參數(shù)資料
型號: S1C6P466D0A0A00
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, UUC140
封裝: DIE-140
文件頁數(shù): 125/174頁
文件大小: 1582K
代理商: S1C6P466D0A0A00
44
EPSON
S1C6P466 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
4.7.4 LCD display control (ON/OFF) and switching of duty
(1) Display ON/OFF control
The S1C6P466 incorporates the ALON and ALOFF registers to blink display. When "1" is written to
ALON, all the dots go ON, and when "1" is written to ALOFF, all the dots go OFF. At such a time, an
ON waveform or an OFF waveform is output from SEG terminals. When "0" is written to these
registers, normal display is performed. Furthermore, when "1" is written to both of the ALON and
ALOFF, ALON (all ON) has priority over the ALOFF (all OFF).
(2) Switching of drive duty
In the S1C6P466, the drive duty can be set to 1/17, 1/16 or 1/8 by the software. This setting is done
using the LDUTY1 and LDUTY0 registers as shown in Table 4.7.4.1.
Table 4.7.4.1 LCD drive duty setting
LDUTY1
1
0
LDUTY0
1
0
Drive duty
1/8
1/16
1/17
Common terminal used
COM0–COM7
COM0–COM15
COM0–COM16
Maximum segment number
480 (60
× 8)
960 (60
× 16)
1,020 (60
× 17)
Table 4.7.4.2 shows the frame frequencies corresponding to the OSC1 oscillation frequency and drive
duty.
Table 4.7.4.2 Frame frequency
OSC1 oscillation
frequency
32.768 kHz
When 1/8 duty
is selected
32 Hz
When 1/16 duty
is selected
32 Hz
When 1/17 duty
is selected
30.12 Hz
Figures 4.7.4.1 shows the dynamic drive waveform for 1/4 bias.
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