876784 Intel, 876784 Datasheet - Page 289
876784
Manufacturer Part Number
876784
Description
Manufacturer
Intel
Datasheet
1.876784.pdf
(848 pages)
Specifications of 876784
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Chipset Configuration Registers
7.1.47
Intel
®
ICH7 Family Datasheet
D30IR—Device 30 Interrupt Route Register
Offset Address: 3142–3143h
Default Value:
14:12
10:8
6:4
Bit
15
11
7
3
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#
PIRQA#–PIRQD# are not on Ultra Mobile. Eventhough the register defaults to a non-
ICH7U pin routing, BIOS default sets the register for PIRQE#–PIRQH#.
Reserved
Interrupt C Pin Route (ICR) — R/W. This field indicates which physical pin on the
ICH7 is connected to the INTC# pin reported for device 30 functions.
0h = PIRQA#
1h = PIRQB#
2h = PIRQC# (Default)
3h = PIRQD#
4h = PIRQE#
5h = PIRQF#
6h = PIRQG#
7h = PIRQH#
NOTE: PIRQA#–PIRQD# are not on Ultra Mobile. Eventhough the register defaults to
Reserved
Interrupt B Pin Route (IBR) — R/W. This field indicates which physical pin on the
ICH7 is connected to the INTB# pin reported for device 30 functions.
0h = PIRQA#
1h = PIRQB# (Default)
2h = PIRQC#
3h = PIRQD#
4h = PIRQE#
5h = PIRQF#
6h = PIRQG#
7h = PIRQH#
NOTE: PIRQA#–PIRQD# are not on Ultra Mobile. Eventhough the register defaults to
Reserved
®
ICH7 is connected to the INTD# pin reported for device 30 functions.
a non-ICH7U pin routing, BIOS default sets the register for PIRQE#–PIRQH#.
a non-ICH7U pin routing, BIOS default sets the register for PIRQE#–PIRQH#.
3210h
Description
Attribute:
Size:
R/W
16-bit
289
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