ra8835 Topway Display, ra8835 Datasheet - Page 70

• Manufacturer Part Number: ra8835
• Description: Dot Matrix Lcd Controller
• Manufacturer: Topway Display

RAiO TECHNOLOGY INC.
Version 1.7
Direction of cursor movement
Data held in the microprocessor memory
AH
BH
CH
DH
EH
FH
0H
1H
2H
3H
4H
5H
6H
7H
8H
9H
O
8
(11)
(13)
(15)
(17)
(19)
(21)
(23)
(25)
(27)
(29)
(31)
O
(1)
(3)
(5)
(7)
(9)
1st column
7
O
A
6
(11)
(13)
(15)
(17)
(19)
(21)
(23)
(25)
(27)
(29)
(31)
0
(1)
(3)
(5)
(7)
(9)
Figure 8-11: Graphics Address Indexing
O
= 0
(19)
(17)
(15)
(13)
(11)
5
(6)
(4)
(2)
(9)
(7)
(5)
(3)
(1)
O
4
O
(10)
(12)
(14)
(16)
(18)
(20)
(22)
(24)
(26)
(28)
(30)
(32)
Figure 8-12: Graphics Bit Map
(2)
(4)
(6)
(8)
3
O
2
O
1
O
8
O
7
O
70/86
memory area
2nd column
6
1st column
memory area
Data written into the RA8835 display memory
O
2nd column
A
(10)
(12)
(14)
(16)
(18)
(20)
(22)
(24)
(26)
(28)
(30)
(32)
0
5
(2)
(4)
(6)
(8)
= 1
O
4
O
3
O
2
O
1
(4)
(2)
(3)
(1)
(n) shows the CG ROM
data readout order
320 dots
Dot Matrix LCD Controller
www.raio.com.tw
RA8835