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INT 1Ah Setting/Reading Time and Date
Operatio n
Reading clock
S e tti ng clock
R e a ding time
S e tti ng ti me
R e a ding da te
S e tti ng date
S e tti ng a la rm
C l e aring a la rm
INT 5Fh Expansion BIOS
Operatio n
Display ON/OFF
(including backlight)
R eading contrast *1
S etti ng contras t *2
*1 Backlight contrast control is available only on the PL-5700L1 and PL-5701l1. It is not
supported by the PL-5700T1 or PL-5701T1.
*2 8 contrast levels: D2, D1, D0, 000b (dark) ~ 111b (bright)
Backlight brightness: D4, 0b (dark) ~ 1b (bright)
App-28
Inpu t
AH = 01h
AH =
01h
C X =
S i g nifica nt 16 bits of clock
D X =
data
Ins ignifica nt 16 bits of
clock da ta
AH = 02h
AH =
03h
C H =
Hours (B CD )
C L =
Minutes (B CD )
D H =
S e conds (B CD )
D L =
S u mmertime option (0 or
1)
AH = 04h
AH =
05h
C H =
Wes tern calendar (Year
given as 2-digit B CD,
C L =
s ignificant 2 bits: 19 or 20)
D H =
Yea r (BC D)
D L =
Month (B CD )
D ay (B CD )
AH =
06h
C H =
Hours (B CD )
C L =
Minutes (B CD )
D H =
S e conds (B CD )
AH = 07h
Input
AX =
0800h
B L =
0 : OFF
1 : ON
AX = 0A00h
AX =
00A01h
B L =
C ontras t s etti ng(00h -07h,
10h-17h)
O
utpu t
C X =
S i g nifica nt 16 bits of current clock
D X =
data
AL =
Ins ignifica nt 16 bits of current
clock da ta
Overflow fla g on 24-hour system
C H =
Hours (B CD )
C L =
Minutes (B CD )
D H =
S e conds (B CD )
D L =
S u mmertime option (0 or 1)
C Y=
E n d status
0: S u cces s f u lly completed
1: Error
C
H =
Wes tern calendar (Year given as 2-
digit BC D, significant 2 bits : 19 or
C L =
20)
D H =
Yea r (BC D)
D L =
Month (B CD )
C Y=
D ay (B CD )
E n d status
0: S u cces s f u lly completed
1: Error
C Y= End s ta tus
0: S u cces s f u lly completed
1: Error
O
utput
AH = 0: Succes s f u lly completed
1: Error
AH =
0: S u cces s f u lly completed
AL =
C ontras t s etti ng (00h - 07h, 10H -
AH =
17H)
AL =
1: C MOS error
3: Default value
AH =
0: S u cces s f u lly completed
=
1: C MOS error / contras t s etti ng
s ucces s f u ly
completed
PL-5700 Series User's Manual
Appendix
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