UPD161401 Datasheet, PDF (78/124 Pages) NEC – 256-COLOR, 1/80-DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM

µPD161401
6.19 Scroll Fixed Area Position Register (R23)
This command specifies the display position of the scroll fixed area to upper or bottom of side in LCD panel.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
FIXAHL
Table 6−16. Scroll Fixed Position Register (R23)
FIXAHL
0
1
Display Position
bottom
upper
Default value (default value of reset command)
D7
D6
D5
D4
D3
D2
D1
D0
Note Note Note Note Note Note Note
1
Note 0 or 1
6.20 Scroll Fixed Area Width Register (R27)
This register selects the width of the area to be fixed from 0, 16, 24, and 32 lines.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
FIXAW1 FIXAW0
Table 4−16. Scroll Fixed Area Width Register (R27)
FIXAW1
0
0
1
1
FIXAW0
0
1
0
1
Fixed Area Width
0
16
24
32
Even if the screen display size is changed by the duty setting register (R14 and R17), FIXAW1 and FIXAW0 are not
overwritten.
Default value (default value of reset command)
D7
D6
D5
D4
D3
D2
D1
D0
Note Note Note Note Note Note
0
0
Note 0 or 1
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Data Sheet S15726EJ2V0DS