W83977ATF Datasheet, PDF (182/207 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.
9.3.17 General Purpose Event 1 Status Register 1 (GP1STS1)
Register Location:
<CR64, 65> System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
765
43
21
0
Bit
Name
0
BIOS_STS
1-7 Reserved
BIOS_STS
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
The BIOS status bit. This bit is set when GBL_RLS is set. If BIOS_EN is set,
setting GBL_RLS will raise an SMI event. Writing a 1 to its bit location clears
BIOS_STS and also clears GBL_RLS. Writing a 0 has no effect.
Reserved.
9.3.18 General Purpose Event 1 Status Register 2 (GP1STS2)
Register Location:
<CR64, 65> + 1H System I/O Space
Default Value:
00h
Attribute:
Read/write
Size:
8 bits
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Publication Release Date:April 1998
Revision 0.53