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UPD16488AP Datasheet(PDF) 65 Page - NEC

Part # UPD16488AP
Description  1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
PDF  91 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16488AP Datasheet(HTML) 65 Page - NEC

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Data Sheet S15745EJ2V0DS
65
µµµµPD16488A
6.23 Gray Scale Data Registers 1 to 4 (R23 to R26)
The gray scale data registers specify the gray scale level when using normal four-level gray scale display mode. Use of
this register optimizes the gray scale display.
Rx
Data
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
R23
0, 0
1
−−
GD5
GD4
GD3
GD2
GD1
GD0
−
R24
0, 1
1
−−
GD5
GD4
GD3
GD2
GD1
GD0
−
R25
1, 0
1
−−
GD5
GD4
GD3
GD2
GD1
GD0
−
R26
1, 1
1
−−
GD5
GD4
GD3
GD2
GD1
GD0
−
D7
D6
D5
D4
D3
D2
D1
D0
Gray scale level
Disable
Disable
000000
Level 0
Disable
Disable
000001
Level 1
Disable
Disable
000010
Level 2
Disable
Disable
000011
Level 3
::
Disable
Disable
011111
Level 31
Disable
Disable
100000
Level 32
Default settings (initial values set by reset command, for all gray scale data registers)
D7
D6
D5
D4
D3
D2
D1
D0
−−
000000
6.24 Partial Gray Scale Data Registers 1 to 4 (R27 to R30)
The partial gray scale data registers specify the gray scale level when using partial four-level gray scale display mode.
Use of this register optimizes the gray scale display.
Rx
Data
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
R27
0, 0
1
−−
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
−
R28
0, 1
1
−−
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
−
R29
1, 0
1
−−
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
−
R30
1, 1
1
−−
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
−
D7
D6
D5
D4
D3
D2
D1
D0
Gray scale level
Disable
Disable
000000
Level 0
Disable
Disable
000001
Level 1
Disable
Disable
000010
Level 2
Disable
Disable
000011
Level 3
::
Disable
Disable
011111
Level 31
Disable
Disable
100000
Level 32
Default settings (initial values set by reset command, for all partial gray scale data registers)
D7
D6
D5
D4
D3
D2
D1
D0
−−
000000



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