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The VL-EPICs-36 has the standard complement of PC-type interrupts. Up to eight IRQ lines can
be allocated as needed to PCI devices. There are no interrupt configuration jumpers. All
configuration is handled through CMOS Setup.
= default setting
Source
Timer
Keyboard
Slave PIC
COM1
COM2
COM3
COM4
RTC
Mouse
Math Chip
Pri. IDE
PCI INTA#
PCI INTB#
PCI INTC#
PCI INTD#
PCI INTE#
PCI INTF#
PCI INTG#
PCI INTH#
PCI interrupt routings apply to legacy Programmable Interrupt Controller (PIC) mode. When the
OS switches to Advanced PIC (APIC) mode, PCI devices use IRQs beyond IRQ 15.
VL-EPICs-36 Reference Manual
Interrupt Configuration
Table 23: Interrupt Configuration
= allowed setting
0
1
2
3
4
IRQ
5
6
7
8
9
6 6
10
11
12
13
14
15
46
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