pdp11_hio70.vhd

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-- $Id: pdp11_hio70.vhd 1181 2019-07-08 17:00:50Z mueller $
-- SPDX-License-Identifier: GPL-3.0-or-later
-- Copyright 2015-2018 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
--
------------------------------------------------------------------------------
-- Module Name:    pdp11_hio70 - syn
-- Description:    pdp11: hio led and dsp for sys70
--
-- Dependencies:   pdp11_statleds
--                 pdp11_ledmux
--                 pdp11_dspmux
-- Test bench:     -
-- Target Devices: generic
-- Tool versions:  ise 14.7; viv 2014.4-2018.2; ghdl 0.31-0.34
--
-- Revision History: 
-- Date         Rev Version  Comment
-- 2018-10-07  1054   1.1    use DM_STAT_EXP instead of DM_STAT_DP
-- 2015-05-01   672   1.0    Initial version (extracted from sys_w11a_*)
------------------------------------------------------------------------------
 
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
 
use work.slvtypes.all;
use work.pdp11.all;
 
-- ----------------------------------------------------------------------------
 
entity pdp11_hio70 is                   -- hio led and dsp for sys70
  generic (
    LWIDTH : positive := 8;             -- led width
    DCWIDTH : positive := 2);           -- digit counter width (2 or 3)
  port (
    SEL_LED : in slbit;                 -- led select (0=stat;1=dr)
    SEL_DSP : in slv2;                  -- dsp select
    MEM_ACT_R : in slbit;               -- memory active read
    MEM_ACT_W : in slbit;               -- memory active write
    CP_STAT : in cp_stat_type;          -- console port status
    DM_STAT_EXP : in dm_stat_exp_type;  -- debug and monitor - exports
    ABCLKDIV : in slv16;                -- serport clock divider
    DISPREG : in slv16;                 -- display register
    LED : out slv(LWIDTH-1 downto 0);   -- hio leds
    DSP_DAT : out slv(4*(2**DCWIDTH)-1 downto 0)  -- display data
  );
end pdp11_hio70;
 
architecture syn of pdp11_hio70 is
 
  signal STATLEDS :  slv8 := (others=>'0');
  
begin
 
  LED_CPU : pdp11_statleds
    port map (
      MEM_ACT_R   => MEM_ACT_R,
      MEM_ACT_W   => MEM_ACT_W,
      CP_STAT     => CP_STAT,
      DM_STAT_EXP => DM_STAT_EXP,
      STATLEDS    => STATLEDS
    );
  
  LED_MUX : pdp11_ledmux
    generic map (
      LWIDTH => LWIDTH)
    port map (
      SEL         => SEL_LED,
      STATLEDS    => STATLEDS,
      DM_STAT_EXP => DM_STAT_EXP,
      LED         => LED
    );
    
  DSP_MUX : pdp11_dspmux
    generic map (
      DCWIDTH => DCWIDTH)
    port map (
      SEL         => SEL_DSP,
      ABCLKDIV    => ABCLKDIV,
      DM_STAT_EXP => DM_STAT_EXP,
      DISPREG     => DISPREG,
      DSP_DAT     => DSP_DAT
    );
    
end syn;