| H | P | S | T |
| HD_SCSICMD | HFERR_DMA | HFERR_Phase | |
| HD_WIDESCSI | HFERR_NoBoard | HFERR_SelfUnit | |
| HFERR_BadStatus | HFERR_Parity | HFERR_SelTimeout |
| pSCSICmd |
| SCSIB_AUTOSENSE | SCSIB_READ_WRITE | SCSIF_NOSENSE | SCSIF_READ |
| SCSIB_OLDAUTOSENSE | SCSIF_AUTOSENSE | SCSIF_OLDAUTOSENSE | SCSIF_WRITE |
| tSCSICmd |