Hardware Exceptions and Interrupts
Table 6-3. PCI Interrupt Assignments (continued)
AlphaStation 400 Series System
SCSI
Slot 1, INTA
Slot 1, INTB
Slot 1, INTC
Slot 1, INTD
Slot 2, INTA
Slot 2, INTB
Slot 2, INTC
Slot 2, INTD
PIRQ0 = 1A | 1D | 2B | 3C
PIRQ1 = 2A | 2D | 3B | 1C
PIRQ2 = 3A | 3D | 1B |2C
PIRQ3 = SCSI
6-6
PIRQ
PIRQ
PIRQ
0
1
2
.
.
.
x
.
.
.
.
x
.
x
.
x
.
.
.
x
.
x
.
.
.
.
x
.
.
x
PIRQ
3
x
.
.
.
.
.
.
.
.