mirror of
https://github.com/MiSTer-devel/QL_MiSTer.git
synced 2026-04-19 03:04:54 +00:00
106 lines
2.9 KiB
Verilog
106 lines
2.9 KiB
Verilog
//
|
|
// ipc.v
|
|
//
|
|
// Sinclair QL for the MiST
|
|
// https://github.com/mist-devel
|
|
//
|
|
// Copyright (c) 2015 Till Harbaum <till@harbaum.org>
|
|
//
|
|
// This source file is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published
|
|
// by the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This source file 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 more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
module ipc (
|
|
input reset,
|
|
input clk,
|
|
input ce_11m,
|
|
|
|
// synchronous serial connection
|
|
output comctrl,
|
|
input comdata_in,
|
|
output comdata_out,
|
|
|
|
output audio,
|
|
output [1:0] ipl,
|
|
|
|
input [4:0] js0,
|
|
input [4:0] js1,
|
|
|
|
input [10:0] ps2_key,
|
|
|
|
input ps2_kbd_clk,
|
|
input ps2_kbd_data
|
|
);
|
|
|
|
// ---------------------------------------------------------------------------------
|
|
// -------------------------------------- KBD --------------------------------------
|
|
// ---------------------------------------------------------------------------------
|
|
|
|
wire [63:0] kbd_matrix;
|
|
|
|
keyboard keyboard (
|
|
.reset ( reset ),
|
|
.clk ( clk ),
|
|
.ce_11m ( ce_11m ),
|
|
|
|
.ps2_key ( ps2_key ),
|
|
|
|
.js0 ( js0 ),
|
|
.js1 ( js1 ),
|
|
|
|
.matrix ( kbd_matrix )
|
|
);
|
|
|
|
// ---------------------------------------------------------------------------------
|
|
// -------------------------------------- 8049 -------------------------------------
|
|
// ---------------------------------------------------------------------------------
|
|
|
|
assign audio = t8049_p2_o[1];
|
|
assign ipl = t8049_p2_o[3:2];
|
|
|
|
wire [7:0] t8049_p1_o;
|
|
wire [7:0] t8049_db_i;
|
|
|
|
wire [7:0] t8049_p2_o;
|
|
wire [7:0] t8049_p2_i = { comdata_out && comdata_in, 7'b0000000 };
|
|
|
|
assign comdata_out = t8049_p2_o[7];
|
|
|
|
t8049_notri #(0) t8049 (
|
|
.xtal_i ( clk ),
|
|
.xtal_en_i ( ce_11m ),
|
|
.reset_n_i ( !reset ),
|
|
.t0_i ( 1'b0 ),
|
|
.t1_i ( 1'b0 ),
|
|
.int_n_i ( 1'b1 ),
|
|
.wr_n_o ( comctrl ),
|
|
.ea_i ( 1'b0 ),
|
|
.db_i ( t8049_db_i ),
|
|
.p1_i ( 8'h00 ),
|
|
.p1_o ( t8049_p1_o ),
|
|
.p2_i ( t8049_p2_i ),
|
|
.p2_o ( t8049_p2_o )
|
|
);
|
|
|
|
assign t8049_db_i =
|
|
(t8049_p1_o[0]?kbd_matrix[ 7: 0]:8'h00)|
|
|
(t8049_p1_o[1]?kbd_matrix[15: 8]:8'h00)|
|
|
(t8049_p1_o[2]?kbd_matrix[23:16]:8'h00)|
|
|
(t8049_p1_o[3]?kbd_matrix[31:24]:8'h00)|
|
|
(t8049_p1_o[4]?kbd_matrix[39:32]:8'h00)|
|
|
(t8049_p1_o[5]?kbd_matrix[47:40]:8'h00)|
|
|
(t8049_p1_o[6]?kbd_matrix[55:48]:8'h00)|
|
|
(t8049_p1_o[7]?kbd_matrix[63:56]:8'h00);
|
|
|
|
endmodule
|