
Jan Yin Chan Electronics Co.,LTD. 386SX Single Chip PC
M6117D : System on a chip
DM&P
Jan Yin Chan Electronics Co,. LTD. M6117D 386SX Single Chip PC Page 49
8F-1,No.22,Wuchyuan 2RD.,Hsin Chuang city Taipei Hsien, Taiwan, R.O.C. Tel: 886-(02) 2298-0770 Fax: (02) 2299-1883
independent GPIO will be as GPO[15-8]
output pins .
INDEX 55H default 00H
Bit Description
7~2 reserved
1~0 SMI timing selection
0 0 : SMI timing support
0 1 : NMI timing support
1 0 : IRQ15 timing support
1 1 : reserved
INDEX 56H default 00H
Bit Description
7 SMI event signal
0 : disable
1 : enable
6 Software SMI
0 : disable
1 : enable
5~3 reserved
2 PMU state
1 : On
0 : Off
1~0 Power management system mode
state
0 0 : ON
0 1 : DOZE
1 0 : STANDBY
1 1 : SUSPEND
INDEX 57H
default 00H
Bit Description
7 DRQ select
1 : selected. If DRQ idle longer than mode
timer setting. Mode timer time-out will
signal.
0 : not selected.
6 FDD select (3F0H-3F7H)
1 : selected. If FDD cannot be accessed
longer than mode timer setting. Mode
timer time-out will signal.
0 : not selected.
5 COM select (3F8H-3FFH, 2F8H-2FFH,
3E8H-3EFH, 2E8H-2EEH)
1 : selected. If COM port cannot be
accessed longer than mode timer setting.
Mode timer time-out will signal.
0 : not selected.
4 LPT select (378H-37FH, 278H-27FH,
3BCH-3BEH)
1 : selected. If LPT port cannot be
accessed longer than mode timer setting.
Mode timer time-out will signal.
0 : not selected.
3 IRQ select
1 : selected. If IRQ idle longer than mode
timer setting. Mode timer time-out will
signal.
0 : not selected.
2 HDD select (1F0H-1F7H)
1 : selected. If HDD cannot be accessed
longer than mode timer setting. Mode
timer time-out will signal.
0 : not selected.
1 VGA select (Memory AB region write,
3B0H-3BFH write)
1 : selected. If VGA cannot be accessed
longer than mode timer setting. Mode
timer time-out will signal.
0 : not selected.
0 KBD select (60H, 64H)
1 : selected. If KBD cannot be accessed
longer than mode timer setting. Mode
timer time-out will signal.
0 : not selected.
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