w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 184
w83977atf
Manufacturer Part Number
w83977atf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977ATF.pdf
(207 pages)
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2-7
Bit
0
1
BIOS_RLS
BM_CNTRL
Reserved
Name
7
6
5
The BIOS release bit. This bit is used by the BIOS software to raise an event
to the ACPI software. The ACPI software has a corresponding enable and
status bit to control its ability to receive the ACPI event. Setting BIOS_RLS
sets GBL_STS, and it generates an SCI interrupt if GBL_EN is also set.
Writing a 1 to its bit position sets this bit and also sets the BM_STS bit.
Writing a 0 has no effect. This bit is cleared by writing a 1 to the GBL_STS
bit.
This bit is used to set the BM_STS bit and if the BM_RLD bit is also set, then
an SCI interrupt is generated. Writing a 1 sets BM_CNTRL to 1 and also sets
BM_STS. Writing a 0 has no effect. Writing a 1 to BM_STS clears BM_STS
and also clears BM_CNTRL.
Reserved.
4
3
2
1
0
-128 -
BIOS_RLS
BM_CNTRL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
Publication Release Date:April 1998
W83977ATF
PRELIMINARY
Revision 0.53
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