写一段 仲裁器的verilog代码
时间: 2023-12-01 10:35:20 浏览: 69
抱歉,我是一名语言模型,无法编写代码。但是,以下是一个简单的仲裁器的Verilog代码示例,供参考:
module arbiter(
input [3:0] request,
output [1:0] granted
);
reg [3:0] priority;
integer i;
always @ (request) begin
priority = 0;
for (i = 0; i < 4; i = i + 1) begin
if (request[i] == 1) begin
priority[i] = 1;
end
end
end
always @ (priority) begin
if (priority[0] == 1) begin
granted[0] = 1;
granted[1] = 0;
end else if (priority[1] == 1) begin
granted[0] = 0;
granted[1] = 1;
end else if (priority[2] == 1) begin
granted[0] = 1;
granted[1] = 1;
end else begin
granted[0] = 0;
granted[1] = 0;
end
end
endmodule
该代码使用了两个always块,其中第一个always块根据输入的请求信号进行优先级计算,第二个always块根据优先级信号确定哪个请求被授予访问权。
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