NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 383
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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LPC Interface Bridge Registers (D31:F0)
9.8.1.4
C
Intel
®
ICH8 Family Datasheet
GEN_PMCON_LOCK—General Power Management Configuration Lock
Register
Offset Address: A6h
Default Value:
Lockable:
Power Well:
This register is used to enable new C-state related modes.
(Desktop
(Desktop
(Mobile
(Mobile
(Mobile
Only)
Only)
Only)
Only)
Only)
6:2
7:2
Bit
7
1
0
0
Unlocked C-State Transition: This bit is set by hardware when a CPU power state
(C-State) transition deeper than C2 occurs and the C-STATE_CONFIG_LOCK bit is
not set. This bit is cleared by PLTRST# and is not writable by software.
Reserved
ACPI_BASE_LOCK: When set to 1, this bit locks down the ACPI Base Address
Register (ABASE) at offset 40h. The Base Address Field becomes read-only.
This bit becomes locked when a value of 1b is written to it. Writes of 0 to this bit are
always ignored. Once locked by writing 1, the only way to clear this bit is to perform
a platform reset.
C-STATE_CONFIG_LOCK: When set to 1, this bit locks down the C-State
configuration parameters. The following configuration bits become read-only when
this bit is set:
This bit becomes locked when a value of 1b is written to it. Writes of 0 to this bit are
always ignored. Once locked by writing 1, the only way to clear this bit is to perform
a platform reset.
Reserved
• GEYSERVILLE_EN (GEN_PMCON_1, bit 3)
• IA64_EN (GEN_PMCON_1, bit 6)
• C4_DISABLE (GEN_PMCON_1, bit 12)
• CPU_PLL_LOCK_TIME (GEN_PMCON_2, bits 6:5)
• The entire C4 Timing Control Register (C4_TIMING_CNT)
• The entire C5 Exit Timing Register (C5_EXIT_TIMING_CNT)
00h
No
Core
Description
Attribute:
Size:
Usage:
R/W
8-bit
ACPI
383
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