CP307
Configuration
ID 34424, Rev. 3.0
Page 4 - 5
P R E L I M I N A R Y
4.3
Onboard PCI Interrupt Routing
The ICH7-R provides up to eight PCI interrupt inputs. The table below describes the connection
of these IRQ signals.
For more information, refer to the INTEL ICH7-R data sheet.
Table 4-3: PCI Interrupt Routing
ICH7-R IRQ INPUT
CPCI INTERFACE
FUNCTION INTERNAL ICH7-R
PIRQA
Not available
USB EHCI Controller
IDE
USB UHCI 0 Controller
PCI Express 1 (Gigabit Ethernet 1)
PIRQB
Not available
SMBUS
SATA
USB UHCI 1 Controller
PCI Express 2 (Gigabit Ethernet 2)
PIRQC
Not available
USB UHCI 2 Controller
PIRQD
Not available
USB UHCI 3 Controller
PIRQE
CPCI INTA
Not used
PIRQF
CPCI INTB
Not used
PIRQG
CPCI INTC
Not used
PIRQH
CPCI INTD
Not used
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