Intel IQ80219 manual Interrupt Routing for Secondary PCI-X Private Device

Intel® IQ80219 General Purpose PCI Processor Evaluation Platform

External RAID Section

4.2Interrupt 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.

4.2.3The interrupt routing scheme is based on Figure 18.

Figure 18. Interrupt Routing for Private Device Configuration

				Intel® 82544
				Gigabit Ethernet
Intel®	80219 General Purpose			INTA#
PCI Processor
				XINT0#
				MUX
			MUX	XINT2#
		MUX		XINT3#
					INTB#
				INTA#
	INTD#	INTC#	INTB#	INTA#
				SPCI-X Slot
	INTD#	INTC#	INTB#	INTA#
				PPCI-X Bus
					B2838-01

70 Board Manual