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Chapter 7 |
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Start Command List (01H) | Page 7 - 7 |
Interrupt
Note
An Error Code of 11H will be returned in the Status Block if you attempt to start an already started Command List.
This field defines the interrupt level for the adapter to use when reporting command completion. You can also denote the resultant interrupt acknowledge ID that the adapter will place on the data bus in response to the host. The Interrupt field of the Start Command List Parameter Block uses these bit- meanings:
BITS
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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0 | 0 | 0 | 0 | 0 |
| INT |
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| Status/ID |
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Table 61: Bit-meanings of Interrupt Field
Status/ID Interrupt Status/ID - This byte denotes the value the adapter will provide to identify the interrupt being acknowledged by the Host.
INT Interrupt Level - You may elect to use any one of the following levels for adapter interrupt:
000 — Interrupt disabled
001 — Interrupt level 1
010 — Interrupt level 2
011 — Interrupt level 3
100 — Interrupt level 4
101 — Interrupt level 5
110 — Interrupt level 6
111 — Interrupt level 7
Command Code
This field indicates the command to be executed. For the Start Command List command it is always equal to 01H.
User’s Guide | 21020285 D |