參數(shù)資料
型號: S1C63455F
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQFP128
封裝: PLASTIC, QFP5-128
文件頁數(shù): 66/119頁
文件大?。?/td> 865K
代理商: S1C63455F
42
EPSON
S1C63455 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
4.7.3 LCD display control (ON/OFF) and LCD drive waveform
(1) Display ON/OFF control
The S1C63455 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) LCD drive waveform
Figure 4.7.3.1 shows the dynamic drive waveform.
In the S1C63455, the drive duty is fixed at 1/8.
The frame frequency is fOSC1/1024; 32 Hz when fOSC1 (OSC1 oscillatin frequency) is 32.768 kHz and
58.6 Hz when fOSC1 is 60 kHz.
VC5
VC4
VC2
VC1
VSS
VC5
VC4
VC2
VC1
VSS
VC5
VC4
VC2
VC1
VSS
VC5
VC4
VC2
VC1
VSS
VC5
VC4
VC2
VC1
VSS
Drive duty
1/8
0123
7
Frame signal
0123
7
32 Hz
COM0
COM1
COM2
SEG0
SEG1
. . . . .
When fOSC1 = 32.768 kHz
Fig. 4.7.3.1 Drive waveform
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