21020285 D User’s Guide
Chapter 7 Board-control Commands
Page 7 - 28 Target Mode Enable (0AH)
Selection Interrupt
This field is used to define the interrupt level for the adapter to use when
information in the Target Selection Data Structure is ready for the Host to read.
It also contains the interrupt acknowledge ID that the adapter will place on the
data bus in response to the Host. The format is:
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 Target Mode Enable
command, it is always equal to 0AH.
BITS
1514131211109876543210
000 00 INT Status/ID
Table 84: Meaning of Selection Interrupt Field