# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf # https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf # NB: Inputs/Outputs must be ordered alphabetically # (with exceptions for carry in/out) # Average across F7[AB]MUX # Inputs: I0 I1 S0 # Outputs: O F7MUX 1 1 3 1 204 208 286 # Inputs: I0 I1 S0 # Outputs: O MUXF8 2 1 3 1 104 94 273 # Box containing MUXF7.[AB] + MUXF8 # Inputs: I0 I1 I2 I3 S0 S1 # Outputs: O $__MUXF78 3 1 6 1 294 297 311 317 390 273 # CARRY4 + CARRY4_[ABCD]X # Inputs: CYINIT DI0 DI1 DI2 DI3 S0 S1 S2 S3 CI # Outputs: O0 O1 O2 O3 CO0 CO1 CO2 CO3 # (NB: carry chain input/output must be last # input/output and the entire bus has been # moved there overriding the otherwise # alphabetical ordering) CARRY4 4 1 10 8 482 - - - - 223 - - - 222 598 407 - - - 400 205 - - 334 584 556 537 - - 523 558 226 - 239 642 615 596 438 - 582 618 330 227 313 536 379 - - - 340 - - - 271 494 465 445 - - 433 469 - - 157 592 540 520 356 - 512 548 292 - 228 580 526 507 398 385 508 528 378 380 114 # SLICEM/A6LUT # Inputs: A0 A1 A2 A3 A4 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 WCLK WE # Outputs: DPO SPO RAM32X1D 5 0 13 2 - - - - - - 631 472 407 238 127 - - 631 472 407 238 127 - - - - - - - - # SLICEM/A6LUT # Inputs: A0 A1 A2 A3 A4 A5 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 DPRA5 WCLK WE # Outputs: DPO SPO RAM64X1D 6 0 15 2 - - - - - - - 642 631 472 407 238 127 - - 642 631 472 407 238 127 - - - - - - - - - # SLICEM/A6LUT + F7[AB]MUX # Inputs: A0 A1 A2 A3 A4 A5 A6 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 DPRA5 DPRA6 WCLK WE # Outputs: DPO SPO RAM128X1D 7 0 17 2 - - - - - - - - 1009 998 839 774 605 494 450 - - 1047 1036 877 812 643 532 478 - - - - - - - - - - # Box to emulate async behaviour of FD[CP]* # Inputs: A S # Outputs: Y $__ABC_ASYNC 1000 0 2 1 0 764 # The following FD*.{CE,R,CLR,PRE) are offset by 46ps to # reflect the -46ps Tsu # https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L237-L251 # https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L265-L277 # Inputs: C CE D R \$pastQ # Outputs: Q FDRE 1001 1 5 1 0 151 0 446 0 # Inputs: C CE D R \$pastQ # Outputs: Q FDRE_1 1002 1 5 1 0 151 0 446 0 # Inputs: C CE CLR D \$pastQ # Outputs: Q FDCE 1003 1 5 1 0 151 806 0 0 # Inputs: C CE CLR D \$pastQ # Outputs: Q FDCE_1 1004 1 5 1 0 151 806 0 0 # Inputs: C CE D PRE \$pastQ # Outputs: Q FDPE 1005 1 5 1 0 151 0 806 0 # Inputs: C CE D PRE \$pastQ # Outputs: Q FDPE_1 1006 1 5 1 0 151 0 806 0