w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 126

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

12.3.5 Power Management 1 Control Register 1 (PM1CTL1)
Register Location:
Default Value:
Attribute:
Size:
12.3.6 Power Management 1 Control Register 2 (PM1CTL2)
Register Location:
Default Value:
Attribute:
Size:
0
1
2
3-7
0-7
BIT
BIT
SCI_EN
BM_RLD
GBL_RLS
Reserved
Reserved
NAME
NAME
Reserved. These bits always return zeros.
Reserved. These bits always return zeros.
<CR60, 61> + 4H System I/O Space
00h
Read/write
8 bits
Selects whether the power management event triggers a SCI or an SMI
interrupt. When this bit is set, the power management events will generate
an SCI interrupt. When this bit is reset and SMI_EN bit is set, the power
management events will generate an SMI interrupt.
This is the bus master reload enable bit. If this bit is set and BM_CNTRL is
set, an SCI interrupt is raised.
The global release bit. This bit is used by the ACPI software to raise an
event to the BIOS software. The BIOS software has a corresponding enable
and status bit to control its ability to receive the ACPI event. Setting
GBL_RLS sets BIOS_STS, and it generates an SMI interrupt if BIOS_EN is
also set.
<CR60, 61> + 5H System I/O Space
00h
Read/write
8 bits
7
7
6
6
5
5
4
4
3
3
- 118 -
2
2
DESCRIPTION
DESCRIPTION
W83977ATF/W83977ATG
1
1
0
0
SCI_EN
BM_RLD
GBL_RLD
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved