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Intel® IQ80219 General Purpose PCI Processor Evaluation Platform
External RAID Section
4.2 Interrupt Routing
The interrupt lines for devices on the SPCI-X bus (Expansion Slot and Intel
®
82544 Gigabit Ethernet
Controllerr) are routed based on requirements.
Table 87. Interrupt Routing for Secondary PCI-X Private Device
Number Description
4.2.1
The INTA# and INTB# of PCI-X Expansion Slot are routed to XINT0# and XINT1# External
Interrupt inputs on the 80219.
4.2.2
The INTA# of Intel 82544 Controller is routed to XINT2# External Interrupt input on the
80219.
4.2.3 The interrupt routing scheme is based on Figure 18.
Figure 18. Interrupt Routing for Private Device Configuration
B2838-01
XINT0#
Intel
®
80219 General Purpose
PCI Processor
INTA#
INTB#
INTC#
INTD#
INTA#
INTA#
INTB#
INTA#
INTB#
INTC#
INTD#
MUX
XINT2#
MUX
XINT3#
PPCI-X Bus
MUX
SPCI-X Slot
Intel
®
82544
Gigabit Ethernet