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©2004 Inova Computers GmbHPage 2-10 Doc. PD00941013.001
Configuration
ICP-CM
Table 2.70 CompactPCI Bus Interrupts
2.7 Interrupt Configuration
The CompactPCI specification defines a total of six interrupt signals on the backplane. INTA#
through INTD# are used to route interrupts from the CompactPCI boards to the PIC on the ‘proc-
essor board. The interrupt request level generated by the device depends on the backplane slot
number which the board is plugged into, and the interrupt signal which is driven by the particular
PCI device.
Note:
CompactPCI interrupts may be shared
by multiple sources
Note:
Interrupts INTA through INTS and
ENUM are System Master CPU inputs.
INTA and ENUM are outputs if the
CPU is in Peripheral Mode.
CompactPCI
Bus Interrupts
CompactPCI
Bus Interrupts
INTA#
INTB#
INTC#
INTD#
INTP ( IRQ14 )
INTS
(IRQ15) or Serialized
Interrupt -
Refer to BIOS
Documentation
ENUM# Routed by BIOS