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pio_egmreset.v
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pio_egmreset.v
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//Legal Notice: (C)2014 Altera Corporation. All rights reserved. Your
//use of Altera Corporation's design tools, logic functions and other
//software and tools, and its AMPP partner logic functions, and any
//output files any of the foregoing (including device programming or
//simulation files), and any associated documentation or information are
//expressly subject to the terms and conditions of the Altera Program
//License Subscription Agreement or other applicable license agreement,
//including, without limitation, that your use is for the sole purpose
//of programming logic devices manufactured by Altera and sold by Altera
//or its authorized distributors. Please refer to the applicable
//agreement for further details.
// synthesis translate_off
`timescale 1ns / 1ps
// synthesis translate_on
// turn off superfluous verilog processor warnings
// altera message_level Level1
// altera message_off 10034 10035 10036 10037 10230 10240 10030
module pio_egmreset (
// inputs:
address,
chipselect,
clk,
reset_n,
write_n,
writedata,
// outputs:
out_port,
readdata
)
;
output out_port;
output readdata;
input [ 1: 0] address;
input chipselect;
input clk;
input reset_n;
input write_n;
input writedata;
wire clk_en;
reg data_out;
wire out_port;
wire read_mux_out;
wire readdata;
assign clk_en = 1;
//s1, which is an e_avalon_slave
assign read_mux_out = {1 {(address == 0)}} & data_out;
always @(posedge clk or negedge reset_n)
begin
if (reset_n == 0)
data_out <= 0;
else if (chipselect && ~write_n && (address == 0))
data_out <= writedata;
end
assign readdata = read_mux_out;
assign out_port = data_out;
endmodule