7 |
SCSI PACKETS
+$20 |
| RAM Work Area Address (MSW) | |
|
|
| |
+$22 |
| RAM Work Area Address (LSW) | |
|
|
|
|
$00 | 00000xxx |
| Controller logical unit |
|
|
| number (SCSI |
|
|
| address |
$01 | 00000xxx |
| Device logical unit |
|
|
| number |
$02 | xxxxxxxx |
| Status from SCSI |
|
|
| firmware (byte 0) |
|
|
| (Note 1) |
$03 | xxxxxxxx |
| Status from SCSI |
|
|
| firmware (byte 1) |
|
|
| (Note 1) |
$04 | 00000000 |
| Reserved |
$05 | xxxxxxxx |
| Step Rate |
|
|
| of 40 intervals per |
|
|
| step (a value of 0 |
|
|
| defaults to 6 ms) |
$06 | 00000000 |
| Reserved |
$07 | xxxxxxxx |
| Number of heads on |
|
|
| drive |
$08 | xxxxxxxx | xxxxxxxx | Number of cylinders |
|
|
| on drive |
$0A | xxxxxxxx | xxxxxxxx | Precompensation |
|
|
| cylinder |
$0C | xxxxxxxx | xxxxxxxx | Logical sectors per |
|
|
| track, physical = this |
|
|
| plus alternate sectors |
|
|
| per zone if zone = |
|
|
| track |
$0E | 00000000 | 00000000 | Reserved |
$10 | xxxxxxxx | xxxxxxxx | SCSI drive attributes |
| ........ | .......0 | FM encoding, single |
|
|
| density |
| ........ | .......1 | MFM encoding, |
|
|
| double density |
