W83977ATF Datasheet, PDF (175/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
Register Location:
<
> + 4H System I/O Space
Default Value:
Attribute:
Read/write
8 bits
765
43
21
0
SCI_EN
BM_RLD
GBL_RLD
Reserved
Reserved
Reserved
Reserved
Reserved
Bit
Name
0
SCI_EN
1
BM_RLD
2
GBL_RLS
Reserved
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
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
SMI interrupt if BIOS_EN is also set.
Reserved. These bits always return zeros.
Register Location:
<
> + 5H System I/O Space
Default Value:
Attribute:
Read/write
8 bits
765
43
21
0
Bit
Name
0-7 Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
--
Publication Release Date:April 1998
Revision 0.53