User`s guide

DWMBB Adapter
3.4.7 IVINTR Transactions
Implied Vector Interrupts (IVINTRs) are generated by the DWMBB
whenever it detects a condition indicating a possible loss of data, such
as parity or ECC errors during DMA or I/O writes. The DWMBB also
generates IVINTRs when there is an impending power failure on the
VAXBI.
All IVINTRs commands generated by the DWMBB have the WRT ERROR
INT bit set in the Type field and the target node specified in the Interrupt
Destination field. Figure 3–10 shows the format of the IVINTR command.
Figure 3–10 IVINTR Command Format
6
3
6
0
5
9
2
0
1
9
1
6
1
50
MBZ Target Node ID
Interrupt
Destination
msb−p092−89
Type = WRT ERROR INT
1111 0010
3–25