| |
| module top(input clk, stb, di, output do); |
| localparam integer DIN_N = 160; |
| localparam integer DOUT_N = 160; |
| |
| reg [DIN_N-1:0] din; |
| wire [DOUT_N-1:0] dout; |
| |
| reg [DIN_N-1:0] din_shr; |
| reg [DOUT_N-1:0] dout_shr; |
| |
| always @(posedge clk) begin |
| din_shr <= {din_shr, di}; |
| dout_shr <= {dout_shr, din_shr[DIN_N-1]}; |
| if (stb) begin |
| din <= din_shr; |
| dout_shr <= dout; |
| end |
| end |
| |
| assign do = dout_shr[DOUT_N-1]; |
| |
| roi roi ( |
| .clk(clk), |
| .din(din), |
| .dout(dout) |
| ); |
| endmodule |
| |
| module roi(input clk, input [159:0] din, output [159:0] dout); |
| my_MMCM |
| #( |
| .LOC("MMCM_X0Y5") |
| ) |
| inst_0 ( |
| .clk(clk), |
| .din(din[ 0 +: 14]), |
| .dout(dout[ 0 +: 2]) |
| ); |
| endmodule |
| |
| // --------------------------------------------------------------------- |
| module my_MMCM (input clk, input [13:0] din, output [1:0] dout); |
| |
| parameter LOC = ""; |
| |
| (* LOC=LOC *) |
| MMCME4_BASE #( |
| .BANDWIDTH("OPTIMIZED"), // Jitter programming |
| .CLKFBOUT_MULT_F(8.0), // Multiply value for all CLKOUT |
| .CLKFBOUT_PHASE(0.0), // Phase offset in degrees of CLKFB |
| .CLKIN1_PERIOD(10.0), // Input clock period in ns to ps resolution (i.e. 33.333 is 30 MHz). |
| .CLKOUT0_DIVIDE_F(1.0), // Divide amount for CLKOUT0 |
| .CLKOUT0_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT0 |
| .CLKOUT0_PHASE(0.0), // Phase offset for CLKOUT0 |
| .CLKOUT1_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT1_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT1_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .CLKOUT2_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT2_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT2_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .CLKOUT3_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT3_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT3_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .CLKOUT4_CASCADE("FALSE"), // Divide amount for CLKOUT (1-128) |
| .CLKOUT4_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT4_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT4_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .CLKOUT5_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT5_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT5_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .CLKOUT6_DIVIDE(1), // Divide amount for CLKOUT (1-128) |
| .CLKOUT6_DUTY_CYCLE(0.5), // Duty cycle for CLKOUT outputs (0.001-0.999). |
| .CLKOUT6_PHASE(0.0), // Phase offset for CLKOUT outputs (-360.000-360.000). |
| .DIVCLK_DIVIDE(1), // Master division value |
| .IS_CLKFBIN_INVERTED(1'b0), // Optional inversion for CLKFBIN |
| .IS_CLKIN1_INVERTED(1'b0), // Optional inversion for CLKIN1 |
| .IS_PWRDWN_INVERTED(1'b0), // Optional inversion for PWRDWN |
| .IS_RST_INVERTED(1'b0), // Optional inversion for RST |
| .REF_JITTER1(0.0), // Reference input jitter in UI (0.000-0.999). |
| .STARTUP_WAIT("FALSE") // Delays DONE until MMCM is locked |
| ) |
| MMCME4_BASE_inst ( |
| .CLKFBOUT(dout[0]), // 1-bit output: Feedback clock pin to the MMCM |
| .CLKFBOUTB(dout[1]), // 1-bit output: Inverted CLKFBOUT |
| .CLKOUT0(dout[2]), // 1-bit output: CLKOUT0 |
| .CLKOUT0B(dout[3]), // 1-bit output: Inverted CLKOUT0 |
| .CLKOUT1(dout[4]), // 1-bit output: CLKOUT1 |
| .CLKOUT1B(dout[5]), // 1-bit output: Inverted CLKOUT1 |
| .CLKOUT2(dout[6]), // 1-bit output: CLKOUT2 |
| .CLKOUT2B(dout[7]), // 1-bit output: Inverted CLKOUT2 |
| .CLKOUT3(dout[8]), // 1-bit output: CLKOUT3 |
| .CLKOUT3B(dout[9]), // 1-bit output: Inverted CLKOUT3 |
| .CLKOUT4(dout[10]), // 1-bit output: CLKOUT4 |
| .CLKOUT5(dout[11]), // 1-bit output: CLKOUT5 |
| .CLKOUT6(dout[12]), // 1-bit output: CLKOUT6 |
| .LOCKED(dout[13]), // 1-bit output: LOCK |
| .CLKFBIN(), // 1-bit input: Feedback clock pin to the MMCM |
| .CLKIN1(clk), // 1-bit input: Primary clock |
| .PWRDWN(din[0]), // 1-bit input: Power-down |
| .RST(din[1]) // 1-bit input: Reset |
| ); |
| endmodule |