FW82801DBM S L6DN Intel, FW82801DBM S L6DN Datasheet - Page 393
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FW82801DBM S L6DN
Manufacturer Part Number
FW82801DBM S L6DN
Description
Manufacturer
Intel
Datasheet
1.FW82801DBM_S_L6DN.pdf
(615 pages)
Specifications of FW82801DBM S L6DN
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9.9.7
Intel
®
82801DBM ICH4-M Datasheet
TCO1_CNT—TCO1 Control Register
I/O Address:
Default Value:
Lockable:
15:12
7:0
Bit
10
11
9
8
Reserved
TCO Timer Halt (TCO_TMR_HLT) — R/W.
0 = The TCO Timer is enabled to count.
1 = The TCO Timer will halt. It will not count, and thus cannot reach a value that will cause an SMI#
SEND_NOW — R/W-Special.
0 = The ICH4 will clear this bit when it has completed sending the message. Software must not set
1 = Writing a 1 to this bit will cause the ICH to send an Alert On LAN Event message over the
NOTE: Setting the SEND_NOW bit causes the ICH4 integrated LAN Controller to reset, which can
NMI2SMI_EN — R/W.
0 = Normal NMI functionality.
1 = Forces all NMIs to instead cause SMIs. The functionality of this bit is dependent upon the
NMI_ENGBL_SMI_ENDescription
NMI_NOW — R/WC.
0 = This bit is cleared by writing a 1 to the bit position. The NMI handler is expected to clear this bit.
1 = Writing a 1 to this bit causes an NMI. This allows the BIOS or SMI handler to force an entry to
Reserved
00 No SMI# at all because GBL_SMI_EN = 0
01 SMI# will be caused due to NMI events
10 No SMI# at all because GBL_SMI_EN = 0
11 No SMI# due to NMI because NMI_EN = 1
or set the SECOND_TO_STS bit. When set, this bit will prevent rebooting and prevent Alert On
LAN event messages from being transmitted on the SMLINK (but not Alert On LAN* heartbeat
messages).
this bit to 1 again until the ICH4 has set it back to 0.
SMLINK interface, with the Software Event bit set.
settings of the NMI_EN bit and the GBL_SMI_EN bit as detailed in the following table:
Another NMI will not be generated until the bit is cleared.
the NMI handler.
have unpredictable side-effects. Unless software protects against these side effects,
software should not attempt to set this bit.
TCOBASE +08h
0000h
No
Description
Attribute:
Size:
Power Well:
LPC Interface Bridge Registers (D31:F0)
R/W, R/WC, R/W-Special
16 bit
Core
393
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