RA8835A
Version 1.0
Dot Matrix LCD Controller
3E80H
3rd graphics layer
(8000 bytes)
1F40H
2nd graphics layer
(8000 bytes)
5DBFH
0000H
1st graphics layer
(8000 bytes)
3E7FH
1F3FH
Figure 8-4: Three Layer Graphics
◎ Register Setup Procedure
SYSTEM
C = 40H
SET TC/R calculation
P1 = 30H
P2 = 87H
P3 = 07H
P4 = 27H
P5 = 2FH
P6 = C7H
P7 = 28H
P8 = 00H
f
f
OSC = 6 MHz
FR = 70 Hz
(1/6) x 9 x [TC/R] x 200 = 1/70
[TC/R] = 48, so TC/R = 2FH
SCROLL
C = 44H
P1 = 00H
P2 = 00H
P3 = C8H
P4 = 40H
P5 = 1FH
P6 = C8H
P7 = 80H
P8 = 3EH
P9 = XH
P10 = XH
CSR FORM
C = 5DH
P1 = 07H
P2 = 87H
HDOT SCR
C = 5AH
P1 = 00H
OVLAY
C = 5BH
P1 = 1CH
RAiO TECHNOLOGY INC.
www.raio.com.tw
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RAIO [ RAIO TECHNOLOGY INC. ]
