# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf # F7BMUX slower than F7AMUX # Inputs: I0 I1 S0 # Outputs: O F7BMUX 1 1 3 1 217 223 296 # Inputs: I0 I1 S0 # Outputs: O MUXF8 2 1 3 1 104 94 273 # CARRY4 + CARRY4_[ABCD]X # Inputs: S0 S1 S2 S3 CYINIT DI0 DI1 DI2 DI3 CI # Outputs: O0 O1 O2 O3 CO0 CO1 CO2 CO3 # (NB: carry chain input/output must be last input/output, # swapped with what normally would have been the last # output, here: CI <-> S, CO <-> O CARRY4 3 1 10 8 223 - - - 482 - - - - 222 400 205 - - 598 407 - - - 334 523 558 226 - 584 556 537 - - 239 582 618 330 227 642 615 596 438 - 313 340 - - - 536 379 - - - 271 433 469 - - 494 465 445 - - 157 512 548 292 - 592 540 520 356 - 228 508 528 378 380 580 526 507 398 385 114 # SLICEM/A6LUT # Inputs: A0 A1 A2 A3 A4 A5 D DPRA0 DPRA1 DPRA2 DPRA3 DPRA4 DPRA5 WCLK WE # Outputs: DPO SPO RAM64X1D 4 0 15 2 - - - - - - - 124 124 124 124 124 124 - - 124 124 124 124 124 124 - - - - - - 124 - - # 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 5 0 17 2 - - - - - - - - 314 314 314 314 314 314 292 - - 347 347 347 347 347 347 296 - - - - - - - - - - # Inputs: C CE D R # Outputs: Q FDRE 6 0 4 1 - - - - # Inputs: C CE D S # Outputs: Q FDSE 7 0 4 1 - - - - # Inputs: C CE CLR D # Outputs: Q FDCE 8 0 4 1 - - 404 - # Inputs: C CE D PRE # Outputs: Q FDPE 9 0 4 1 - - - 404