diff options
Diffstat (limited to 'techlibs/common/stdcells.v')
| -rw-r--r-- | techlibs/common/stdcells.v | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/techlibs/common/stdcells.v b/techlibs/common/stdcells.v index d861d796..0a7d10fb 100644 --- a/techlibs/common/stdcells.v +++ b/techlibs/common/stdcells.v @@ -1397,6 +1397,55 @@ endmodule // -------------------------------------------------------- +module \$sr (SET, CLR, Q); + +parameter WIDTH = 0; +parameter SET_POLARITY = 1'b1; +parameter CLR_POLARITY = 1'b1; + +input [WIDTH-1:0] SET, CLR; +output reg [WIDTH-1:0] Q; + +genvar i; +generate + if (SET_POLARITY == 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_SR_NN_ ff ( + .S(SET[i]), + .R(CLR[i]), + .Q(Q[i]) + ); + end + if (SET_POLARITY == 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_SR_NP_ ff ( + .S(SET[i]), + .R(CLR[i]), + .Q(Q[i]) + ); + end + if (SET_POLARITY != 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_SR_PN_ ff ( + .S(SET[i]), + .R(CLR[i]), + .Q(Q[i]) + ); + end + if (SET_POLARITY != 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_SR_PP_ ff ( + .S(SET[i]), + .R(CLR[i]), + .Q(Q[i]) + ); + end +endgenerate + +endmodule + +// -------------------------------------------------------- + module \$dff (CLK, D, Q); parameter WIDTH = 1; @@ -1520,3 +1569,135 @@ endmodule // -------------------------------------------------------- +module \$dffsr (CLK, SET, CLR, D, Q); + +parameter WIDTH = 0; +parameter CLK_POLARITY = 1'b1; +parameter SET_POLARITY = 1'b1; +parameter CLR_POLARITY = 1'b1; + +input CLK; +input [WIDTH-1:0] SET, CLR, D; +output reg [WIDTH-1:0] Q; + +genvar i; +generate + if (CLK_POLARITY == 0 && SET_POLARITY == 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_NNN_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY == 0 && SET_POLARITY == 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_NNP_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY == 0 && SET_POLARITY != 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_NPN_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY == 0 && SET_POLARITY != 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_NPP_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY != 0 && SET_POLARITY == 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_PNN_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY != 0 && SET_POLARITY == 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_PNP_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY != 0 && SET_POLARITY != 0 && CLR_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_PPN_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end + if (CLK_POLARITY != 0 && SET_POLARITY != 0 && CLR_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DFFSR_PPP_ ff ( + .C(CLK[i]), + .S(SET[i]), + .R(CLR[i]), + .D(D[i]), + .Q(Q[i]) + ); + end +endgenerate + +endmodule + +// -------------------------------------------------------- + +module \$dlatch (EN, D, Q); + +parameter WIDTH = 0; +parameter EN_POLARITY = 1'b1; + +input EN; +input [WIDTH-1:0] D; +output reg [WIDTH-1:0] Q; + +genvar i; +generate + if (EN_POLARITY == 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DLATCH_N_ ff ( + .E(EN), + .D(D[i]), + .Q(Q[i]) + ); + end + if (EN_POLARITY != 0) + for (i = 0; i < WIDTH; i = i + 1) begin:V + \$_DLATCH_P_ ff ( + .E(EN), + .D(D[i]), + .Q(Q[i]) + ); + end +endgenerate + +endmodule + +// -------------------------------------------------------- + |