FW82801BA S L5PN Intel, FW82801BA S L5PN Datasheet - Page 326
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FW82801BA S L5PN
Manufacturer Part Number
FW82801BA S L5PN
Description
Manufacturer
Intel
Datasheet
1.FW82801BA_S_L5PN.pdf
(671 pages)
Specifications of FW82801BA S L5PN
Lead Free Status / RoHS Status
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LPC Interface Bridge Registers (D31:F0)
9.1.16
326
PIRQ[n]_ROUT—PIRQ[A,B,C,D] Routing Control Register
(LPC I/F—D31:F0)
Offset Address:
Default Value:
Lockable:
Bit
6:4
3:0
7
Interrupt Routing Enable (IRQEN) — R/W.
0 = The corresponding PIRQ is routed to one of the ISA-compatible interrupts specified in
1 = The PIRQ is not routed to the 8259.
NOTE: BIOS must program this bit to 0 during POST for any of the PIRQs that are being used.
Reserved
IRQ Routing — R/W. (ISA compatible.)
0000 = Reserved
0001 = Reserved
0010 = Reserved
0011 = IRQ3
0100 = IRQ4
0101 = IRQ5
0110 = IRQ6
0111 = IRQ7
bits[3:0].
The value of this bit may subsequently be changed by the OS when setting up for I/O
APIC interrupt delivery mode.
PIRQA
PIRQC
80h
No
–
–
60h, PIRQB
62h, PIRQD
1000 = Reserved
1001 = IRQ9
1010 = IRQ10
1011 = IRQ11
1100 = IRQ12
1101 = Reserved
1110 = IRQ14
1111 = IRQ15
–
–
61h,
63h
Intel
Description
Attribute:
Size:
Power Well:
®
82801EB ICH5 / 82801ER ICH5R Datasheet
R/W
8 bit
Core
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