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-- $Id: rlinklib.vhd 509 2013-04-21 20:46:20Z mueller $ -- -- Copyright 2007-2013 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de> -- -- This program is free software; you may redistribute and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation, either version 2, or at your option any later version. -- -- This program is distributed in the hope that it will be useful, but -- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for complete details. -- ------------------------------------------------------------------------------ -- Package Name: rlinklib -- Description: Definitions for rlink interface and bus entities -- -- Dependencies: - -- Tool versions: xst 8.2, 9.1, 9.2, 11.4, 12.1, 13.3; ghdl 0.18-0.29 -- -- Revision History: -- Date Rev Version Comment -- 2013-04-21 509 3.3.2 add rlb_moni record definition -- 2012-12-29 466 3.3.1 add rlink_rlbmux -- 2011-12-23 444 3.3 CLK_CYCLE now integer -- 2011-12-21 442 3.2.1 retire old, deprecated interfaces -- 2011-12-09 437 3.2 add rlink_core8 -- 2011-11-18 427 3.1.3 now numeric_std clean -- 2010-12-25 348 3.1.2 drop RL_FLUSH support, add RL_MONI for rlink_core; -- new rlink_serport interface; -- rename rlink_core_serport->rlink_base_serport -- 2010-12-24 347 3.1.1 rename: CP_*->RL->* -- 2010-12-22 346 3.1 rename: [cd]crc->[cd]err, ioto->rbnak, ioerr->rberr -- 2010-12-04 343 3.0 move rbus components to rbus/rblib; renames -- rri_ -> rlink and c_rri -> c_rlink; -- 2010-06-18 306 2.5.1 rename rbus data fields to _rbf_ -- 2010-06-06 302 2.5 use sop/eop framing instead of soc+chaining -- 2010-06-03 300 2.1.5 use FAWIDTH=5 for rri_serport -- 2010-05-02 287 2.1.4 ren CE_XSEC->CE_INT,RP_STAT->RB_STAT,AP_LAM->RB_LAM -- drop RP_IINT from interfaces; drop RTSFLUSH generic -- 2010-05-01 285 2.1.3 remove rri_rb_rpcompat, now obsolete -- 2010-04-18 279 2.1.2 rri_core_serport: drop RTSFBUF generic -- 2010-04-10 275 2.1.1 add rri_core_serport -- 2010-04-03 274 2.1 add CP_FLUSH for rri_core, rri_serport; -- CE_USEC, RTSFLUSH, CTS_N, RTS_N for rri_serport -- 2008-08-24 162 2.0 all with new rb_mreq/rb_sres interface -- 2008-08-22 161 1.3 renamed rri_rbres_ -> rb_sres_; drop rri_[24]rp -- 2008-02-16 116 1.2.1 added rri_wreg(rw|w|r)_3 -- 2008-01-20 113 1.2 added rb_[mreq|sres]; _rbres_or_*; _rb_rpcompat -- 2007-11-24 98 1.1 added RP_IINT for rri_core. -- 2007-09-09 81 1.0 Initial version ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; use work.slvtypes.all; use work.rblib.all; use work.serportlib.all; package rlinklib is constant c_rlink_cpref : slv4 := "1000"; -- default comma prefix constant c_rlink_ncomm : positive := 4; -- number commas (sop,eop,nak,attn) constant c_rlink_dat_idle : slv9 := "100000000"; constant c_rlink_dat_sop : slv9 := "100000001"; constant c_rlink_dat_eop : slv9 := "100000010"; constant c_rlink_dat_nak : slv9 := "100000011"; constant c_rlink_dat_attn : slv9 := "100000100"; constant c_rlink_cmd_rreg : slv3 := "000"; constant c_rlink_cmd_rblk : slv3 := "001"; constant c_rlink_cmd_wreg : slv3 := "010"; constant c_rlink_cmd_wblk : slv3 := "011"; constant c_rlink_cmd_stat : slv3 := "100"; constant c_rlink_cmd_attn : slv3 := "101"; constant c_rlink_cmd_init : slv3 := "110"; constant c_rlink_iint_rbf_anena: integer := 15; -- anena flag constant c_rlink_iint_rbf_itoena: integer := 14; -- itoena flag subtype c_rlink_iint_rbf_itoval is integer range 7 downto 0; -- itoval value subtype c_rlink_cmd_rbf_seq is integer range 7 downto 3; -- sequence number subtype c_rlink_cmd_rbf_code is integer range 2 downto 0; -- command code subtype c_rlink_stat_rbf_stat is integer range 7 downto 5; -- ext status bits constant c_rlink_stat_rbf_attn: integer := 4; -- attention flags set constant c_rlink_stat_rbf_cerr: integer := 3; -- command error constant c_rlink_stat_rbf_derr: integer := 2; -- data error constant c_rlink_stat_rbf_rbnak: integer := 1; -- rbus no ack or timeout constant c_rlink_stat_rbf_rberr: integer := 0; -- rbus err bit set type rl_moni_type is record -- rlink_core monitor port eop : slbit; -- eop send in last cycle attn : slbit; -- attn send in last cycle lamp : slbit; -- attn (lam) pending end record rl_moni_type; constant rl_moni_init : rl_moni_type := ('0','0','0'); -- eop,attn,lamp type rlb_moni_type is record -- rlink 8b monitor port rxval : slbit; -- data in valid rxhold : slbit; -- data in hold txena : slbit; -- data out enable txbusy : slbit; -- data out busy end record rlb_moni_type; constant rlb_moni_init : rlb_moni_type := ('0','0','0','0'); -- rxval,rxhold,txena,txbusy -- ise 13.1 xst can bug check if generic defaults in a package are defined via -- 'slv(to_unsigned())'. The conv_ construct prior to numeric_std was ok. -- As workaround the ibus default addresses are defined here as constant. constant rbaddr_rlink_serport : slv8 := slv(to_unsigned(2#11111110#,8)); -- this definition logically belongs into the 'for test benches' section' -- must be here because it is needed as generic default in rlink_core8 -- simbus sb_cntl field usage for rlink constant sbcntl_sbf_rlmon : integer := 15; component rlink_core is -- rlink core with 9bit iface generic ( ATOWIDTH : positive := 5; -- access timeout counter width ITOWIDTH : positive := 6); -- idle timeout counter width port ( CLK : in slbit; -- clock CE_INT : in slbit := '0'; -- rlink ito time unit clock enable RESET : in slbit; -- reset RL_DI : in slv9; -- rlink 9b: data in RL_ENA : in slbit; -- rlink 9b: data enable RL_BUSY : out slbit; -- rlink 9b: data busy RL_DO : out slv9; -- rlink 9b: data out RL_VAL : out slbit; -- rlink 9b: data valid RL_HOLD : in slbit; -- rlink 9b: data hold RL_MONI : out rl_moni_type; -- rlink: monitor port RB_MREQ : out rb_mreq_type; -- rbus: request RB_SRES : in rb_sres_type; -- rbus: response RB_LAM : in slv16; -- rbus: look at me RB_STAT : in slv3 -- rbus: status flags ); end component; component rlink_aif is -- rlink, abstract interface port ( CLK : in slbit; -- clock CE_INT : in slbit := '0'; -- rlink ito time unit clock enable RESET : in slbit :='0'; -- reset RL_DI : in slv9; -- rlink 9b: data in RL_ENA : in slbit; -- rlink 9b: data enable RL_BUSY : out slbit; -- rlink 9b: data busy RL_DO : out slv9; -- rlink 9b: data out RL_VAL : out slbit; -- rlink 9b: data valid RL_HOLD : in slbit := '0' -- rlink 9b: data hold ); end component; component rlink_core8 is -- rlink core with 8bit iface generic ( ATOWIDTH : positive := 5; -- access timeout counter width ITOWIDTH : positive := 6; -- idle timeout counter width CPREF : slv4 := c_rlink_cpref; -- comma prefix ENAPIN_RLMON : integer := sbcntl_sbf_rlmon; -- SB_CNTL for rlmon (-1=none) ENAPIN_RBMON : integer := sbcntl_sbf_rbmon); -- SB_CNTL for rbmon (-1=none) port ( CLK : in slbit; -- clock CE_INT : in slbit := '0'; -- rlink ito time unit clock enable RESET : in slbit; -- reset RLB_DI : in slv8; -- rlink 8b: data in RLB_ENA : in slbit; -- rlink 8b: data enable RLB_BUSY : out slbit; -- rlink 8b: data busy RLB_DO : out slv8; -- rlink 8b: data out RLB_VAL : out slbit; -- rlink 8b: data valid RLB_HOLD : in slbit; -- rlink 8b: data hold RL_MONI : out rl_moni_type; -- rlink: monitor port RB_MREQ : out rb_mreq_type; -- rbus: request RB_SRES : in rb_sres_type; -- rbus: response RB_LAM : in slv16; -- rbus: look at me RB_STAT : in slv3 -- rbus: status flags ); end component; component rlink_rlbmux is -- rlink rlb multiplexer port ( SEL : in slbit; -- port select (0:RLB<->P0; 1:RLB<->P1) RLB_DI : out slv8; -- rlb: data in RLB_ENA : out slbit; -- rlb: data enable RLB_BUSY : in slbit; -- rlb: data busy RLB_DO : in slv8; -- rlb: data out RLB_VAL : in slbit; -- rlb: data valid RLB_HOLD : out slbit; -- rlb: data hold P0_RXDATA : in slv8; -- p0: rx data P0_RXVAL : in slbit; -- p0: rx valid P0_RXHOLD : out slbit; -- p0: rx hold P0_TXDATA : out slv8; -- p0: tx data P0_TXENA : out slbit; -- p0: tx enable P0_TXBUSY : in slbit; -- p0: tx busy P1_RXDATA : in slv8; -- p1: rx data P1_RXVAL : in slbit; -- p1: rx valid P1_RXHOLD : out slbit; -- p1: rx hold P1_TXDATA : out slv8; -- p1: tx data P1_TXENA : out slbit; -- p1: tx enable P1_TXBUSY : in slbit -- p1: tx busy ); end component; -- -- core + concrete_interface combo's -- component rlink_sp1c is -- rlink_core8+serport_1clock combo generic ( ATOWIDTH : positive := 5; -- access timeout counter width ITOWIDTH : positive := 6; -- idle timeout counter width CPREF : slv4 := c_rlink_cpref; -- comma prefix IFAWIDTH : natural := 5; -- input fifo address width (0=none) OFAWIDTH : natural := 5; -- output fifo address width (0=none) ENAPIN_RLMON : integer := sbcntl_sbf_rlmon; -- SB_CNTL for rlmon (-1=none) ENAPIN_RBMON : integer := sbcntl_sbf_rbmon; -- SB_CNTL for rbmon (-1=none) CDWIDTH : positive := 13; -- clk divider width CDINIT : natural := 15); -- clk divider initial/reset setting port ( CLK : in slbit; -- clock CE_USEC : in slbit; -- 1 usec clock enable CE_MSEC : in slbit; -- 1 msec clock enable CE_INT : in slbit := '0'; -- rri ito time unit clock enable RESET : in slbit; -- reset ENAXON : in slbit; -- enable xon/xoff handling ENAESC : in slbit; -- enable xon/xoff escaping RXSD : in slbit; -- receive serial data (board view) TXSD : out slbit; -- transmit serial data (board view) CTS_N : in slbit := '0'; -- clear to send (act.low, board view) RTS_N : out slbit; -- request to send (act.low, board view) RB_MREQ : out rb_mreq_type; -- rbus: request RB_SRES : in rb_sres_type; -- rbus: response RB_LAM : in slv16; -- rbus: look at me RB_STAT : in slv3; -- rbus: status flags RL_MONI : out rl_moni_type; -- rlink_core: monitor port SER_MONI : out serport_moni_type -- serport: monitor port ); end component; -- -- components for use in test benches (not synthesizable) -- component rlink_mon is -- rlink monitor generic ( DWIDTH : positive := 9); -- data port width (8 or 9) port ( CLK : in slbit; -- clock CLK_CYCLE : in integer := 0; -- clock cycle number ENA : in slbit := '1'; -- enable monitor output RL_DI : in slv(DWIDTH-1 downto 0); -- rlink: data in RL_ENA : in slbit; -- rlink: data enable RL_BUSY : in slbit; -- rlink: data busy RL_DO : in slv(DWIDTH-1 downto 0); -- rlink: data out RL_VAL : in slbit; -- rlink: data valid RL_HOLD : in slbit -- rlink: data hold ); end component; component rlink_mon_sb is -- simbus wrap for rlink monitor generic ( DWIDTH : positive := 9; -- data port width (8 or 9) ENAPIN : integer := sbcntl_sbf_rlmon); -- SB_CNTL signal to use for enable port ( CLK : in slbit; -- clock RL_DI : in slv(DWIDTH-1 downto 0); -- rlink: data in RL_ENA : in slbit; -- rlink: data enable RL_BUSY : in slbit; -- rlink: data busy RL_DO : in slv(DWIDTH-1 downto 0); -- rlink: data out RL_VAL : in slbit; -- rlink: data valid RL_HOLD : in slbit -- rlink: data hold ); end component; end package rlinklib;