| # PULLTYPE |
| |
| PULLTYPE 38_98 39_97 39_97 |
| NONE X |
| KEEPER X X |
| PULLDOWN |
| PULLUP X X |
| |
| |
| # DRIVE |
| |
| Drive strength depends on current IOSTANDARD, e.g. |
| |
| LVCMOS18 |
| DRIVE 38_64 38_66 38_72 38_74 39_65 39_73 |
| 4 X X X |
| 8 X X X |
| 12 X X X |
| 16 X X X |
| 24 X X X |
| |
| LVCMOS25 |
| DRIVE 38_64 38_66 38_72 38_74 39_65 39_73 |
| 4 X X X |
| 8 X |
| 12 |
| 16 X X X |
| |
| LVCMOS33 |
| DRIVE 38_64 38_66 38_72 38_74 39_65 39_73 |
| 4 X X X |
| 8 X X X |
| 12 X X X |
| 16 X X X |
| |
| The minitest contains a csv target which generates a csv with differences across all LVCMOS and LVTTL standards for all supported DRIVE strengths and both slew rates. |
| |
| # IOSTANDARD |
| |
| Effects bits, TBD exactly how |
| Sample output: |
| |
| diff LVCMOS33.bits LVTTL.bits |
| < bit_00020026_006_00 |
| > bit_00020026_006_08 |
| |
| diff LVCMOS33.bits PCI33_3.bits |
| < bit_00020026_006_02 |
| < bit_00020026_006_18 |
| < bit_00020026_006_22 |
| > bit_00020026_006_10 |
| > bit_00020026_006_16 |
| > bit_00020026_006_20 |
| > bit_00020027_006_11 |
| > bit_00020027_006_15 |
| |
