st2032a Sitronix Technology Corporation, st2032a Datasheet - Page 36

• Manufacturer Part Number: st2032a
• Description: 8 Bit Microcontroller With 32k Bytes Rom
• Manufacturer: Sitronix Technology Corporation

Ver 2.4
Address Name
$03B
Bit 7~4: DRV[3:0] : LCD driving strength control
Bit2~0: LCK[2:0] : LCD frame rate control
LCK
*** Measure Condition: Vdd=3V, LCD frame rate=64Hz, OSCX on , in WAI1.
0000
0001
0010
1110
1110
1111
R/W
R/W
TABLE 15-4 LCD Clock Source and Driving Strength Control Register
0000(max.)
1111(mini.)
Note: If LCD clock source is from OSCX, after power on, wait one
= driving level 16/16 (maximum)
= driving level 15/16
= driving level 14/16
= driving level 3/16
= driving level 2/16
= driving level 1/16 (minimum)
DRV[3:0]
Frame Rate = 64Hz
0001
0010
0100
0101
1000
1001
1010
0011
0110
1011
1100
1101
0111
1110
DRV[3]
Bit 7
LCK[2:0]
second for OSCX to be stable and then turn on LCD.
000
001
010
100
101
011
110
111
:
:
DRV[2]
Bit 6
DRV[1]
Bit 5
Driving strength
OSCX (32768Hz)
OSCX (32768Hz)
Clock Source
Level 16 (max.)
Level 1(mini.)
OSC (2MHz)
OSC (2MHz)
OSC (4MHz)
OSC (4MHz)
OSC (8MHz)
OSC (8MHz)
Level 15
Level 14
Level 13
Level 12
Level 11
Level 10
Level 9
Level 8
Level 7
Level 6
Level 5
Level 4
Level 3
Level 2
DRV[0]
36/54
Bit 4
00XX
0100
0101
1101
1110
1111
Bit 3
= driving level 12/12
= driving level 12/12(maximum)
= driving level 11/12
= driving level 3/12
= driving level 2/12
= driving level 1/12 (minimum)
-
Frame Rate = 85Hz
1/16 Duty consumption
LCK[2]
Frame Rate
Bit 2
64 Hz
85 Hz
64 Hz
85 Hz
64 Hz
85 Hz
64 Hz
85 Hz
:
:
69.28
65.64
61.96
58.31
54.63
50.95
47.27
39.91
36.22
32.52
28.82
17.66
13.82
43.6
25.1
21.4
LCK[1]
(uA)
Bit 1
LCK[0]
Bit 0
111- -000
Default
ST2032A
9/13/07