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Diffstat (limited to 'README.md')
-rw-r--r-- | README.md | 26 |
1 files changed, 13 insertions, 13 deletions
@@ -545,7 +545,7 @@ The following evaluations have been performed with Vivado 2015.1. #### Timing on Xilinx 7-Series FPGAs -The `picorv32_axi` module with enabled `TWO_CYCLE_COMPARE` has been placed and +The `picorv32_axi` module with enabled `TWO_CYCLE_ALU` has been placed and routed for Xilinx Artix-7T (xc7a15t-fgg484), Xilinx Kintex-7T (xc7k70t-fbg676), and Xilinx Virtex-7T (xc7v585t-ffg1761) devices in all speed grades. A binary search is used to find the lowest clock period for which the design meets @@ -555,15 +555,15 @@ See `make table.txt` in [scripts/vivado/](scripts/vivado/). | Device | Speedgrade | Clock Period (Freq.) | |:-------------------- |:----------:| --------------------:| -| Xilinx Artix-7T | -1 | 4.6 ns (217 MHz) | -| Xilinx Artix-7T | -2 | 4.0 ns (250 MHz) | -| Xilinx Artix-7T | -3 | 3.4 ns (294 MHz) | -| Xilinx Kintex-7T | -1 | 3.0 ns (333 MHz) | -| Xilinx Kintex-7T | -2 | 2.7 ns (370 MHz) | -| Xilinx Kintex-7T | -3 | 2.5 ns (400 MHz) | -| Xilinx Virtex-7T | -1 | 3.0 ns (333 MHz) | -| Xilinx Virtex-7T | -2 | 2.5 ns (400 MHz) | -| Xilinx Virtex-7T | -3 | 2.2 ns (454 MHz) | +| Xilinx Artix-7T | -1 | 4.3 ns (232 MHz) | +| Xilinx Artix-7T | -2 | 3.4 ns (294 MHz) | +| Xilinx Artix-7T | -3 | 3.0 ns (333 MHz) | +| Xilinx Kintex-7T | -1 | 2.8 ns (357 MHz) | +| Xilinx Kintex-7T | -2 | 2.2 ns (454 MHz) | +| Xilinx Kintex-7T | -3 | 2.1 ns (476 MHz) | +| Xilinx Virtex-7T | -1 | 2.8 ns (357 MHz) | +| Xilinx Virtex-7T | -2 | 2.2 ns (454 MHz) | +| Xilinx Virtex-7T | -3 | 2.1 ns (476 MHz) | #### Utilization on Xilinx 7-Series FPGAs @@ -583,7 +583,7 @@ See `make area` in [scripts/vivado/](scripts/vivado/). | Core Variant | Slice LUTs | LUTs as Memory | Slice Registers | |:------------------ | ----------:| --------------:| ---------------:| -| PicoRV32 (small) | 775 | 48 | 422 | -| PicoRV32 (regular) | 960 | 48 | 564 | -| PicoRV32 (large) | 1684 | 88 | 1002 | +| PicoRV32 (small) | 770 | 48 | 422 | +| PicoRV32 (regular) | 938 | 48 | 564 | +| PicoRV32 (large) | 1710 | 88 | 1002 | |