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參數(shù)資料
| 型號(hào)： | S1C63455D |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 4.1 MHz, MICROCONTROLLER, UUC105 |
| 封裝： | DIE-105 |
| 文件頁數(shù)： | 67/119頁 |
| 文件大?。?/td> | 865K |
| 代理商： | S1C63455D |
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S1C63455 TECHNICAL MANUAL
EPSON
43
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
4.7.4 Display memory
The display memory is allocated to F000H–F077H in the data memory area and the addresses and the
data bits correspond to COM and SEG outputs as shown in Figure 4.7.4.1.
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
SEG0
s D0
s D1
s D2
s D3
s D0
s D1
s D2
s D3
F000H
F001H
Memory address
SEG1
s D0
s D1
s D2
s D3
s D0
s D1
s D2
s D3
F002H
F003H
SEG2
s D0
s D1
s D2
s D3
s D0
s D1
s D2
s D3
F004H
F005H
SEG3
s D0
s D1
s D2
s D3
s D0
s D1
s D2
s D3
F006H
F007H
. . . . .
SEG59
s D0
s D1
s D2
s D3
s D0
s D1
s D2
s D3
F076H
F077H
Data bit
Fig. 4.7.4.1 Correspondence between display memory and LCD dot matrix
When a bit in the display memory is set to "1", the corresponding LCD dot goes ON, and when it is set to
"0", the dot goes OFF.
At initial reset, the data memory content becomes undefined hence, there is need to initialize using the
software.
The display memory has read/write capability, and the addresses that have not been used for LCD
display can be used as general purpose registers.
4.7.5 LCD contrast adjustment
In the S1C63455, the LCD contrast can be adjusted by the software.
It is realized by controlling the voltages VC1, VC2, VC4 and VC5 output from the LCD system voltage
circuit. When these voltages are supplied to the externally expanded LCD driver, the expanded LCD
contrast is adjusted at the same time.
The contrast can be adjusted to 16 levels as shown in Table 4.7.5.1. When VCCHG = "0", VC1 is changed
within the range from 0.975 V to 1.2 V, and other voltages change according to VC1. When VCCHG = "1",
VC2 is changed within the range from 1.950 V to 2.4 V, and other voltages change according to VC2.
Table 4.7.5.1 LCD contrast
No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
LC3
0
1
LC2
0
1
0
1
LC1
0
1
0
1
0
1
0
1
LC0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Contrast
light
dark
At room temperature, use setting number 7 or 8 as standard.
Since the contents of LC0–LC3 are undefined at initial reset, initialize it by the software.
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| S1C63557D04Q000 | 制造商:Seiko Instruments Inc (SII) 功能描述:EPSON MCU 4BIT |
| S1C63567 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
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| S1C63632 | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer |
| S1C63653 | 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller |
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