HD66750 Datasheet, PDF (33/96 Pages) Hitachi Semiconductor – 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions

HD66750/1
Vertical Scroll Control
SL6Ð0: Specify the display start raster-row for vertical smooth scrolling. Any raster-row from the first to
128th can be selected (table 14). After the 128th raster-row is displayed, the display restarts from the first
raster-row. For details, see the Vertical Smooth Scroll section.
In partial smooth scrolling, these bits specify the display start raster-row of the next fixed-display raster-
row. For details, see the Partial Smooth Scroll Display Function section.
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 * * * * * * * * * SL6 SL5 SL4 SL3 SL2 SL1 SL0
Figure 14 Vertical Scroll Control Instruction
Table 14 SL Bits and Display-start Raster-row
SL6
SL5
SL4
SL3
SL2
SL1
SL0
Display-start Raster-row
0
0
0
0
0
0
0
1st raster-row
0
0
0
0
0
0
1
2nd raster-row
0
0
0
0
0
1
0
3rd raster-row
0
0
0
0
0
1
1
4th raster-row
0
0
0
0
1
0
0
5th raster-row
:
:
:
:
:
:
:
:
1
1
1
1
1
1
0
127th raster-row
1
1
1
1
1
1
1
128th raster-row
33