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-- $Id: nexys2lib.vhd 338 2010-11-13 22:19:25Z mueller $
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--
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-- Copyright 2010- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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--
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-- This program is free software; you may redistribute and/or modify it under
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-- the terms of the GNU General Public License as published by the Free
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-- Software Foundation, either version 2, or at your option any later version.
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--
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-- This program is distributed in the hope that it will be useful, but
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-- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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-- for complete details.
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--
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------------------------------------------------------------------------------
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-- Package Name: nexys2lib
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-- Description: Nexys 2 components
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--
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-- Dependencies: -
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-- Tool versions: xst 11.4, 12.1; ghdl 0.26-0.29
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--
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-- Revision History:
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-- Date Rev Version Comment
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-- 2010-11-13 338 1.0.2 add O_CLKSYS to aif's (DCM derived system clock)
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-- 2010-11-06 336 1.0.4 rename input pin CLK -> I_CLK50
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-- 2010-05-28 295 1.0.3 use _ADV_N also for n2_cram_dummy
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-- 2010-05-23 294 1.0.2 add n2_cram_dummy;
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-- 2010-05-23 293 1.0.1 use _ADV_N rather _ADV; add generic for memctl
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-- 2010-05-21 292 1.0 Initial version
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------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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use work.slvtypes.all;
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package nexys2lib is
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component nexys2_aif is -- NEXYS 2, abstract iface, base
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port (
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I_CLK50 : in slbit; -- 50 MHz board clock
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O_CLKSYS : out slbit; -- DCM derived system clock
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I_RXD : in slbit; -- receive data (board view)
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O_TXD : out slbit; -- transmit data (board view)
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I_SWI : in slv8; -- s3 switches
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I_BTN : in slv4; -- s3 buttons
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O_LED : out slv8; -- s3 leds
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O_ANO_N : out slv4; -- 7 segment disp: anodes (act.low)
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O_SEG_N : out slv8; -- 7 segment disp: segments (act.low)
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O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
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O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
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O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
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O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
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O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
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O_MEM_CLK : out slbit; -- cram: clock
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O_MEM_CRE : out slbit; -- cram: command register enable
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I_MEM_WAIT : in slbit; -- cram: mem wait
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O_FLA_CE_N : out slbit; -- flash ce.. (act.low)
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O_MEM_ADDR : out slv23; -- cram: address lines
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IO_MEM_DATA : inout slv16 -- cram: data lines
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);
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end component;
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component nexys2_fusp_aif is -- NEXYS 2, abstract iface, base+fusp
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port (
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I_CLK50 : in slbit; -- 50 MHz board clock
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O_CLKSYS : out slbit; -- DCM derived system clock
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I_RXD : in slbit; -- receive data (board view)
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O_TXD : out slbit; -- transmit data (board view)
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I_SWI : in slv8; -- s3 switches
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I_BTN : in slv4; -- s3 buttons
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O_LED : out slv8; -- s3 leds
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O_ANO_N : out slv4; -- 7 segment disp: anodes (act.low)
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O_SEG_N : out slv8; -- 7 segment disp: segments (act.low)
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O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
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O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
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O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
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O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
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O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
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O_MEM_CLK : out slbit; -- cram: clock
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O_MEM_CRE : out slbit; -- cram: command register enable
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I_MEM_WAIT : in slbit; -- cram: mem wait
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O_FLA_CE_N : out slbit; -- flash ce.. (act.low)
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O_MEM_ADDR : out slv23; -- cram: address lines
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IO_MEM_DATA : inout slv16; -- cram: data lines
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O_FUSP_RTS_N : out slbit; -- fusp: rs232 rts_n
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I_FUSP_CTS_N : in slbit; -- fusp: rs232 cts_n
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I_FUSP_RXD : in slbit; -- fusp: rs232 rx
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O_FUSP_TXD : out slbit -- fusp: rs232 tx
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);
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end component;
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component n2_cram_dummy is -- CRAM protection dummy
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port (
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O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
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O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
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O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
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O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
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O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
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O_MEM_CLK : out slbit; -- cram: clock
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O_MEM_CRE : out slbit; -- cram: command register enable
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I_MEM_WAIT : in slbit; -- cram: mem wait
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O_FLA_CE_N : out slbit; -- flash ce.. (act.low)
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O_MEM_ADDR : out slv23; -- cram: address lines
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IO_MEM_DATA : inout slv16 -- cram: data lines
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);
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end component;
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component n2_cram_memctl_as is -- CRAM driver (async+page mode)
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generic (
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READ0DELAY : positive := 2; -- read word 0 delay in clock cycles
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READ1DELAY : positive := 2; -- read word 1 delay in clock cycles
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WRITEDELAY : positive := 3); -- write delay in clock cycles
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port (
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CLK : in slbit; -- clock
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RESET : in slbit; -- reset
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REQ : in slbit; -- request
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WE : in slbit; -- write enable
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BUSY : out slbit; -- controller busy
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ACK_R : out slbit; -- acknowledge read
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ACK_W : out slbit; -- acknowledge write
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ACT_R : out slbit; -- signal active read
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ACT_W : out slbit; -- signal active write
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ADDR : in slv22; -- address (32 bit word address)
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BE : in slv4; -- byte enable
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DI : in slv32; -- data in (memory view)
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DO : out slv32; -- data out (memory view)
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O_MEM_CE_N : out slbit; -- cram: chip enable (act.low)
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O_MEM_BE_N : out slv2; -- cram: byte enables (act.low)
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O_MEM_WE_N : out slbit; -- cram: write enable (act.low)
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O_MEM_OE_N : out slbit; -- cram: output enable (act.low)
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O_MEM_ADV_N : out slbit; -- cram: address valid (act.low)
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O_MEM_CLK : out slbit; -- cram: clock
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O_MEM_CRE : out slbit; -- cram: command register enable
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I_MEM_WAIT : in slbit; -- cram: mem wait
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O_FLA_CE_N : out slbit; -- flash ce.. (act.low)
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O_MEM_ADDR : out slv23; -- cram: address lines
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IO_MEM_DATA : inout slv16 -- cram: data lines
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);
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end component;
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end nexys2lib;
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