UPD16488AP NEC [NEC], UPD16488AP Datasheet - Page 59

• Manufacturer Part Number: UPD16488AP
• Description: 1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
• Manufacturer: NEC [NEC]

6.7 AC Driver Inversion Cycle Register (R6)
Default settings (initial values set by reset command)
6.8 AC Driver Inversion Position Shift Register (R7)
Default settings (initial values set by reset command)
Caution The inversion position shift amount can not be over 91 (5CH). If 91 is exceeded, operation is not guaranteed.
The AC driver's line position for normal display mode can be set as shown in Table 6-5.
When a DTYn value is changed in the duty setting register (R5), the NIDn value is automatically overwritten by the DTYn value.
Be sure to set this register again after input the reset command.
Caution The inversion line can not be over 92 (5CH). If 92-line is exceeded, operation is not guaranteed.
This register shifts the inversion position for each frame in normal display mode by the shift amount shown in Table 6-6.
RS
RS
D
D
1
−
1
−
7
7
D
D
D
D
−
−
−
0
7
6
7
6
MSD5
0
0
0
0
1
1
1
1
MSD6
NID6
D
D
D
D
NID6
−
0
6
5
6
5
MSD5
0
0
0
0
1
1
1
1
Table 6-6. AC Driver Inversion Position Shift Register (R7) Settings
0
0
0
0
0
0
0
0
Table 6-5. AC Driver Inversion Cycle Register (R6) Settings
MSD5
NID5
D
D
D
D
NID5
−
0
5
4
5
4
MSD4
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
MSD4
NID4
D
D
D
D
NID4
−
0
4
3
4
3
MSD3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
:
MSD3
NID3
D
D
D
D
Data Sheet S15745EJ2V0DS
NID3
−
0
3
2
3
2
MSD2
0
0
0
0
1
1
1
1
:
0
0
0
0
0
0
0
1
MSD2
NID2
D
D
D
D
NID2
−
0
2
1
2
1
MSD1
0
0
0
0
0
0
0
1
0
0
1
1
0
1
1
0
MSD1
NID1
D
D
D
D
NID1
−
0
1
0
1
0
MSD0
0
0
1
1
0
1
1
0
0
1
0
1
1
0
1
0
MSD0
NID0
D
D
NID0
0
0
0
1
0
1
1
0
1
0
Inversion Position Shift Amount
Inversion Line
Inhibited
90
91
92
89
90
91
92
1
2
3
4
0
1
2
3
:
:
µ µ µ µ PD16488A
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