876784 Intel, 876784 Datasheet - Page 339
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876784
Manufacturer Part Number
876784
Description
Manufacturer
Intel
Datasheet
1.876784.pdf
(848 pages)
Specifications of 876784
Lead Free Status / RoHS Status
Compliant
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LAN Controller Registers (B1:D8:F0) (Desktop and Mobile Only)
8.3.16
Note:
Intel
®
ICH7 Family Datasheet
FOR_ACT—Forced Actions Register
(ASF Controller—B1:D8:F0)
Offset Address: F3h
Default Value:
This register contains many different forcible actions including APM functions, flushing
internal pending SOS operations, software SOS operations, software reset, and
EEPROM reload. Writes to this register must only set one bit per-write. Setting multiple
bits in a single write can have indeterminate results.
For bits in this register, writing a 1 invokes the operation. The bits self-clear
immediately.
Bit
7
6
5
4
3
2
1
0
Software Reset (FRC_RST) — R/W. This bit is used to reset the ASF controller. It
performs the equivalent of a hardware reset and re-read the EEPROM. This bit self-
clears immediately. Software should wait for the EEC_LOAD bit to clear.
Force EEPROM Reload (FRC_EELD) — R/W. Force Reload of EEPROM without affect
current monitoring state of the ASF controller. This bit self-clears immediately.
NOTE: Software registers in EEPROM are not loaded by this action. Software should
Flush SOS (FRC_FLUSH) — R/W. This bit is used to flush any pending SOSes or
history internal to the ASF controller. This is necessary because the Status register only
shows events that have happened as opposed to SOS events sent. Also, the history bits
in the ASF controller are not software visible. Self-clears immediately.
Reserved
Force APM Power Cycle (FRC_ACYC) — R/W. This mode forces the ASF controller to
initiate a power cycle to the system. The bit self-clears immediately.
Force APM Hard Power Down (FRC_AHDN) — R/W. This mode forces the ASF
controller to initiate a hard power down of the system immediately. The bit self-clears
immediately.
Clear ASF Polling History (FRC_CLRAPOL) — R/W. Writing a 1b to this bit position
will clear the Poll History associated with all ASF Polling. Writing a 0b has no effect. This
bit self-clears immediately.
Force APM Reset (FRC_ARST) — R/W. This mode forces the ASF controller to initiate
a hard reset of the system immediately. The bit self-clears immediately.
disable the ASF controller before issuing this command and wait for STA_LOAD
to clear before enabling again.
02h
Description
Attribute:
Size:
R/W
8 bits
339
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