st2024c Sitronix Technology Corporation, st2024c Datasheet - Page 20
st2024c
Manufacturer Part Number
st2024c
Description
24k 8-bit Single Chip Microcontroller
Manufacturer
Sitronix Technology Corporation
Datasheet
1.ST2024C.pdf
(54 pages)
- Current page: 20 of 54
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10.4 SEGMENT-PORT
The SEG0~SEG3 can be used as LCD drivers or output
ports.
$FF($00) into LCD RAM in order to output FLOAT(LOW).
Ver 2.2
Address Name
Address
$03A
$200
$201
$202
$203
Bit 3:
In the output port mode, programmer must write $FF($00) into LCD RAM to output FLOAT(LOW).
In output port mode, programmer must write
LCTL
SEGMENT OUT 0
SEGMENT OUT 1
SEGMENT OUT 2
SEGMENT OUT 3
SEGO : Segment output selection bit
1 = SEG0-SEG3 used as output pins
0 = SEG0-SEG3 used as LCD segment pins
Name
R/W
W
LPWR
Bit 7
R/W
TABLE 10-14: LCD CONTROL REGISTER (LCTL)
W
W
W
W
TABLE 10-15: SEGMENT OUT REGISTER
Bit 7
BLANK
Bit 6
Bit 6
COMO
Bit 5
Bit 5
20/54
SEGMENT-0 OUTPUT BIT
SEGMENT-1 OUTPUT BIT
SEGMENT-2 OUTPUT BIT
SEGMENT-3 OUTPUT BIT
LENH
Bit 4
The assignments of SEGO will be decided by Bit 3 of
LCTL[3]. Please refer to TABLE 10-14.
Bit 4
SEGO
Bit 3
Bit 3
CTR[1]
Bit 2
Bit 2
CTR[0]
Bit 1
Bit 1
DUTY
Bit 0
Bit 0
0000 0000
???? ????
???? ????
???? ????
???? ????
ST2024C
Default
Default
1/31/08
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