(2)Response
This scanner reports as follows: a. Normal:
f Status: | B©00000 (GOOD) |
f Sense key: X©0 (NO SENSE)
b.Abnormal:
f Status: | B©00001 (CHECK CONDITION) |
fSense key: X©0, X©2, X©3, X©4, X©5, X©6, or X©B
4.4.7SET WINDOW command
The following table shows the normal sequence of the SET WINDOW command when used with this scanner.
Step | Bus phase | Initiator operation | ¨Æ | Target operation |
|
|
|
|
|
1 | BUS FREE | Verifies bus free |
|
|
|
|
|
|
|
2 | ARBITRATION | Obtains bus>usage |
|
|
|
| right |
|
|
|
|
|
|
|
3 | SELECTION | Selects target | Æ |
|
|
|
|
|
|
|
|
|
| Drives BSY signal |
|
|
|
|
|
4 | (MESSAGE OUT) | Selects logical unit | Æ |
|
|
|
|
|
|
5 | COMMAND | Specifies SET | Æ | Sets window |
|
| WINDOW (CDB) |
|
|
|
|
|
|
|
6 | DATA OUT | Specifies window | Æ |
|
|
| data |
|
|
|
|
|
|
|
7 | STATUS |
| ¨ | Reports GOOD status |
|
|
|
|
|
8 | MESSAGE IN |
| ¨ | Reports message |
|
|
|
| (Command Complete) |
|
|
|
|
|
|
|
|
| Releases BSY signal |
|
|
|
|
|
9 | BUS FREE |
|
|
|
|
|
|
|
|
4 $ 37