w11 - vhd 0.794
W11 CPU core and support modules
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sys_conf.vhd
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1-- $Id: sys_conf.vhd 1181 2019-07-08 17:00:50Z mueller $
2-- SPDX-License-Identifier: GPL-3.0-or-later
3-- Copyright 2011-2016 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
4--
5------------------------------------------------------------------------------
6-- Package Name: sys_conf
7-- Description: Definitions for sys_tst_sram_n3 (for synthesis)
8--
9-- Dependencies: -
10-- Tool versions: xst 13.1-14.7; ghdl 0.29-0.33
11-- Revision History:
12-- Date Rev Version Comment
13-- 2016-07-10 786 1.2 memctl with page mode, new read1delay
14-- 2013-10-06 538 1.1 pll support, use clksys_vcodivide ect
15-- 2011-11-27 433 1.0 Initial version
16------------------------------------------------------------------------------
17
18library ieee;
19use ieee.std_logic_1164.all;
20
21use work.slvtypes.all;
22use work.nxcramlib.all;
23
24package sys_conf is
25
26 constant sys_conf_clksys_vcodivide : positive := 1;
27 constant sys_conf_clksys_vcomultiply : positive := 1; -- dcm 100 MHz
28 constant sys_conf_clksys_outdivide : positive := 1; -- sys 100 MHz
29 constant sys_conf_clksys_gentype : string := "DCM";
30
31 constant sys_conf_ser2rri_defbaud : integer := 115200; -- default 115k baud
32
33 -- derived constants
34
35 constant sys_conf_clksys : integer :=
38 constant sys_conf_clksys_mhz : integer := sys_conf_clksys/1000000;
39
40 constant sys_conf_ser2rri_cdinit : integer :=
42
43 constant sys_conf_memctl_read0delay : positive :=
44 cram_read0delay(sys_conf_clksys_mhz);
45 constant sys_conf_memctl_read1delay : positive :=
46 cram_read1delay(sys_conf_clksys_mhz);
47 constant sys_conf_memctl_writedelay : positive :=
48 cram_writedelay(sys_conf_clksys_mhz);
49
50end package sys_conf;
positive := 8 sys_conf_clksys_vcomultiply
integer :=(( 100000000/ sys_conf_clksys_vcodivide)* sys_conf_clksys_vcomultiply)/ sys_conf_clksys_outdivide sys_conf_clksys
integer :=( sys_conf_clkser/ sys_conf_ser2rri_defbaud)- 1 sys_conf_ser2rri_cdinit
Definition: sys_conf.vhd:48
integer := sys_conf_clksys/ 1000000 sys_conf_clksys_mhz
positive := 1 sys_conf_clksys_vcodivide
positive := cram_writedelay( sys_conf_clksys_mhz ) sys_conf_memctl_writedelay
Definition: sys_conf.vhd:48
positive := 10 sys_conf_clksys_outdivide
string := "MMCM" sys_conf_clksys_gentype
integer := 115200 sys_conf_ser2rri_defbaud
Definition: sys_conf.vhd:34
positive := cram_read1delay( sys_conf_clksys_mhz ) sys_conf_memctl_read1delay
Definition: sys_conf.vhd:46
positive := cram_read0delay( sys_conf_clksys_mhz ) sys_conf_memctl_read0delay
Definition: sys_conf.vhd:44