RA8835A
Version 1.0
Dot Matrix LCD Controller
6-3-2 SCROLL
6-3-2-1 C
Set the scroll start address and the number of lines per scroll block. Parameters P1 to P10 can be
omitted if not required. The parameters must be entered sequentially as shown in Figure 6-11.
MSB
LSB
C
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
0
1
0
0
0
1
0
0
A7
A15
L7
A6
A5
A4
A3
A2
A1
A9
L1
A1
A9
L1
A1
A9
A1
A9
A0
A8
L0
A0
A8
L0
A0
A8
A0
A8
(SAD 1L)
A14
L6
A13
L5
A12
L4
A11
L3
A10
L2
(SAD 1H)
(SL1)
A7
A6
A5
A4
A3
A2
(SAD 2L)
(SAD 2H)
(SL2)
A15
L7
A14
L6
A13
L5
A12
L4
A11
L3
A10
L2
A7
A6
A5
A4
A3
A2
(SAD 3L)
(SAD 3H)
(SAD 4L)
(SAD 4H)
A15
A7
A14
A6
A13
A5
A12
A4
A11
A3
A10
A2
A15
A14
A13
A12
A11
A10
Figure 6-11: SCROLL Instruction Parameters
Note: Set parameters P9 and P10 only if both two-screen drive (W/S = 1) and two-layer
configuration are selected. SAD4 is the fourth screen block display start address.
Table-11: Screen Block Start Address Selection
SL1, SL2
[SL] screen lines
HEX L7
L6
0
0
↓
1
L5
0
0
↓
1
L4
0
0
↓
1
L3
0
0
↓
1
L2
0
0
↓
1
L1
0
0
↓
1
L0
0
1
↓
1
00
01
↓
0
0
↓
0
↓
1
1
1
2
↓
128
↓
255
256
7F
↓
↓
1
↓
1
↓
1
↓
1
↓
1
↓
1
↓
0
FE
FF
1
1
1
1
1
1
1
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