NH82801DB S L8DE Intel, NH82801DB S L8DE Datasheet - Page 372
NH82801DB S L8DE
Manufacturer Part Number
NH82801DB S L8DE
Description
Manufacturer
Intel
Datasheet
1.NH82801DB_S_L8DE.pdf
(587 pages)
Specifications of NH82801DB S L8DE
Lead Free Status / RoHS Status
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LPC Interface Bridge Registers (D31:F0)
9.9.2
9.9.3
9.9.4
372
TCO1_TMR—TCO Timer Initial Value Register
I/O Address:
Default Value:
Lockable:
TCO1_DAT_IN—TCO Data In Register
I/O Address:
Default Value:
Lockable:
TCO1_DAT_OUT—TCO Data Out Register
I/O Address:
Default Value:
Lockable:
Bit
7:6
5:0
Bit
7:0
Bit
7:0
Reserved
Value that is loaded into the timer each time the TCO_RLD register is written. Values of 0h
be ignored and should not be attempted. The timer is clocked at approximately 0.6 seconds, and
this allows timeouts ranging from 2.4 seconds to 38 seconds.
Data Register for passing commands from the OS to the SMI handler. Writes to this register will
cause an SMI and set the OS_TCO_SMI bit in the TCO_STS register.
Data Register for passing commands from the SMI handler to the OS. Writes to this register will set
the TCO_INT_STS bit in the TCO_STS register. It will also cause an interrupt, as selected by the
TCO_INT_SEL bits.
TCOBASE +01h
0004h
No
TCOBASE +02h
0000h
No
TCOBASE +03h
0000h
No
Description
Description
Description
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
Intel
R/W
8 bit
Core
R/W
8 bit
Core
R/W
8 bit
Core
®
82801DB ICH4 Datasheet
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