CPU_100MHZ_PER_20MHZ_EXT_50MHZ_CAN_20MHZ 0x27 ;not MB91V460, ...;; MB91461R only: Oscillation input: 10 MHz#set PLL_10MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ 0x41;; MB91461R only: Oscillation input: 20 MHz#set PLL_20MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ 0x51;; User settings#set CLOCK_USER 0x61;;;#set CLOCKSPEED PLL_4MHZ__CPU__64MHZ_PER_16MHZ_EXT_32MHZ_CAN_16MHZ; ; <<< Select clock configuration;; There are different default configurations available, where all necessary settings for; clocks and the related registers are made. Beside this configurations, there is the; possibility to define a user configuration in the chapter "Definition of; Configurations";; - NO_CLOCK means:; The clock registers are not set by the start-up file.;; - PLL_4MHZ__CPU__64MHZ_PER_16MHZ_EXT_32MHZ_CAN_16MHZ means:; Main oszillation = 4 MHz, PLL is activated; CPU clock (CLKB) = 64 MHZ; Peripheral clock (CLKP) = 16 MHZ; Ext. bus clock (CLKT) = 32 MHZ; CAN clock (CLKCAN) = 16 MHz, using PLLx;; - CLOCK_USER:; The user configuration definded in the chapter "Definition of Configurations" is set.;; Note: Not all frequencies are supported by every device. Please see the hardware; manual.;;=========================================================================================; 4.7.2 Select Clock Modulator;=========================================================================================;#set CLOMO OFF ; <<< Enable /disable clock modulator;#set CMPR 0x026F ; <<< Ref. to the data sheet, CMPR;; Please refer to the data sheet of the device if you enable clock modulation. The; register CMPR dependant on the PLL-Clock.;; Note: If the CLKCAN source is set either to main oscillator or to PLL output then the; clock for the CAN is not influenced by the clock modulation. If the CLKCAN; source is set CPU clock (CLKB) then the clock for the CAN is also modulated (if; the clock modulator is enabled).;; Note: If the clock modulator is enabled, the wait states of the internal flash wait; states must be adapted to maximum frequency. Please check the wait states; settings.;; Note: This feature is not supported by every device, e.g. MB91461. Please check the; data sheet.;;=========================================================================================; 4.8 External Bus Interface;; The rest of the configuration is only applicable for devices with an external bus; interface.;; If the device does not offer an external bus interface, the configuration can be; stoped at this point.;;=========================================================================================;#set EXTBUS DEFAULT ; <<< Ext. Bus on/off;; ON - The ext. bus interface is enabled and is configured as; set below.;; OFF - The ext. bus interface is diabled. The port function; registers are set to general I/O. The registers of; ext. bus interface will not be touched by the start-up; file.; Be aware, that the device might be conifgured in ext.; bus mode by default after reset.;; DEFAULT - Neither the register nor the respective port function; registers are touched by the start-up file.; Be aware, that the device might be conifgured in ext.; bus mode by default after reset.;;; Note: This feature is not supported by every device. Please check the data sheet. The; following devices for example do not offer an external bus interface: MB91464A,; MB91467C, MB91465K, MB91463N, MB91465X.;;=========================================================================================; 4.8.1 Select Chipselect (Only EXTBUS == ON);=========================================================================================;#set CS0 OFF ; <<< select CS (ON/OFF)#set CS1 OFF ; <<< select CS (ON/OFF)#set CS2 OFF ; <<< select CS (ON/OFF)#set CS3 OFF ; <<< select CS (ON/OFF)#set CS4 OFF ; <<< select CS (ON/OFF)#set CS5 OFF ; <<< select CS (ON/OFF)#set CS6 OFF ; <<< select CS (ON/OFF)#set CS7 OFF ; <<< select CS (ON/OFF)#set SDRAM OFF ; <<< select if a SDRAM is connected;;#set ENACSX B'00000000 ; <<< set CS, ENACSX; ||||||||; ||||||||__ CS0 bit, enable/disable CS0 (1/0); |||||||___ CS1 bit, enable/disable CS1 (1/0); ||||||____ CS2 bit, enable/disable CS2 (1/0); |||||_____ CS3 bit, enable/disable CS3 (1/0); ||||______ CS4 bit, enable/disable CS4 (1/0); |||_______ CS5 bit, enable/disable CS5 (1/0); ||________ CS6 bit, enable/disable CS6 (1/0); |_________ CS7 bit, enable/disable CS7 (1/0);; Note: If the SWB Monitor Debugger is used, set the CS1 (external RAM only) or CS0 and; CS 1 (external RAM and flash) to off.;; Note: Not all Chipselects are supported by the different devices. Please check the; data sheet.;;=========================================================================================; 4.8.2 Set memory addressing for Chipselects (only EXTBUS == ON);=========================================================================================;#set AREASEL0 0x0000 ; <<< set start add. for CS0, ASR0#set AREASEL1 0x0000 ; <<< set start add. for CS1, ASR1#set AREASEL2 0x0000 ; <<< set start add. for CS2, ASR2#set AREASEL3 0x0000 ; <<< set start add. for CS3, ASR3#set AREASEL4 0x0000 ; <<< set start add. for CS4, ASR4#set AREASEL5 0x0000 ; <<< set start add. for CS5, ASR5#set AREASEL6 0x0000 ; <<< set start add. for CS6, ASR6#set AREASEL7 0x0000 ; <<< set start add. for CS7, ASR7;; Configure the starting address of each used Chipselect. Chipselects which are not used; (not set to ON in "Select Chipselect") need not be set (setting ignored).;; NOTE: Just the upper 16-bit of the start address must be set, e.g. when using start; address 0x00080000 set 0x0008.;;=========================================================================================; 4.8.3 Configure Chipselect Area (only EXTBUS == ON);=========================================================================================;#set CONFIGCS0 B'0000000000000000 ; <<< Config. CS0, ACR0#set CONFIGCS1 B'0000000000000000 ; <<< Config. CS1, ACR1#set CONFIGCS2 B'0000000000000000 ; <<< Config. CS2, ACR2#set CONFIGCS3 B'0000000000000000 ; <<< Config. CS3, ACR3#set CONFIGCS4 B'0000000000000000 ; <<< Config. CS4, ACR4#set CONFIGCS5 B'0000000000000000 ; <<< Config. CS5, ACR5#set CONFIGCS6 B'0000000000000000 ; <<< Config. CS6, ACR6#set CONFIGCS7 B'0000000000000000 ; <<< Config. CS7, ACR7; ||||||||||||||||; ||||||||||||||||__ TYP0 bit, TYP0-4 bits select access type; |||||||||||||||___ TYP1 bit; ||||||||||||||____ TYP2 bit; |||||||||||||_____ TYP3 bit; ||||||||||||______ LEND bit, select little '1' or big endian '0'; |||||||||||_______ WREN bit, en-/disable (1/0) Write access; ||||||||||________ PFEN bit, en-/disable (1/0) pre-fetch; |||||||||_________ SREN bit, en-/disable (1/0) share of BRQ & BGRNTX; ||||||||__________ BST0 bit, BSTx bits select burst size; |||||||___________ BST1 bit; ||||||____________ DBW0 bit, DBWx select data bus width; |||||_____________ DBW1 bit; ||||______________ ASZ0 bit, ASZx bits select address size of CS; |||_______________ ASZ1 bit; ||________________ ASZ2 bit; |_________________ ASZ3 bit;; Bit description:;; TYP3 TYP2 TYP1 TYP0 : Select access type of each CS; 0 0 X X : Normal access (asynchronous SRAM, I/O,; single/page/busrt-ROM/FLASH); 0 1 X X : Address/data multiplexed (8bit / 16bit bus width only); 0 X X 0 : WAIT insertion by RDY disabled; 0 X X 1 : WAIT insertion by RDY enabled; 0 X 0 X : The WR0X pin to the WR3X pin are used as write strobes; (WRX is fixed at H-Level); 0 X 1 X : The WRX pin is used as write strobe; 1 0 0 0 : Memory type A: SDRAM/FCRAM (Auto pre-charge used); 1 0 0 1 : Memory type B: FCRAM (Auto pre-charge used); 1 0 1 0 : setting not allowed; 1 0 1 1 : setting not allowed; 1 1 0 0 : setting not allowed; 1 1 0 1 : setting not allowed; 1 1 1 0 : setting not allowed; 1 1 1 1 : mask area setting;; LEND : select BYTE ordering; 0 : Big endian; 1 : Little endian;; WREN : enable or disable write access; 0 : disabled; 1 : enabled,;; PFEN : Enable or disable the pre-fetch; 0 : disabled; 1 : enabled,;; SREN : Enable or disable the sharing of BRQ and BGRNTX; 0 : disabled; 1 : enabled (CSx pin High-Z);; BST1 BST0 : set burst size of chip select area; 0 0 : 1 burst (single access); 0 1 : 2 bursts (Address boundary 1 bit); 1 0 : 4 bursts (Address boundary 2 bit); 1 1 : 8 bursts (Address boundary 3 bit);; DBW1 DBW0 : Set data bus width; 0 0 : 8-bit (BYTE access); 0 1 : 16-bit (HALF-WORD access); 1 0 : 32-bit (WORD access); 1 1 : Reserved;; ASZ3 ASZ2 ASZ1 ASZ0 : Select memory size of each chipselect; 0 0 0 0 : 64 Kbyte (0x01.0000 bytes; use ASR A[31:16] bits); 0 0 0 1 : 128 Kbyte (0x02.0000 bytes; use ASR A[31:17] bits); 0 0 1 0 : 256 Kbyte (0x04.0000 bytes; use ASR A[31:18] bits); 0 0 1 1 : 512 Kbyte (0x08.0000 bytes; use ASR A[31:19] bits); 0 1 0 0 : 1 Mbyte (0x10.0000 bytes; use ASR A[31:20] bits); 0 1 0 1 : 2 Mbyte (0x20.0000 bytes; use ASR A[31:21] bits); 0 1 1 0 : 4 Mbyte (0x40.0000 bytes; use ASR A[31:22] bits); 0 1 1 1 : 8 Mbyte (0x80.0000 bytes; use ASR A[31:23] bits); 1 0 0 0 : 16 Mbyte (0x100.0000 bytes; use ASR A[31:24] bits); 1 0 0 1 : 32 Mbyte (0x200.0000 bytes; use ASR A[31:25] bits); 1 0 1 0 : 64 Mbyte (0x400.0000 bytes; use ASR A[31:26] bits); 1 0 1 1 : 128 Mbyte (0x800.0000 bytes; use ASR A[31:27] bits); 1 1 0 0 : 256 Mbyte (0x1000.0000 bytes; use ASR A[31:28] bits); 1 1 0 1 : 512 Mbyte (0x2000.0000 bytes; use ASR A[31:29] bits); 1 1 1 0 : 1024 Mbyte(0x4000.0000 bytes; use ASR A[31:30] bits); 1 1 1 1 : 2048 Mbyte(0x8000.0000 bytes; use ASR A[31] bit);;=========================================================================================; 4.8.4 Set Wait cycles for Chipselects for ordinary businterface (only EXTBUS == ON);=========================================================================================;; Ordinary bus interface (w/o SDRAM and FRAM) (ACRx_Type = 0xxx);#set WAITREG0 B'0000000000000000 ; <<< CS0 Waitstates, AWR0#set WAITREG1 B'0000000000000000 ; <<< CS1 Waitstates, AWR1#set WAITREG2 B'0000000000000000 ; <<< CS2 Waitstates, AWR2#set WAITREG3 B'0000000000000000 ; <<< CS3 Waitstates, AWR3#set WAITREG4 B'0000000000000000 ; <<< CS4 Waitstates, AWR4#set WAITREG5 B'0000000000000000 ; <<< CS5 Waitstates, AWR5; ||||||||||||||||; ||||||||||||||||__ W00 bit, RDY/WRY-> CSX hold cycle; |||||||||||||||___ W01 bit, CSX->RDX/WRX setup extension cycle; ||||||||||||||____ W02 bit, Address -> CSX Delay selection; |||||||||||||_____ W03 bit, WR0X to WR3X/WRX outout timing; ||||||||||||______ W04 bit, W04/W05 Write recovery cycle; |||||||||||_______ W05 bit; ||||||||||________ W06 bit, W06/07 Read -> Write idle cycle; |||||||||_________ W07 bit selection; ||||||||__________ W08 bit, W08-W11 Intra-page access cycle; |||||||___________ W09 bit select (0-15 cycles); ||||||____________ W10 bit; |||||_____________ W11 bit; ||||______________ W12 bit, W12-W15 First access wait cycle; |||_______________ W13 bit select (0-15 cycles); ||________________ W14 bit; |_________________ W15 bit;;; SDRAM and FRAM bus interface (ACRx_Type = 100x);#set WAITREG6 B'0000000000000000 ; <<< CS6 Waitstates, AWR6#set WAITREG7 B'0000000000000000 ; <<< CS7 Waitstates, AWR7; ||||||||||||||||; ||||||||||||||||__ W00 bit, W0-W1 RAS precharge cycles; |||||||||||||||___ W01 bit; ||||||||||||||____ W02 bit, W2-W3 RAS active Time; |||||||||||||_____ W03 bit; ||||||||||||______ W04 bit, W4-W5 Write recovery cycle; |||||||||||_______ W05 bit; ||||||||||________ W06 bit, W6-W7 Read->Write idle cycle; |||||||||_________ W07 bit; ||||||||__________ W08 bit, W8-W10 CAS latency; |||||||___________ W09 bit; ||||||____________ W10 bit; |||||_____________ W11 bit, reserved; ||||______________ W12 bit, W12-W16 RAS-CAS delay; |||_______________ W13 bit; ||________________ W14 bit; |_________________ W15 bit, reserved;;; The bit meaning depends on the configured bus interface type. The bus interface can be; configured for different memory types. Depending on the memory type, the wait register; bits have a differnt meaning. CS0-5 should be configurable as ordinary bus interface; (w/o SDRAM and FRAM) and CS6-7 should be configurable as SDRAM and FRAM. It is also; possible and for some devices neccessary to configure other two chip selects as SDRAM; or FRAM interface. In such a case be aware of the bit meanings.;;; Ordinary bus interface (w/o SDRAM and FRAM) (ACRx_Type = 0xxx); --------------------------------------------------------------;; Bit description:;; W00 : RDY/WRX -> CSX hold extension cycle; 0 : 0 cycle; 1 : 1 cycle;; W01 : CSX -> RDX/WRX setup extention cycle; 0 : 0 cycle; 1 : 1 cycle;; W02 : Address -> CSX Delay selection; 0 : no delay selected; 1 : delay selected;; W03 : WR0X to WR3X/WRX outout timing selection; 0 : MCLK synchronous write output enable (ASX=L); 1 : Asynchronous write strobe output (norma operation);; W05 W04 : select Write recovery cycle; 0 0 : 0 cycle; 0 1 : 1 cycle; 1 0 : 2 cycles; 1 1 : 3 cycles;; W07 W06 : Read -> Write idle cycle selection; 0 0 : 0 cycle; 0 1 : 1 cycle; 1 0 : 2 cycles; 1 1 : 3 cycles;; W11 W10 W09 W08 : Intra-page access cycle select (0-15 cycles); 0 0 0 0 : 0 Wait state; 0 0 0 1 : 1 Auto-wait cycle; 0 0 1 0 : 2 Auto-wait cycle; ....; 1 1 1 1 : 15 Auto wait cycles;; W15 W14 W13 W12 : First access wait cycle can be set (0-15 cycles); 0 0 0 0 : 0 Wait state; 0 0 0 1 : 1 Auto-wait cycle; 0 0 1 0 : 2 Auto-wait cycle; ....; 1 1 1 1 : 15 Auto wait cycles;;;; SDRAM and FRAM bus interface (ACRx_Type = 100x); -----------------------------------------------;; Bit description:;; W01 W00 : RAS precharge cycles.; 0 0 : 1 cycle; 0 1 : 2 cycles; 1 0 : 5 cycles; 1 1 : 6 cycles;; W03 W02 : RAS active Time; 0 0 : 1 cycle; 0 1 : 2 cycles; 1 0 : 5 cycles; 1 1 : 6 cycles;; W05 W04 : set Write recovery cycle (1 - 4 cycles); 0 0 : Prohibited; 0 1 : 2 cycles; 1 0 : 3 cycles; 1 1 : 4 cycles;; W07 W06 : set Read -> Write idle Cycle (1 - 4 cycles); 0 0 : 1 cycle; 0 1 : 2 cycles; 1 0 : 3 cycles; 1 1 : 4 cycles;; W10 W09 W08 : set CAS latency (1 - 8 cycles); 0 0 0 : 1 cycle; 0 0 1 : 2 cycle; ...; 1 1 1 : 8 cycle;; W11 : RESERVED, ALWAYS WRITE 0 !;; W14 W13 W12 : set RAS-CAS delay (1 - 8 cycles); 0 0 0 : 1 cycle; 0 0 1 : 2 cycle; ...; 1 1 1 : 8 cycle;; W15 : RESERVED, ALWAYS WRITE 0 !;; The bit meaning depends on the configured bus interface type;;=========================================================================================; 4.8.5 Configure Chipselects for SDRAM memory only (only EXTBUS == ON and SDRAM);=========================================================================================;#set MEMCON B'00000111 ; <<< set special SDRAM register, MCRA; ||||||||; ||||||||__ ABS0 bit, set max. active banks (ABS1,0); |||||||___ ABS1 bit; ||||||____ BANK bit, set number of banks connected to CS; |||||_____ WBST bit, Write burst enable/disable; ||||______ PSZ0 bit, Set page size (PSZ2-0); |||_______ PSZ1 bit; ||________ PSZ2 bit; |_________ reserved, always write 0;; When connecting SDRAM/FCRAM TYP3-0=1000 in ACRx register the following register must; be setup.;; Bit description:;; ABS1 ABS0 : Set maximum number of bank, active at same time; 0 0 : 1 bank; 0 1 : 2 banks; 1 0 : 3 banks; 1 1 : 4 banks;; BANK : Set number of connected SDRAM banks; 0 : 2 banks; 1 : 4 banks;; WBST : Write burst enable; 0 : Single Write; 1 : Busrt Write;; PSZ2 PSZ1 PS0 : Select page size of connected memory; 0 0 0 : 8-bit column address = A0 to A7; 0 0 1 : 9-bit column address = A0 to A8; 0 1 0 : 10-bit column address = A0 to A9; 0 1 1 : 11-bit column address = A0 to A9, A11; 1 X X : setting disabled;;;=========================================================================================; 4.8.6 Referesh Control Register RCR (only EXTBUS == ON and SDRAM);=========================================================================================;#set REFRESH B'1110001001000111 ; <<< set Refresh Control Register, RCR; ||||||||||||||||; ||||||||||||||||__ TRC0 bit, set refresh cycle (TRC2-0); |||||||||||||||___ TRC1 bit; ||||||||||||||____ TRC2 bit; |||||||||||||_____ PON bit, set power-on control; ||||||||||||______ RFC0 bit, set refresh count (RFC2-0); |||||||||||_______ RFC1 bit; ||||||||||________ RFC2 bit; |||||||||_________ BRST bit, set burst refresh control; ||||||||__________ RFINT0 bit, set auto refresh interval; |||||||___________ RFINT1 bit, (RFINT5-0); ||||||____________ RFINT2 bit; |||||_____________ RFINT3 bit; ||||______________ RFINT4 bit; |||_______________ RFINT5 bit; ||________________ RRLD bit, counter refresh strat control; |_________________ SELF bit, self refresh control;;; This register sets various SDRAM refresh controls. When SDRAM control is not set for; any area, the setting of this register is meaningless, but do not change the register; value at initial state. When a read is performed using a read-modify-write; instruction, 0 always returns from the SELF, RRLD, and PON bits.;; Bit description:;;; TRC2 TRC1 TRC0 : Refresh Cycle; 0 0 0 : 4; 0 0 1 : 5; 0 1 0 : 6; 0 1 1 : 7; 1 0 0 : 8; 1 0 1 : 9; 1 1 0 : 10; 1 1 1 : 11;; PON : Power-on control; 0 : disabled; 1 : power-on sequence started;; RFC2 RFC1 RFC0 : Refresh Count; 0 0 0 : 256; 0 0 1 : 512; 0 1 0 : 1024; 0 1 1 : 2048; 1 0 0 : 4096; 1 0 1 : 8192; 1 1 0 : Setting disabled; 1 1 1 : Refresh disabled;; BRST : Burst refresh control; 0 : Decentralised refresh; 1 : burst refresh;; RFINT[5-0] : auto refresh interval;; RRLD : Refresh counter Activation Control; 0 : Disabled,; 1 : Autorefresh performed once, then value of RFINT reloaded;; SELF : Self refresh control; 0 : auto refresh or power down; 1 : Transitions to self-refresch mode;; NOTE: PON bit is set after the above setting. Do not set PON bit to 1 in the; above setting. Otherwise the settings are not correct set.;;=========================================================================================; 4.8.7 Terminal and Timing Control Register (only EXTBUS == ON);=========================================================================================;#set TIMECONTR B'00000000 ; <<< set TCR register, TCR; ||||||||; ||||||||__ RDW0 bit, set wait cycle reduction (RDW0,1); |||||||___ RDW1 bit; ||||||____ OHT0 bit, set output hold delay (OHT1,0); |||||_____ OHT1 bit; ||||______ reserved, always write 0; |||_______ PCLR bit, prefetch buffer clear; ||________ PSUS bit, prefetch suspend; |_________ BREN bit, BRQ input enable;; This register controls the general functions of the external bus interface controller; such as the common-pin function setting and timing control.;; Bit description:;; RDW1 RDW0 : Wait cycle reduction; 0 0 : Normal Wait (AWR0 - 7 setting); 0 1 : 1/2 of AWR0 - 7 setting value; 1 0 : 1/4 of AWR0 - 7 setting value; 1 1 : 1/8 of AWR0 - 7 setting value;; OHT1 OHT0 : Output hold selection bit; 0 0 : Output performed at falling edge of SYSCLK/MCLK; 0 1 : Output performed about 3ns after falling edge of SYSCLK/MCLK; 1 0 : Output performed about 4ns after falling edge of SYSCLK/MCLK; 1 1 : Output performed about 5ns after falling edge of SYSCLK/MCLK;; PCLR : Prefetch buffer all clear; 0 : normal state; 1 : Prefetch buffer cleared;; PSUS : prefetch suspension bit; 0 : Prefetch enabled; 1 : Prefetch disabled;; BREN : BRQ input enable; 0 : disabled,; 1 : enabled, Bus sharing of BRQ/BGRNTX performed;; Note: This function is used to prevent an excessive access cycle wait while operating; at a low-speed clock (such as while base clock operating at low speed or; high frequency division rate for external bus clock).;;=========================================================================================; 4.8.8 Enable/Disable I-CACHE (only EXTBUS == ON);=========================================================================================;#set C1024 1 ; CACHE Size: 1024 BYTE#set C2048 2 ; CACHE Size: 2048 BYTE#set C4096 3 ; CACHE Size: 4096 BYTE;;#set CACHE OFF ; <<< Select use of cache#set CACHE_SIZE C4096 ; <<< Select size of cache, ISIZE;; It is possible to use cache functionality on the I-Bus on several devices. Please; check the corresponidng data sheet if this feature is available on a certain device; and for the size of the cache. This is the general cache configuration. It is possible; to configure for each CS area, if the cache should be used.;; Note: This feature is not supported by every device. Please check the data sheet. The; feature is for example supported by MB91461R, MB91469G.;;=========================================================================================; 4.8.9 Enable CACHE for chipselect (only EXTBUS == ON);=========================================================================================;#set CHEENA B'11111111 ; <<< en-/disable cache, CHER; ||||||||; ||||||||__ CHE0 bit, CS0 area; |||||||___ CHE1 bit, CS1 area; ||||||____ CHE2 bit, CS2 area; |||||_____ CHE3 bit, CS3 area; ||||______ CHE4 bit, CS4 area; |||_______ CHE5 bit, CS5 area; ||________ CHE6 bit, CS6 area; |_________ CHE7 bit, CS7 area;; Additional to the general cache enable setting, select which CS area should be used; with cache functionality.;; Note: Not all Chipselects are supported by the different devices. Please check the; data sheet.;; Note: This feature is not supported by every device. Please check the data sheet. The; Feature is supported by MB91461R, MB91469G.;;=========================================================================================; 4.8.10 Select External bus mode (Data lines) (only EXTBUS == ON);=========================================================================================;#set PFUNC0 B'11111111 ;<<< Data lines or GIO, PFR00; ||||||||; ||||||||__ D24 / P00_0; |||||||___ D25 / P00_1; ||||||____ D26 / P00_2; |||||_____ D27 / P00_3; ||||______ D28 / P00_4; |||_______ D29 / P00_5; ||________ D30 / P00_6; |_________ D31 / P00_7;#set PFUNC1 B'11111111 ;<<< Data lines or GIO, PFR01; ||||||||; ||||||||__ D16 / P01_0; |||||||___ D17 / P01_1; ||||||____ D18 / P01_2; |||||_____ D19 / P01_3; ||||______ D20 / P01_4; |||_______ D21 / P01_5; ||________ D22 / P01_6; |_________ D23 / P01_7;#set PFUNC2 B'11111111 ;<<< Data lines or GIO, PFR02; ||||||||; ||||||||__ D8 / P02_0; |||||||___ D9 / P02_1; ||||||____ D10 / P02_2; |||||_____ D11 / P02_3; ||||______ D12 / P02_4; |||_______ D13 / P02_5; ||________ D14 / P02_6; |_________ D15 / P02_7;#set PFUNC3 B'11111111 ;<<< Data lines or GIO, PFR03; ||||||||; ||||||||__ D0 / P03_0; |||||||___ D1 / P03_1; ||||||____ D2 / P03_2; |||||_____ D3 / P03_3; ||||______ D4 / P03_4; |||_______ D5 / P03_5; ||________ D6 / P03_6; |_________ D7 / P03_7;; Select if the ports are set to; 1 : External bus mode, I/O for data lines or; 0 : General I/O port (GIO);; Note: Not all data-lines are supported by the different devices. Please check the data; sheet.;;=========================================================================================; 4.8.11 Select External bus mode (Address lines) (only EXTBUS == ON);=========================================================================================;#set PFUNC4 B'11111111 ;<<< Address lines or GIO, PFR04; ||||||||; ||||||||__ A24 / P04_0; |||||||___ A25 / P04_1; ||||||____ A26 / P04_2; |||||_____ A27 / P04_3; ||||______ A28 / P04_4; |||_______ A29 / P04_5; ||________ A30 / P04_6; |_________ A31 / P04_7;#set PFUNC5 B'11111111 ;<<< Address lines or GIO, PFR05; ||||||||; ||||||||__ A16 / P05_0; |||||||___ A17 / P05_1; ||||||____ A18 / P05_2; |||||_____ A19 / P05_3; ||||______ A20 / P05_4; |||_______ A21 / P05_5; ||________ A22 / P05_6; |_________ A23 / P05_7;#set PFUNC6 B'11111111 ;<<< Address lines or GIO, PFR06; ||||||||; ||||||||__ A8 / P06_0; |||||||___ A9 / P06_1; ||||||____ A10 / P06_2; |||||_____ A11 / P06_3; ||||______ A12 / P06_4; |||_______ A13 / P06_5; ||________ A14 / P06_6; |_________ A15 / P06_7;#set PFUNC7 B'11111111 ;<<< Address lines or GIO, PFR07; ||||||||; ||||||||__ A0 / P07_0; |||||||___ A1 / P07_1; ||||||____ A2 / P07_2; |||||_____ A3 / P07_3; ||||______ A4 / P07_4; |||_______ A5 / P07_5; ||________ A6 / P07_6; |_________ A7 / P07_7;; Select if the ports are set to; 1 : External bus mode, I/O for address lines or; 0 : General I/O port (GIO);; Note: Not all address-lines are supported by the different devices. Please check the; data sheet.;;=========================================================================================; 4.8.12 Select External bus mode (Control signals) (only EXTBUS == ON);=========================================================================================;#set PFUNC8 B'11111111 ;<<< Control signals or GIO, PFR08; ||||||||; ||||||||__ WRX0 / P08_0; |||||||___ WRX1 / P08_1; ||||||____ WRX2 / P08_2; |||||_____ WRX3 / P08_3; ||||______ RDX / P08_4; |||_______ BGRNTX / P08_5; ||________ BRQ / P08_6; |_________ RDY / P08_7;#set PFUNC9 B'11111111 ;<<< Control signals or GIO, PFR09; ||||||||; ||||||||__ CSX0 / P09_0; |||||||___ CSX1 / P09_1; ||||||____ CSX2 / P09_2; |||||_____ CSX3 / P09_3; ||||______ CSX4 / P09_4; |||_______ CSX5 / P09_5; ||________ CSX6 / P09_6; |_________ CSX7 / P09_7;#set PFUNC10 B'01011111 ;<<< Control signals or GIO, PFR10; ||||||||; ||||||||__ SYSCLK or !SYSCLK / P10_0; |||||||___ ASX / P10_1; ||||||____ BAAX / P10_2; |||||_____ WEX / P10_3; ||||______ MCLKO or !MCLKO / P10_4; |||_______ MCLKI or !MCLKI/ P10_5; ||________ MCLKE / P10_6; |_________ -;#set EPFUNC10 B'00000000 ;<<< Control signals or GIO, EPFR10; ||||||||; ||||||||__ 0:SYSCLK / 1:!SYSCLK; |||||||___ -; ||||||____ -; |||||_____ -; ||||______ 0:MCLKO / 1:!MCLKO; |||_______ 0:MCLKI / 1:!MCLKI; ||________ 0:MCLKI / 1:!MCLKI; |_________ -;;; Select if the ports are set to; 1 : External bus mode, I/O for control lines or; 0 : General I/O port (GIO);; Note: Not all control-lines are supported by the different devices. Please check the; data sheet.;;=========================================================================================; 5 Definition of Configurations;=========================================================================================;#set NOCLOCK 0 ; do not touch CKSCR register#set MAINCLOCK 1 ; select main clock; ; MB91461R : 1/4 of oscillation input; ; Others: 1/2 of oscillation input#set MAINPLLCLOCK 2 ; select main clock with PLL#set SUBCLOCK 3 ; select subclock (if available);#set PSCLOCK_CLKB 0x00 ; select core clock (initial)#set PSCLOCK_PLL 0x10 ; select PLL output (x)#set PSCLOCK_MAIN 0x30 ; select Main Oscillation;;=========================================================================================; 5.1 CLOCKSPEED == CLOCK_USER <<<;=========================================================================================; Must be configured only in the case of CLOCKSPEED is set to CLOCK_USER. Please see the; corresponding application note.;#if (CLOCKSPEED == CLOCK_USER )#set CLOCKSOURCE MAINPLLCLOCK ; <<< Clocksource#set ENABLE_SUBCLOCK OFF ; <<< Subclock: ON/OFF#set PLLSPEED 0x010F ; <<< 0x48Ch, 0x48Dh: PLLDIVM/N ; 64 MHz#set DIV_G 0x0F ; <<< 0x48Eh: PLLDIVG;#set MUL_G 0x0F ; <<< 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; <<< 0x486h: DIV0R_B; => /1 ; 64 MHz#set PERCLOCK 0x03 ; <<< 0x486h: DIV0R_P; => /4 ; 16 MHz#set EXTBUSCLOCK 0x01 ; <<< 0x487h: DIV1R_T; => /2 ; 32 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; <<< 0x4C0h: CANPRE; => PLLx;128 MHz#set PSDVC 0x07 ; <<< 0x4C0h: CANPRE_DVC;=> /8 ; 16 MHz#set CANCLOCK 0x00 ; <<< 0x4C1h: CANCKD;; Voltage Regulator#set REGULATORSEL 0x06 ; <<< 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; <<< 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; <<< 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; <<< 0x7004h: FMWT;#set FLASHMWT2 0x10 ; <<< 0x7006h: FMWT2;#endif;;=========================================================================================; 5.2 CLOCKSPEED == NO_CLOCK;=========================================================================================;#if (CLOCKSPEED == NO_CLOCK )#set CLOCKSOURCE NOCLOCK#endif;;=========================================================================================; 5.2 CLOCKSPEED == SUB_32KHZ_CPU__32KHZ_PER_32KHZ_EXT_32KHZ_CAN__2MHZ;=========================================================================================;#if (CLOCKSPEED == SUB_32KHZ_CPU__32KHZ_PER_32KHZ_EXT_32KHZ_CAN__2MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91463N) || (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE SUBCLOCK ; Clocksource#set ENABLE_SUBCLOCK ON ; Subclock: ON/OFF#set PLLSPEED 0x010F ; 0x48Ch, 0x48Dh: PLLDIVM/N ; n. a.#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x0F ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 32 KHz#set PERCLOCK 0x00 ; 0x486h: DIV0R_P; => /1 ; 32 KHz#set EXTBUSCLOCK 0x00 ; 0x487h: DIV1R_T; => /1 ; 32 KHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_MAIN ; 0x4C0h: CANPRE; => MAIN ; 4 MHz#set PSDVC 0x01 ; 0x4C0h: CANPRE_DVC; => /2 ; 2 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC100 ; 0x7004h: FMWT;#set FLASHMWT2 0x00 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.3 CLOCKSPEED == MAIN__4MHZ_CPU___2MHZ_PER__1MHZ_EXT__1MHZ_CAN__2MHZ;=========================================================================================;#if (CLOCKSPEED == MAIN_4MHZ_CPU___2MHZ_PER__1MHZ_EXT__1MHZ_CAN__2MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x010F ; 0x48Ch, 0x48Dh: PLLDIVM/N ; n. a.#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x0F ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 2 MHz#set PERCLOCK 0x01 ; 0x486h: DIV0R_P; => /2 ; 1 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 1 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_MAIN ; 0x4C0h: CANPRE; => PLLx ; 4 MHz#set PSDVC 0x01 ; 0x4C0h: CANPRE_DVC; => /2 ; 2 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC100 ; 0x7004h: FMWT;#set FLASHMWT2 0x00 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.4 CLOCKSPEED == PLL_4MHZ__CPU__48MHZ_PER_16MHZ_EXT_24MHZ_CAN_16MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU__48MHZ_PER_16MHZ_EXT_24MHZ_CAN_16MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x010B ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 48 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x0B ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 48 MHz#set PERCLOCK 0x02 ; 0x486h: DIV0R_P; => /3 ; 16 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 24 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 96 MHz#set PSDVC 0x05 ; 0x4C0h: CANPRE_DVC; => /6 ; 16 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#if (DEVICE == MB91469G)#set REGULATORSEL 0x36 ; 0x4CEh: REGSEL;#else#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#endif#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC201 ; 0x7004h: FMWT;#set FLASHMWT2 0x00 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.5 CLOCKSPEED == PLL_4MHZ__CPU__64MHZ_PER_16MHZ_EXT_32MHZ_CAN_16MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU__64MHZ_PER_16MHZ_EXT_32MHZ_CAN_16MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x010F ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 64 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x0F ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 64 MHz#set PERCLOCK 0x03 ; 0x486h: DIV0R_P; => /4 ; 16 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 32 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 128 MHz#set PSDVC 0x07 ; 0x4C0h: CANPRE_DVC; => /8 ; 16 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; 0x7004h: FMWT;#set FLASHMWT2 0x10 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.6 CLOCKSPEED == PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_27MHZ_CAN_20MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_27MHZ_CAN_20MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0113 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 80 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x13 ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 80 MHz#set PERCLOCK 0x03 ; 0x486h: DIV0R_P; => /4 ; 20 MHz#set EXTBUSCLOCK 0x02 ; 0x487h: DIV1R_T; => /3 ; 27 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 160 MHz#set PSDVC 0x07 ; 0x4C0h: CANPRE_DVC; => /8 ; 8 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; 0x7004h: FMWT;#set FLASHMWT2 0x10 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.7 CLOCKSPEED == PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_40MHZ_CAN_20MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU__80MHZ_PER_20MHZ_EXT_40MHZ_CAN_20MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91461R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0113 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 80 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x13 ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 80 MHz#set PERCLOCK 0x03 ; 0x486h: DIV0R_P; => /4 ; 20 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 40 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 160 MHz#set PSDVC 0x07 ; 0x4C0h: CANPRE_DVC; => /8 ; 8 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; 0x7004h: FMWT;#set FLASHMWT2 0x10 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.8 CLOCKSPEED == PLL_4MHZ__CPU__96MHZ_PER_16MHZ_EXT_48MHZ_CAN_16MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU__96MHZ_PER_16MHZ_EXT_48MHZ_CAN_16MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91464A) || (DEVICE == MB91465K) || (DEVICE == MB91463N) ||\(DEVICE == MB91461R) || (DEVICE == MB91467R)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0117 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 96 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x17 ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 64 MHz#set PERCLOCK 0x05 ; 0x486h: DIV0R_P; => /6 ; 16 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 32 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 192 MHz#set PSDVC 0x0B ; 0x4C0h: CANPRE_DVC; => /12 ; 16 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#if (DEVICE == MB91469G)#set REGULATORSEL 0x36 ; 0x4CEh: REGSEL;#else#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#endif#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; 0x7004h: FMWT;#set FLASHMWT2 0x10 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.9 CLOCKSPEED == PLL_4MHZ__CPU_100MHZ_PER_20MHZ_EXT_50MHZ_CAN_20MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_4MHZ__CPU_100MHZ_PER_20MHZ_EXT_50MHZ_CAN_20MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91464A) || (DEVICE == MB91465K) || (DEVICE == MB91463N) ||\(DEVICE == MB91461R) || (DEVICE == MB91467R) || (DEVICE == MB91467D)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0118 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 100 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x17 ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 100 MHz#set PERCLOCK 0x04 ; 0x486h: DIV0R_P; => /5 ; 20 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 50 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 200 MHz#set PSDVC 0x09 ; 0x4C0h: CANPRE_DVC; => /10 ; 20 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator#if (DEVICE == MB91469G)#set REGULATORSEL 0x36 ; 0x4CEh: REGSEL;#else#set REGULATORSEL 0x06 ; 0x4CEh: REGSEL;#endif#set REGULATORCTRL 0x00 ; 0x4CFh: REGCTR;; Memory Controller#set FLASHCONTROL 0x032 ; 0x7002h: FCHCR;#set FLASHREADT 0xC413 ; 0x7004h: FMWT;#set FLASHMWT2 0x10 ; 0x7006h: FMWT2;#endif;;=========================================================================================; 5.10 CLOCKSPEED == PLL_10MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_10MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91464A) || (DEVICE == MB91467B) || (DEVICE == MB91467C) ||\(DEVICE == MB91467D) || (DEVICE == MB91469G) || (DEVICE == MB91465K) ||\(DEVICE == MB91463N) || (DEVICE == MB91467R) || (DEVICE == MB91465X)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0105 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 60 MHz#set DIV_G 0x0B ; 0x48Eh: PLLDIVG;#set MUL_G 0x1F ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 60 MHz#set PERCLOCK 0x02 ; 0x486h: DIV0R_P; => /3 ; 20 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 30 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 120 MHz#set PSDVC 0x05 ; 0x4C0h: CANPRE_DVC; => /6 ; 20 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator; -; Memory Controller; -#endif;;=========================================================================================; 5.11 CLOCKSPEED == PLL_20MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ;=========================================================================================;#if (CLOCKSPEED == PLL_20MHZ_CPU__60MHZ_PER_20MHZ_EXT_30MHZ_CAN_20MHZ );; Start restriction; Maximum frequency#if (DEVICE == MB91464A) || (DEVICE == MB91467B) || (DEVICE == MB91467C) ||\(DEVICE == MB91467D) || (DEVICE == MB91469G) || (DEVICE == MB91465K) ||\(DEVICE == MB91463N) || (DEVICE == MB91467R) || (DEVICE == MB91465X)#error: Frequency is not supported by this device.#endif; End restriction;#set CLOCKSOURCE MAINPLLCLOCK ; Clocksource#set ENABLE_SUBCLOCK OFF ; Subclock: ON/OFF#set PLLSPEED 0x0102 ; 0x48Ch, 0x48Dh: PLLDIVM/N ; 60 MHz#set DIV_G 0x0F ; 0x48Eh: PLLDIVG;#set MUL_G 0x1F ; 0x48Fh: PLLMULG;; Clock Divider#set CPUCLOCK 0x00 ; 0x486h: DIV0R_B; => /1 ; 60 MHz#set PERCLOCK 0x02 ; 0x486h: DIV0R_P; => /3 ; 20 MHz#set EXTBUSCLOCK 0x01 ; 0x487h: DIV1R_T; => /2 ; 30 MHz; CAN Clock#set PSCLOCKSOURCE PSCLOCK_PLL ; 0x4C0h: CANPRE; => PLLx ; 120 MHz#set PSDVC 0x05 ; 0x4C0h: CANPRE_DVC; => /6 ; 20 MHz#set CANCLOCK 0x00 ; 0x4C1h: CANCKD; all CAN Clocks enabled; Voltage Regulator; -; Memory Controller; -#endif;;=========================================================================================; 6 Section and Data Declaration;=========================================================================================.export __start.import _main.import _RAM_INIT.import _ROM_INIT#if CLIBINIT == ON.export __exit.import _exit.import __stream_init#endif#if CPLUSPLUS == ON.export __abort.import ___call_dtors.import _atexit#endif;=========================================================================================; 6.1 Define Stack Size;=========================================================================================.SECTION SSTACK, STACK, ALIGN=4#if STACK_RESERVE == ON.EXPORT __systemstack, __systemstack_top__systemstack:.RES.B STACK_SYS_SIZE__systemstack_top:#endif.SECTION USTACK, STACK, ALIGN=4#if STACK_RESERVE == ON.EXPORT __userstack, __userstack_top__userstack:.RES.B STACK_USR_SIZE__userstack_top:#endif;=========================================================================================; 6.2 Define Sections;=========================================================================================.section DATA, data, align=4.section INIT, data, align=4.section IRAM, code, align=4.section CONST, const, align=4.section INTVECT, const, align=4#if I_RAM.import _RAM_IRAM.import _ROM_IRAM#endif#if (DEVICE != MB91461R)#if (DEVICE == MB91469G).section SECURITY_VECTORS, code, locate = 0x248000#else.section SECURITY_VECTORS, code, locate = 0x148000#endif#if (BOOT_FLASH_SEC == OFF).data.w 0xFFFFFFFF.data.w 0xFFFFFFFF.data.w 0xFFFFFFFF.data.w 0xFFFFFFFF#else.res.w 4#endif#endif#if CPLUSPLUS == ON.section EXT_CTOR_DTOR, const, align=4 ; C++ constructors#endif;-----------------------------------------------------------------------------------------; MACRO Clear RC Watchdog;-----------------------------------------------------------------------------------------#macro ClearRCwatchdogLDI #0x4C7,R7 ; clear RC watchdogBANDL #0x7,@R7#endm;-----------------------------------------------------------------------------------------; MACRO WAIT_LOOP;-----------------------------------------------------------------------------------------#macro wait_loop loop_number#local _wait64_loopLDI #loop_number, R0_wait64_loop:ADD #-1, R0BNE _wait64_loop#endm.section CODE, code, align=4.section CODE_START, code, align=4;=========================================================================================; 7. S T A R T;=========================================================================================__start: ; start pointstartnop:NOP;ANDCCR #0xEF ; disable interruptsSTILM #LOW_PRIOR ; set interrupt level to low priorClearRCwatchdog ; clear harware watchdog;=========================================================================================; 7.1 Initialise Stack Pointer and Table Base Register;=========================================================================================#if STACKUSE == SYSSTACKORCCR #0x20LDI #__userstack_top, SP ; initialize SPANDCCR #0xDFLDI #__systemstack_top, SP ; initialize SP#endif#if STACKUSE == USRSTACKANDCCR #0xDFLDI #__systemstack_top, SP ; initialize SPORCCR #0x20LDI #__userstack_top, SP ; initialize SP#endifLDI #INTVECT, R0 ; set Table Basesmd_tbr:MOV R0, TBR#if (CLOCKSOURCE != NOCLOCK);=========================================================================================; 7.2 Check for CSV reset and set CSV;=========================================================================================; Start restriction; No clock supervisor (CSV)#if (DEVICE != MB91461R) && (DEVICE != MB91467R) && (DEVICE != MB91463N); End restrictionLDI:20 #0x04AD, R0 ; CSVCRBORL #0x8, @R0 ; Enable Main Osc CSVBTSTH #0x4, @R0 ; Check for Main Osc missingBEQ NoMAINCSVreset ; Main osc available -> branch; to NoCSVresetBANDL #0x7, @R0 ; Disable Main Osc CSVLDI #noClockStartup, R0 ; Main Clock missing -> noJMP @R0 ; clock startupNoMAINCSVreset:BORL #0x4, @R0 ; Enable Sub Osc CSVBTSTH #0x2, @R0 ; Check for Sub Osc missingBEQ NoSUBCSVreset ; Sub osc available -> branch; to NoCSVresetBANDL #0xB, @R0 ; Disable Sub Osc SCSV#if (CLOCKSOURCE == SUBCLOCK)LDI #noClockStartup, R0 ; Sub Clock missing -> noJMP @R0 ; clock startup#endifNoSUBCSVreset:#endif;=========================================================================================; 7.3 Check Clock Condition;=========================================================================================LDI #0x484, R0 ; Check for Default ValuesLDI #0x0F, R1ANDB R1, @R0BEQ clock_startup;=========================================================================================; 7.4 Restore Default Settings after Reset;=========================================================================================;=========================================================================================; 7.4.1 Disable Clock Modulator;=========================================================================================LDI #0x04BB, R0 ; Clock Modulator Control RegBANDL #0xD, @R0 ; Disable Frequency modulationFMODwait:BTSTL #8, @R0 ; Wait until Frequency modulationBNE FMODwait ; is disabledBANDL #0xE, @R0 ; Power down clock modulator;=========================================================================================; 7.4.2 Check if running on Sub Clock, change to Main Clock;=========================================================================================LDI:20 #0x0484,R12 ; Check if running on sub clockLDUB @R12,R0LDI:8 #0x3,R1AND R1,R0CMP #0x3,R0BNE notOnSubClockLDI:20 #0x04CC,R12 ; Check if Main Clock is stoppedBTSTL #1, @R12BEQ mainNotStoppedBANDL #0xE, @R12 ; Start Main OscillationLDI #0x4C8, R0 ; Main Stabilisation Wait TimeLDI #0x04, R1 ; 32.7 msAND R1, @R0BORH #0x02, @R0mainStabTime: ; Wait for stabilisation timeClearRCwatchdog ; clear harware watchdogBTSTH #8, @R0BEQ mainStabTimeLDI #0x0, R1STB R1, @R0mainNotStopped:LDI:20 #0x0484, R12 ; disable sub clock as sourceBANDL #0xD, @R12 ; Clock source = 0x01 (Main/2)notOnSubClock:;=========================================================================================; 7.4.3 Disable Sub Clock;=========================================================================================#if ENABLE_SUBCLOCK != ONLDI #0x0484, R0 ; Clock source control reg CLKRBANDL #0x7, @R0 ; Disable PLL#endif;=========================================================================================; 7.4.4 Check if running on PLL, Gear Down PLL;=========================================================================================LDI:20 #0x0484,R12 ; Check if running on PLLLDUB @R12,R0LDI:8 #0x3,R1AND R1,R0CMP #0x2,R0BNE notOnPllLDI:20 #0x0490, R11 ; clear flagsLDI:8 #0x0,R1STB R1, @R11LDI #0x04,R1STB R1, @R11 ; Set Flag for Simulator; no Effekt on; EmulatorBANDL #0xC, @R12 ; disable PLL as clock source; Clock Source = 0x00 (Main/2)LDI:20 #0x048E,R12 ; check if DivG != 0LDUB @R12, R0LDI:8 #0xFF,R1AND R1,R0BEQ notOnPllgearDownLoop:ClearRCwatchdog ; clear harware watchdogBTSTL #4, @R11 ; Gear DownBEQ gearDownLoop ;LDI #0x00,R1 ; Clear FlagsSTB R1, @R11 ;notOnPll:;=========================================================================================; 7.4.5 Disable PLL;=========================================================================================LDI #0x0484, R0 ; Clock source control reg CLKRBANDL #0xB, @R0 ; Disable PLL;=========================================================================================; 7.4.6 Set to Main Clock;=========================================================================================LDI:20 #0x0484,R12 ; Check if running on PLLBANDL #0xC, @R12 ; disable PLL as clock source; Clock Source = 0x00 (Main/2)clock_startup:;=========================================================================================; 7.5 Set Memory Controller;=========================================================================================; Start restriction; No embedded flash#if DEVICE != MB91461R; End restrictionLDI #0x7002, R1 ; FLASH Controller Reg.LDI #FLASHCONTROL, R2 ; Flash Controller SettingsSTH R2, @R1 ; set registerLDI #0x7004, R1 ; FLASH Memory Wait Timing Reg.LDI #FLASHREADT, R2 ; wait settingsSTH R2, @R1 ; set registerLDI #0x7006, R1 ; FLASH Memory Wait Timing Reg.LDI #FLASHMWT2, R2 ; wait settingsSTB R2, @R1 ; set register#endifClearRCwatchdog;=========================================================================================; 7.6 Clock startup;=========================================================================================;=========================================================================================; 7.6.1 Set Voltage Regulator Settings;=========================================================================================; Start restriction; No regulator settings#if DEVICE != MB91461R; End restrictionLDI #0x04CF, R0 ; REGCTRLDI #REGULATORCTRL, R1STB R1, @R0LDI #0x04CE, R0 ; REGSELLDI #REGULATORSEL, R1STB R1, @R0#endif;=========================================================================================; 7.6.2 Power on Clock Modulator - Clock Modulator Part I;=========================================================================================#if CLOMO == ONLDI #0x04BB, R0 ; Clock Modulator Control RegLDI #0x11, R1 ; Load value to Power on CMORB R1, @R0 ; Power on clock modulaor#endif;=========================================================================================; 7.6.3 Set CLKR Register w/o Clock Mode;=========================================================================================; Set Clock source (Base Clock) for the three clock tree selections; This select Base clock is used to select afterwards the 3; Clocks for the diffenrent internal trees.; When PLL is used, first pll multiplication ratio is set and PLL is; enabled. After waiting the PLL stabilisation time via timebase; timer, PLL clock is selected as clock source.LDI #0x048C, R0 ; PLL Cntl Reg. PLLDIVM/NLDI:20 #PLLSPEED, R1STH R1, @R0LDI #0x048E, R0 ; PLL Cntl Reg. PLLDIVGLDI #DIV_G, R1STB R1, @R0LDI #0x048F, R0 ; PLL Cntl Reg. PLLMULGLDI #MUL_G, R1STB R1, @R0;=========================================================================================; 7.6.4 Start PLL;=========================================================================================#if ( ( CLOCKSOURCE == MAINPLLCLOCK ) || ( PSCLOCKSOURCE == PSCLOCK_PLL ) )LDI #0x0484, R0 ; Clock source control reg CLKRLDI #0x04, R1 ; Use PLL x1, enable PLLORB R1, @R0 ; store data to CLKR register#endif#if ENABLE_SUBCLOCK == ONLDI #0x0484, R0 ; Clock source control reg CLKRLDI #0x08, R1 ; enable subclock operationORB R1, @R0 ; store data to CLKR registerLDI #0x4CA, R0 ; Sub Clock oszilationLDI #0x00, R1 ; stabilitsation time = 32 msAND R1, @R0BORH #0x02, @R0#endif;=========================================================================================; 7.6.5 Wait for PLL oscillation stabilisation;=========================================================================================#if ((CLOCKSOURCE==MAINPLLCLOCK)||(PSCLOCKSOURCE==PSCLOCK_PLL))LDI #0x0482, R12 ; TimeBaseTimer TBCRLDI #0x00, R1 ; set 1024 us @ 2 MHzSTB R1, @R12BANDH #7, @R12 ; clear interrupt flagLDI #0x0483, R0 ; clearTimeBaseTimer CTBRLDI #0xA5, R1STB R1, @R0LDI #0x5A, R1STB R1, @R0BANDH #7, @R12 ; clear interrupt flagBORH #8, @R12 ; set interrupt flag for simulatorPLLwait:ClearRCwatchdog ; clear harware watchdogBTSTH #8, @R12BEQ PLLwait#endif;=========================================================================================; 7.6.6 Set clocks;=========================================================================================;=========================================================================================; 7.6.6.1 Set CPU and peripheral clock;=========================================================================================; CPU and peripheral clock are set in one registerLDI #0x0486, R2 ; Set DIVR0 (CPU-clock (CLKB)LDI #((CPUCLOCK << 4) + PERCLOCK), R3 ; Load CPU clock settingSTB R3, @R2;=========================================================================================; 7.6.6.2 Set External Bus interface clock;=========================================================================================; set External Bus clock; Be aware to do smooth clock setting, to avoid wrong clock setting; Take care, always write 0 to the lower 4 bits of DIVR1 registerLDI #0x0487, R2 ; Set DIVR1LDI #(EXTBUSCLOCK << 4), R3 ; Load Peripheral clock settingSTB R3, @R2;=========================================================================================; 7.6.6.3 Set CAN clock prescaler;=========================================================================================; Set CAN Prescaler, only clock relevant parameterLDI #0x04C0, R0 ; Set CAN ClockParameter RegisterLDI #(PSCLOCKSOURCE + PSDVC), R1 ; Load DividerSTB R1, @R0 ; Set Divider; enable CAN clocksLDI #0x04c1, R0 ; Set CAN Clock enable RegisterLDI #CANCLOCK, R1 ; Load CANCLOCKSTB R1, @R0 ; set CANCLOCK;=========================================================================================; 7.6.6.4 Switch Main Clock Mode;=========================================================================================#if CLOCKSOURCE == MAINCLOCK;=========================================================================================; 7.6.6.5 Switch Subclock Mode;=========================================================================================#elif ( (CLOCKSOURCE == SUBCLOCK) )#if ENABLE_SUBCLOCK == ONLDI #0x4CA, R12subStabTime:ClearRCwatchdog ; clear harware watchdogBTSTH #8, @R12 ; wait until sub clock stabilisationBEQ subStabTime ; time is overLDI #0x0, R1STB R1, @R12LDI #0x0484, R0 ; Clock source control reg CLKRLDI #0x01, R1 ; load value to select main clockORB R1, @R0 ; enable main clock (1/2 external)LDI #0x03, R1 ; load value to select subclockORB R1, @R0 ; enable subclock as clock source#else#error: Wrong setting! The clock source is subclock, but the subclock is disabled.#endif;=========================================================================================; 7.6.7 Switch to PLL Mode;=========================================================================================#elif ( (CLOCKSOURCE == MAINPLLCLOCK) )#if (DIV_G != 0x00)LDI #0x0490, R0 ; PLL Ctrl RegisterLDI #0x00,R1STB R1, @R0 ; Clear FlagLDI #0x01,R1STB R1, @R0 ; Set Flag for Simulator; no Effekt on#endif ; EmulatorLDI #0x0484, R3 ; Clock source control reg CLKRBORL #0x2, @R3 ; enable PLL as clock source#if (DIV_G != 0x00)gearUpLoop:ClearRCwatchdog ; clear harware watchdogLDUB @R0, R2 ; LOAD PLLCTR to R2AND R1, R2 ; GRUP, counter reach 0BEQ gearUpLoopLDI #0x00,R1STB R1, @R0 ; Clear Gear-Up Flag#endif#endif;=========================================================================================; 7.6.8 Enable Frequncy Modulation - Clock Modulator Part II;=========================================================================================#if CLOMO == ON ; Only applicable if Modulator is onLDI #0x04B8, R0 ; Clock Modulation Parameter RegLDI #CMPR, R1 ; Load CMP valueSTH R1, @R0 ; Store CMP value in CMPRLDI #0x04BB, R0 ; Clock Modulator Control RegLDI #0x13, R1 ; Load value to FM on CMORB R1, @R0 ; FM on#endif#endifnoClockStartup:;=========================================================================================; 7.7 Set BusInterface;=========================================================================================; Start restriction; No ext. bus interface#if (DEVICE != MB91464A) && (DEVICE != MB91467C) && (DEVICE != MB91465K) && \(DEVICE != MB91463N) && (DEVICE != MB91465X); End restriction#if (EXTBUS == ON);=========================================================================================; 7.7.1 Disable all CS;=========================================================================================; Start restriction; Flashless device#if(DEVICE != MB91461R); End restrictionLDI #0x0680, R3 ; chip select enable register CSERLDI #(0x00), R2 ; load disable settingssmd_cs:ANDB R2, @R3 ; set register#endif;=========================================================================================; 7.7.2 Clear TCR Register;=========================================================================================LDI #0x0683, R1 ; Pin/Timing Control Register TCRBORH #0x6,@R1 ; load timing settings;=========================================================================================; 7.7.3 Set CS0;=========================================================================================#if CS0LDI #0x0640, R1 ; area select reg ASR0, ACR0LDI #(AREASEL0<<16)+CONFIGCS0, R0 ; load settingsST R0, @R1 ; set registersLDI #0x660, R1 ; area wait register awr0LDI #WAITREG0, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.4 Set CS1;=========================================================================================#if CS1LDI #0x0644, R1 ; area select reg ASR1, ACR1LDI #(AREASEL1<<16)+CONFIGCS1, R0 ; load settingsST R0, @R1 ; set registersLDI #0x662, R1 ; area wait register awr1LDI #WAITREG1, R2 ; wait settingsSTH R2, @R1 ; set register#endifsmd_cs_mb91461r:;=========================================================================================; 7.7.5 Set CS2;=========================================================================================#if CS2LDI #0x0648, R1 ; area select reg ASR2, ACR2LDI #(AREASEL2<<16)+CONFIGCS2, R0 ; load settingsST R0, @R1 ; set registersLDI #0x664, R1 ; area wait register awr2LDI #WAITREG2, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.6 Set CS3;=========================================================================================#if CS3LDI #0x064C, R1 ; area select reg ASR3, ACR3LDI #(AREASEL3<<16)+CONFIGCS3, R0 ; load settingsST R0, @R1 ; set registersLDI #0x666, R1 ; area wait register awr3LDI #WAITREG3, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.7 Set CS4;=========================================================================================#if CS4LDI #0x0650, R1 ; area select reg ASR4, ACR4LDI #(AREASEL4<<16)+CONFIGCS4, R0 ; load settingsST R0, @R1 ; set registersLDI #0x668, R1 ; area wait register awr4LDI #WAITREG4, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.8 Set CS5;=========================================================================================#if CS5LDI #0x0654, R1 ; area select reg ASR5, ACR5LDI #(AREASEL5<<16)+CONFIGCS5, R0 ; load settingsST R0, @R1 ; set registersLDI #0x66A, R1 ; area wait register awr5LDI #WAITREG5, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.9 Set CS6;=========================================================================================#if (CS6)LDI #0x0658, R1 ; area select reg ASR6, ACR6LDI #(AREASEL6<<16)+CONFIGCS6, R0 ; load settingsST R0, @R1 ; set registersLDI #0x66C, R1 ; area wait register awr6LDI #WAITREG6, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.10 Set CS7;=========================================================================================#if CS7LDI #0x065C, R1 ; area select reg ASR7, ACR7LDI #(AREASEL7<<16)+CONFIGCS7, R0 ; load settingsST R0, @R1 ; set registersLDI #0x66E, R1 ; area wait register awr7LDI #WAITREG7, R2 ; wait settingsSTH R2, @R1 ; set register#endif;=========================================================================================; 7.7.11 Set special SDRAM config register;=========================================================================================#if (SDRAM)LDI #0x670, R1 ; SDRAM memory config registerLDI #MEMCON, R2 ; wait settingsSTB R2, @R1 ; set register#endif;=========================================================================================; 7.7.12 set Port Function Register;=========================================================================================;=========================================================================================; 7.7.12.1 set PFR00 Register. External bus mode (D[24-31]) or General purpose port;=========================================================================================LDI #0x0D80, R1 ; Port Function Register 0, (PFR00)LDI #PFUNC0, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.2 set PFR01 Register. External bus mode (D[16-23]) or General purpose port;=========================================================================================LDI #0x0D81, R1 ; Port Function Register 1, (PFR01)LDI #PFUNC1, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.3 set PFR02 Register. External bus mode (D[8-15]) or General purpose port;=========================================================================================LDI #0x0D82, R1 ; Port Function Register 2, (PFR02)LDI #PFUNC2, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.4 set PFR03 Register. External bus mode (D[0-7]) or General purpose port;=========================================================================================LDI #0x0D83, R1 ; Port Function Register 3, (PFR03)LDI #PFUNC3, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.5 set PFR04 Register. External bus mode (Adr[24-31]) or General purpose port;=========================================================================================LDI #0x0D84, R1 ; Port Function Register 4, (PFR04)LDI #PFUNC4, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.6 set PFR05 Register. External bus mode (Adr[16-23]) or General purpose port;=========================================================================================LDI #0x0D85, R1 ; Port Function Register 5, (PFR05)LDI #PFUNC5, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.7 set PFR06 Register. External bus mode (Adr[8-15]) or General purpose port;=========================================================================================LDI #0x0D86, R1 ; Port Function Register 6, (PFR06)LDI #PFUNC6, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.8 set PFR07 Register. External bus mode (Adr[0-7]) or General purpose port;=========================================================================================LDI #0x0D87, R1 ; Port Function Register 7, (PFR07)LDI #PFUNC7, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.9 set PFR08 Register. External bus mode (Control Signals) or GIO port;=========================================================================================LDI #0x0D88, R1 ; Port Function Register 8, (PFR08)LDI #PFUNC8, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.10 set PFR09 Register. External bus mode (Control Signals) or GIO port;=========================================================================================LDI #0x0D89, R1 ; Port Function Register 9, (PFR09)LDI #PFUNC9, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.11 set PFR10 Register. External bus mode (Control Signals) or GIO port;=========================================================================================LDI #0x0D8A, R1 ; Port Function Register 10, (PFR10)LDI #PFUNC10, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.12.12 set EPFR10 Register. External bus mode (Control Signals) or GIO port;=========================================================================================LDI #0x0DCA, R1 ; Extended PFR 10, (EPFR10)LDI #EPFUNC10, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.13 Set TCR Register;=========================================================================================LDI #0x0683, R1 ; Pin/Timing Control Register TCRLDI #TIMECONTR, R0 ; load timing settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.14 Enable CACHE for selected CS;=========================================================================================LDI #0x0681, R3 ; chip select enable register CSERLDI #CHEENA, R2ORB R2, @R3;=========================================================================================; 7.7.15 set SDRAM Referesh Control Register;=========================================================================================#if (SDRAM)LDI #0x0684, R1 ; Refresh Control Register RCRLDI #REFRESH, R0 ; load refresh settingsSTH R0, @R1 ; set registerLDI #0x0008, R2OR R2, R0 ; Set PON bit to 1STH R0, @R1 ; set register#endif;=========================================================================================; 7.7.16 Enable used CS;=========================================================================================LDI #0x0680, R3 ; chip select enable register CSERLDI #ENACSX, R2; Start restriction; Flashless device#if (DEVICE == MB91461R); End restrictionemu_sram_cs_mb91461r:ANDB R2, @R3 ; set register#elseORB R2, @R3#endif;=========================================================================================; 7.7.17 I-cache on/off;=========================================================================================; Start restriction; No cache#if (DEVICE == MB91461R) || (DEVICE == MB91469G) || (DEVICE == others); End restriction#if CACHE#if CACHE_SIZE == C1024LDI #0x03C7, R1 ; Cache size register ISIZELDI #0x00, R2STB R2, @R1LDI #0x03E7, R1 ; Cache control reg ICHCRLDI #0x07, R2 ; Release entry locks, flush and enableSTB R2, @R1 ; cache#elif CACHE_SIZE == C2048LDI #0x03C7, R1 ; Cache size register ISIZELDI #0x01, R2STB R2, @R1LDI #0x03E7, R1 ; Cache control reg ICHCRLDI #0x07, R2 ; Release entry locks, flush and enableSTB R2, @R1 ; cache#elif CACHE_SIZE == C4096LDI #0x03C7, R1 ; Cache size register ISIZELDI #0x02, R2STB R2, @R1LDI #0x03E7, R1 ; Cache control reg ICHCRLDI #0x07, R2 ; Release entry locks, flush and enableSTB R2, @R1 ; cache#else#error: Wrong Cache size selected!#endif#elseLDI #0x03E7, R1 ; Cache control reg ICHCRLDI #0x06, R2 ; Release entry locks, flush and disableSTB R2, @R1 ; cache#endif#endif#elif (EXTBUS == OFF);=========================================================================================; 7.7.18 set Port Function Register to general as I/O-Port;=========================================================================================;=========================================================================================; 7.7.18.1 set PFR00 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D80, R1 ; Port Function Register 0, (PFR00)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.2 set PFR01 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D81, R1 ; Port Function Register 1, (PFR01)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.3 set PFR02 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D82, R1 ; Port Function Register 2, (PFR02)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.4 set PFR03 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D83, R1 ; Port Function Register 3, (PFR03)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.5 set PFR04 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D84, R1 ; Port Function Register 4, (PFR04)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.6 set PFR05 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D85, R1 ; Port Function Register 5, (PFR05)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.7 set PFR06 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D86, R1 ; Port Function Register 6, (PFR06)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.8 set PFR07 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D87, R1 ; Port Function Register 7, (PFR07)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.9 set PFR08 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D88, R1 ; Port Function Register 8, (PFR08)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.10 set PFR09 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D89, R1 ; Port Function Register 9, (PFR09)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.11 set PFR10 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0D8A, R1 ; Port Function Register 10, (PFR10)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================; 7.7.18.12 set EPFR10 Register. External bus mode as General purpose port;=========================================================================================LDI #0x0DCA, R1 ; Extended PFR10, (EPFR10)LDI #0x00, R0 ; load port settingsSTB R0, @R1 ; set register;=========================================================================================#elif (EXTBUS == DEFAULT)NOPsmd_cs_mb91461r:emu_sram_cs_mb91461r:smd_cs:#endif ; #endif (EXTBUS)#endif ; #endif (excl. devices)ClearRCwatchdog;=========================================================================================; 7.8 Copy code from Flash to I-RAM;=========================================================================================#if I_RAM == ONLDI #_RAM_IRAM, R0LDI #_ROM_IRAM, R1LDI #sizeof(IRAM), R13CMP #0, R13BEQ copy_iram_endcopy_iram1:ADD #-1, R13LDUB @(R13, R1), R12BNE:D copy_iram1STB R12, @(R13, R0)copy_iram_end:ClearRCwatchdog#endif;=========================================================================================; 7.9 Fill stacks;=========================================================================================#if STACK_FILL == ONLDI #STACK_PATTERN, R0LDI #SSTACK, R1LDI #sizeof(SSTACK), R2CMP #0, R2BEQ:D fill_sstack_endMOV R2, R13LDI #3, R12AND R2, R12BEQ:D fill_sstack2MOV R2, R3SUB R12, R3LDI #0x3, R4SUB R12, R4LSL #0x3, R4LDI #STACK_PATTERN, R5LSR R4, R5LDI #0x8, R4fill_sstack1:ADD #-1, R13LSR R4, R5CMP R3, R13BHI:D fill_sstack1STB R5, @(R13, R1)CMP #0, R3BEQ:D fill_sstack_endfill_sstack2:ADD #-4, R13BGT:D fill_sstack2ST R0, @(R13, R1)fill_sstack_end:LDI #STACK_PATTERN, R0LDI #USTACK, R1LDI #sizeof(USTACK), R2CMP #0, R2BEQ:D fill_ustack_endMOV R2, R13LDI #3, R12AND R2, R12BEQ:D fill_ustack2MOV R2, R3SUB R12, R3LDI #0x3, R4SUB R12, R4LSL #0x3, R4LDI #STACK_PATTERN, R5LSR R4, R5LDI #0x8, R4fill_ustack1:ADD #-1, R13LSR R4, R5CMP R3, R13BHI:D fill_ustack1STB R5, @(R13, R1)CMP #0, R3BEQ:D fill_ustack_endfill_ustack2:ADD #-4, R13BGT:D fill_ustack2ST R0, @(R13, R1)fill_ustack_end:ClearRCwatchdog#endif;=========================================================================================; Standard C startup;=========================================================================================;=========================================================================================; 7.10 Clear data;=========================================================================================; clear DATA section; According to ANSI, the DATA section must be cleared during start-upLDI:8 #0, R0LDI #sizeof DATA &~0x3, R1LDI #DATA, R13CMP #0, R1BEQ data_clr1data_clr0:ADD2 #-4, R1BNE:D data_clr0ST R0, @(R13, R1)data_clr1:LDI:8 #sizeof DATA & 0x3, R1LDI #DATA + (sizeof DATA & ~0x3), R13CMP #0, R1BEQ data_clr_enddata_clr2:ADD2 #-1, R1BNE:D data_clr2STB R0, @(R13, R1)data_clr_end:ClearRCwatchdog;=========================================================================================; 7.11 Copy Init section from ROM to RAM;=========================================================================================; copy rom; All initialised data's (e.g. int i=1) must be stored in ROM/FLASH area.; (start value); The Application must copy the Section (Init) into the RAM area.LDI #_RAM_INIT, R0LDI #_ROM_INIT, R1LDI #sizeof(INIT), R2CMP #0, R2BEQ:D copy_rom_endLDI #3, R12AND R2, R12BEQ:D copy_rom2MOV R2, R13MOV R2, R3SUB R12, R3copy_rom1:ADD #-1, R13LDUB @(R13, R1), R12CMP R3, R13BHI:D copy_rom1STB R12, @(R13, R0)CMP #0, R3BEQ:D copy_rom_endcopy_rom2:ADD #-4, R13LD @(R13, R1), R12BGT:D copy_rom2ST R12, @(R13, R0)copy_rom_end:ClearRCwatchdog;=========================================================================================; 7.12 C library initialization;=========================================================================================#if CLIBINIT == ONCALL32 __stream_init, r12 ; initialise library#endif;=========================================================================================; 7.13 call C++ constructors;=========================================================================================#if CPLUSPLUS == ONLDI #___call_dtors, r4CALL32 _atexit, r12LDI #EXT_CTOR_DTOR, r8LDI #EXT_CTOR_DTOR + sizeof(EXT_CTOR_DTOR), r9CMP r9, r8BEQ L1L0:LD @r8, r10CALL:D @r10ADD #4, r8CMP r9, r8BC L0L1:#endifstart_main:;=========================================================================================; 7.14 call main routine;=========================================================================================ClearRCwatchdog ; clear harware watchdogLDI:8 #0, r4 ; Set the 1st parameter for main to 0.CALL32:d _main, r12LDI:8 #0, r5 ; Set the 2nd parameter for main to 0.#if CLIBINIT == ONCALL32 _exit, r12__exit:#endif#if CPLUSPLUS == ON__abort:#endif;=========================================================================================; 7.15 Return from main function;=========================================================================================end:BRA end.end __start
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