| Space (Blocks, Filemarks, End of Recorded Media) Packet |
mode $02 = | Space sequential filemarks (if supported by |
| drive |
mode $03 = | Space to end of recorded media |
where n = number of blocks or filemarks to Space.
Some drives support spacing backwards by using negative 2’s complement number n. Refer to the drive manual.
The table below shows the space packet.
Even Byte \
Odd Byte \
| FC |
|
| B8 | 74 |
| 30 |
|
|
|
|
|
|
|
|
+$00 |
|
| Controller LUN |
| Device LUN | ||
|
|
|
|
| |||
+$02 |
|
| Status Byte 0 | Status Byte 1 (Note 1) | |||
|
|
|
|
|
| ||
+$04 |
|
| Number of Data Blocks/Filemarks (MSW) | ||||
|
|
|
| ||||
+$06 |
|
| Number of Data Blocks/Filemarks (LSW) | ||||
|
|
|
|
|
|
| |
+$08 |
| 0 |
| 0 | 0 |
| 0 |
|
|
|
|
|
|
|
|
+$0A |
| 0 |
| 0 | 0 |
| 0 |
|
|
|
|
|
|
|
|
+$0C |
| 0 |
| 0 | 0 |
| 0 |
|
|
|
|
|
|
|
|
+$0E |
|
| Mode | 0 |
| 0 | |
|
|
|
|
|
|
| |
+$10 |
|
| 0 | 0 |
| 0 | |
|
|
|
|
|
|
|
|
0 |
|
|
|
|
|
| +$12 |
|
|
|
|
|
|
|
|
0 |
|
| 0 | 0 |
| 0 | |
|
|
|
|
|
| ||
+$14 |
| 0 |
| 0 | Function Code (38) | ||
|
|
|
|
|
|
|
|
+$16 |
|
| Interrupt Level |
| Vector Number | ||
|
|
|
|
| |||
+$18 |
|
| Status Byte 2 | Status Byte 3 (Note 1) | |||
|
|
|
|
|
|
| |
$00 |
| 00000xxx |
| Controller logical unit | |||
|
|
|
|
|
| number | |
$01 |
| 00000xxx |
| Device logical unit | |||
|
|
|
|
|
| number | |
7 |
