w83877atd Winbond Electronics Corp America, w83877atd Datasheet - Page 168

• Manufacturer Part Number: w83877atd
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

0
1
2-7
8.4.20 General Purpose Event 1 Enable Register 2 (GP1EN2)
Register Location:
Default Value:
Attribute:
Size:
Bit
Bit
2-7
0
1
BIOS_EN
TMR_ON
Reserved
BIOS_RLS
BM_CNTRL
Reserved
Name
Name
7
6
5
This bit raise the SMI event. When this bit is set and the ACPI software writes
a 1 to the GBL_RLS bit, an SMI event is raised on the SMI logic output.
This bit is used to turn on the power management timer. 1: timer on ; 0: timer
off.
Reserved.
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.
<CR34>+7H System I/O Space
00h
Read/write
8 bits
4
3
2
1
- 164 -
0
BIOS_RLS
BM_CNTRL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
Description
Publication Release Date: April 1998
W83877ATF
Version 0.51