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greenpak4: Added GP_DCMPREF / GP_DCMPMUX

This commit is contained in:
Andrew Zonenberg 2016-12-14 14:14:26 +08:00
parent 01d8278e53
commit c77e6e6114
1 changed files with 23 additions and 0 deletions
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23
techlibs/greenpak4/cells_sim.v
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@ -132,6 +132,29 @@ module GP_DAC(input[7:0] DIN, input wire VREF, output reg VOUT);
endmodule
module GP_DCMPREF(output OUT)
parameter[7:0] REF_VAL = 8'h00;
wire[7:0] OUT = REF_VAL;
endmodule
module GP_DCMPMUX(input SEL, input IN0, input IN1, input IN2, input IN3, output OUT)
wire[1:0] SEL;
wire[7:0] IN0;
wire[7:0] IN1;
wire[7:0] IN2;
wire[7:0] IN3;
reg[7:0] OUT;
always @(*) begin
case(SEL)
2'b00: OUT <= IN0;
2'b10: OUT <= IN1;
2'b01: OUT <= IN2;
2'b11: OUT <= IN3;
end
end
endmodule
module GP_DELAY(input IN, output reg OUT);
parameter DELAY_STEPS = 1;