876784 Intel, 876784 Datasheet - Page 287

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

Chipset Configuration Registers
7.1.45
7.1.46
Intel
®
ICH7 Family Datasheet
D27IP—Device 27 Interrupt Pin Register
Offset Address: 3110–3113h
Default Value:
D31IR—Device 31 Interrupt Route Register
Offset Address: 3140–3141h
Default Value:
14:12
31:4
3:0
3:0
Bit
Bit
Bit
15
11
PCI Express #1 Pin (P1IP) — R/W.This field iIndicates which pin the PCI Express
port #1 drives as its interrupt.
0h = No interrupt
1h = INTA# (Default)
2h = INTB#
3h = INTC#
4h = INTD#
5h–Fh = Reserved
Reserved
Intel
Intel High Definition Audio controller drives as its interrupt.
0h = No interrupt
1h = INTA# (Default)
2h = INTB#
3h = INTC#
4h = INTD#
5h-Fh = Reserved
Reserved
Interrupt D Pin Route (IDR) — R/W. This field indicates which physical pin on the
Intel
0h = PIRQA#
1h = PIRQB#
2h = PIRQC#
3h = PIRQD# (Default)
4h = PIRQE#
5h = PIRQF#
6h = PIRQG#
7h = PIRQH#
NOTE: Ultra Mobile. PIRQA#–PIRQD# are not on the ICH7U. Eventhough the register
Reserved
®
®
ICH7 is connected to the INTD# pin reported for device 31 functions.
defaults to a non-ICH7U pin routing, BIOS default sets the register for
PIRQE#–PIRQH#.
High Definition Audio Pin (ZIP) — R/W. This field indicates which pin the
00000001h
3210h
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
R/W
32-bit
R/W
16-bit
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