Intel SE7500CW2 - IRQ Scan for PCIIRQ

SE7500CW2 Server Board Technical Product Specification Included PCI Devices
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Revision 1.40
4.5.4 IRQ Scan for PCIIRQ
The IRQ / data frame structure includes the ability to handle up to 32 sampling channels with the
standard implementation using the minimum 17 sampling channels. The Intel Server Board
SE7500CW2 has an external PCI interrupt serializer for PCIIRQ scan mechanism of ICH3-S to
support 16 PCI IRQs.