st2024c Sitronix Technology Corporation, st2024c Datasheet - Page 42
st2024c
Manufacturer Part Number
st2024c
Description
24k 8-bit Single Chip Microcontroller
Manufacturer
Sitronix Technology Corporation
Datasheet
1.ST2024C.pdf
(54 pages)
- Current page: 42 of 54
- Download datasheet (667Kb)
Ver 2.2
* Under 1/8 duty condition with writing a “1” to COMO, LCD output pin COM7~COM4 will be controlled by the SCAN register.
Address Name
Address Name
(Please refer to 9.5 Common port)
$03A
$038
Bit 1:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2~1: CTR[1~0] : LCD Contrast Control
Bit 0:
XLCD
LCTL
00 = LCD Contrast maximum (level 4)
01 = LCD Contrast level 3
10 = LCD Contrast level 2
11 = LCD Contrast minimum (level 1)
HEAV : LCD driving mode control
LPWR : LCD power ON/OFF bit
BLANK : LCD display ON/OFF bit
COMO : Output mode for LCD common
LENH : heavy load control for LCD display
SEGO : mode control for LCD segment output
DUTY : LCD duty control bit
1 = LCD power OFF
0 = LCD power ON
1 = Disable LCD display (Common line is still scanning)
0 = Enable LCD display
1 = COM7~COM4 will be general purpose output only pin
0 = All common output is used as LCD common driver.
1 = Enhanced driving (For large size LCD panel with more power consumption)
0 = Normal driving
1 = SEG3~SEG0 will be general purpose output pin only
0 = All segment output is used as LCD segment driver
1 = 1/8 duty (1/4 bias) *
0 = 1/4 duty (1/3 bias)
1 = Heavy driving mode
0 = Normal driving mode
R/W
R/W
R/W
W
TABLE 15-35:
LPWR
Bit 7
Bit 7
TABLE 15-36: LCD CONTROL REGISTER (LCTL)
-
BLANK
Bit 6
Bit 6
-
HEAVY DRIVING LCD MODE CONTROL
COMO
Bit 5
Bit 5
-
42/54
LENH
Bit 4
Bit 4
-
SEGO
Bit 3
Bit 3
-
CTR[1]
Bit 2
Bit 2
-
CTR[0]
HEAV
Bit 1
Bit 1
DUTY
Bit 0
Bit 0
-
- - - - - - 0-
0000 0000
ST2024C
Default
Default
1/31/08
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