NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 287
NH82801HBM S LB9A
Manufacturer Part Number
NH82801HBM S LB9A
Description
CONTROLLER HUB, ICH8M, I/O, 82801HBM
Manufacturer
Intel
Datasheet
1.NH82801HBM_S_LB9A.pdf
(890 pages)
Specifications of NH82801HBM S LB9A
Power Dissipation Pd
2.4W
Digital Ic Case Style
BGA
No. Of Pins
676
Pci Bus Type
I/O Controller Hub
Pci Express Base Spec
PCIe 1.1
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chipset Configuration Registers
7.1.51
Intel
®
ICH8 Family Datasheet
TCTL—TCO Configuration Register
Offset Address: 3000–3000h
Default Value:
6:3
2:0
Bit
7
TCO IRQ Enable (IE) — R/W.
0 = TCO IRQ is disabled.
1 = TCO IRQ is enabled, as selected by the TCO_IRQ_SEL field.
Reserved
TCO IRQ Select (IS) — R/W. Specifies on which IRQ the TCO will internally appear.
If not using the APIC, the TCO interrupt must be routed to IRQ9-11, and that
interrupt is not sharable with the SERIRQ stream, but is shareable with other PCI
interrupts. If using the APIC, the TCO interrupt can also be mapped to IRQ20-23, and
can be shared with other interrupt.
000 = IRQ 9
001 = IRQ 10
010 = IRQ 11
011 = Reserved
100 = IRQ 20 (only if APIC enabled)
101 = IRQ 21 (only if APIC enabled)
110 = IRQ 22 (only if APIC enabled)
111 = IRQ 23 (only if APIC enabled)
When setting the these bits, the IE bit should be cleared to prevent glitching.
When the interrupt is mapped to APIC interrupts 9, 10 or 11, the APIC should be
programmed for active-high reception. When the interrupt is mapped to APIC
interrupts 20 through 23, the APIC should be programmed for active-low reception.
00h
Description
Attribute:
Size:
R/W
8-bit
287
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