W83977ATF Datasheet, PDF (183/207 Pages) Winbond – WINBOND I/O

765
43
21
0
W83977ATF
PRELIMINARY
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Bit
Name
0-7 Reserved
Description
Reserved. These bits always return zeros.
9.3.19 General Purpose Event 1 Enable Register 1 (GP1EN1)
Register Location:
<CR64, 65> + 2H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
765
43
21
0
Bit
Name
0
BIOS_EN
1
TMR_ON
2-7 Reserved
BIOS_EN
TMR_ON
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
This bit is 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.
9.3.20 General Purpose Event 1 Enable Register 2 (GP1EN2)
Register Location:
<CR64, 65> + 3H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
-127 -
Publication Release Date:April 1998
Revision 0.53