231
MC96F6432A
ABOV Semiconductor Co., Ltd.
LCDCRL (LCD Driver Control Low Register): 99H
7
6
5
4
3
2
1
0
IRSEL
–
DBS3
DBS2
DBS1
DBS0
LCLK1
LCK0
R/W
–
R./W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
IRSEL
Internal LCD Bias Dividing Resistor Select
0
R
LCD
= 60kΩ (R
LCD1
)
1
R
LCD
= 120kΩ (R
LCD2
)
DBS[3:0]
LCD Duty and Bias Select (NOTE)
DBS3
DBS2
DBS1
DBS0 Description
0
0
0
0
1/8Duty, 1/4Bias, R
LCD
0
0
0
1
1/6Duty, 1/4Bias, R
LCD
0
0
1
0
1/5Duty, 1/3Bias, R
LCD
0
0
1
1
1/4Duty, 1/3Bias, R
LCD
0
1
0
0
1/3Duty, 1/3Bias, R
LCD
0
1
0
1
1/3Duty, 1/2Bias, R
LCD
0
1
1
0
1/3Duty, 1/2Bias, 2xR
LCD
0
1
1
1
1/2Duty, 1/2Bias, R
LCD
1
0
0
0
1/2Duty, 1/2Bias, 2xR
LCD
Other values
Not available
LCLK[1:0]
LCD Clock Select (When f
WCK
(Watch timer clock)= 32.768kHz)
LCLK1 LCLK0 Description
0
0
f
LCD
= 128Hz
0
1
f
LCD
= 256Hz
1
0
f
LCD
= 512Hz
1
1
f
LCD
= 1024Hz
NOTE)
1.
The LCD clock is generated by watch timer clock (f
WCK
). So the watch
timer should be enabled when the LCD display is turned on.
LCD Clock
Frequency (f
LCD
)
LCD Frame Frequency (f
FRAME
)
Unit
1/2 Duty
1/3 Duty
1/4 Duty
1/5 Duty
1/6 Duty
1/8 Duty
128
64
43
32
26
21
16
Hz
256
128
85
64
51
43
32
512
256
171
128
102
85
64
1024
512
341
256
205
171
128
Table 11.24
LCD Frame Frequency
The LCD frame frequency is calculated by the following formula:
LCD Frame Frequency (f
FRAME
) = f
LCD
×
Duty Hz
Ex) In case of 1/4 duty and f
LCD
=512Hz, f
FRAME
= f
LCD
×
1/4 = 512
×
1/4 = 12Hz
Содержание MC96F6432A
Страница 16: ...16 MC96F6432A ABOV Semiconductor Co Ltd 4 Package Diagram Figure 4 1 48 Pin QFN Package ...
Страница 17: ...17 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 2 44 Pin MQFP Package ...
Страница 18: ...18 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 3 32 Pin LQFP Package ...
Страница 19: ...19 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 4 32 Pin SOP Package ...
Страница 20: ...20 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 5 28 Pin SOP Package ...