HD66724 Datasheet, PDF (45/117 Pages) Hitachi Semiconductor – (Graphics LCD Controller/Driver with Key Scan Function)

HD66724/HD66725
is used to achieve vertical smooth scrolling together with SN2 to SN0. For details, refer to the Vertical
Smooth Scroll section. During horizontal scrolling, the SN0 bit must be 0 (SN0 = 0).
R/W RS DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 1 0 0 1 SN2 SN1 SN0
0 0 0 1 0 1 0 SL2 SL1 SL0
Figure 17 Vertical Scroll Control 1/2 Instruction
Table 23 SN Bits and Display-Start Lines
SN2
SN1
SN0
Display-Start Line
0
0
0
1st line
0
0
1
2nd line
1
1
0
3rd line
1
1
1
4th line
1
0
0
5th line
1
0
1
Setting inhibited
1
1
0
Setting inhibited
1
1
1
Setting inhibited
Table 24 SL Bits and Display-Start Raster-Row
SL2
SL1
SL0
Display-Start Raster-Row
0
0
0
1st raster-row
0
0
1
2nd raster-row
0
1
0
3rd raster-row
0
1
1
4th raster-row
1
0
0
5th raster-row
1
0
1
6th raster-row
1
1
0
7th raster-row
1
1
1
8th raster-row
45