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UPD16682 Datasheet(PDF) 17 Page - NEC

Part # UPD16682
Description  1/65 DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM
PDF  31 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16682 Datasheet(HTML) 17 Page - NEC

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Data Sheet S13368EJ3V0DS00
17
µµµµ PD16682
6.4 Line Address Circuit
As is shown in Figure 6
−2, the line address circuit specifies the line address that corresponds to a COM output for
displaying the contents of display data RAM. The display start line address set command usually specifies the
highest line in the display (corresponding to the COM0 output when in normal mode or the COM63 output when in
inverted mode). Thus, there are 65 lines in the direction of incrementation of line address starting from the specified
display start line address.
The screen can be scrolled by dynamically changing the line address via the display start line address set
command.
Figure 6
−−−−2. Specification of Display Start Line Address in Display Data RAM
Line
COM
D3 D2 D1 D0
Address
Output
D0
00H
COM0
D1
01H
COM1
D2
02H
COM2
00
00
D3
03H
COM3
D4
04H
COM4
D5
05H
COM5
D6
06H
COM6
D7
07H
COM7
D0
08H
COM8
D1
09H
COM9
D2
0AH
COM10
00
01D3
Page1
D4
0CH
COM12
D5
0DH
COM13
D6
0EH
COM14
D7
0FH
COM15
D0
10H
COM16
D1
11H
COM17
D2
12H
COM18
0
0
1
0
D3
D4
14H
COM20
D5
15H
COM21
D6
16H
COM22
D7
17H
COM23
D0
18H
COM24
D1
19H
COM25
D2
1AH
COM26
00
11D3
D4
1CH
COM28
D5
1DH
Start
COM29
D6
1EH
COM30
D7
1FH
COM31
D0
20H
COM32
D1
21H
COM33
D2
22H
COM34
01
00D3
D4
24H
COM36
D5
25H
COM37
D6
26H
COM38
D7
27H
COM39
D0
28H
COM40
D1
29H
COM41
D2
2AH
COM42
01
01D3
D4
2CH
COM44
D5
2DH
COM45
D6
2EH
COM46
D7
2FH
COM47
D0
30H
COM48
D1
31H
COM49
D2
32H
COM50
0
1
1
0
D3
D4
34H
COM52
D5
35H
COM53
D6
36H
COM54
D7
37H
COM55
D0
38H
COM56
D1
39H
COM57
D2
3AH
COM58
01
11D3
D4
3CH
COM60
D5
3DH
COM61
D6
3EH
COM62
D7
3FH
COM63
10
00D0
COMS
Page Address
Data
Page0
Page2
Page3
Page4
Page5
Page6
Page7
Page8
0BH
13H
1BH
23H
2BH
33H
3BH
COM11
COM19
COM27
COM35
COM43
COM51
COM59
Common output status :
Normal mode
Note
Note COMS accesses the 65th line regardless of the display start line address.



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