ra8835 Topway Display, ra8835 Datasheet - Page 57

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

RAiO TECHNOLOGY INC.
Version 1.7
No.
1
2
3
4
5
SYSTEM SET
HDOT SCR
Command
P10 = 00H
P6 = EFH
Power-up
P1 = 30H
P2 = 87H
P3 = 07H
P4 = 27H
P5 = 2FH
P7 = 28H
P8 = 00H
P1 = 00H
P2 = 00H
P3 = F0H
P4 = 80H
P5 = 25H
P6 = F0H
P7 = 00H
P8 = 4BH
P9 = 00H
P1 = 00H
SCROLL
C = 5AH
C = 40H
C = 44H
Supply
Table-25: Initialization Procedure
57/86
M0: Internal CG ROM
M1: CG RAM is 32 characters maximum
M2: 8 lines per character
W/S: Two-panel drive
IV: No top-line compensation
FX: Horizontal character size = 8 pixels
WF: Two-frame AC drive
FY: Vertical character size = 8 pixels
C/R: 39 display addresses per line
TC/R: Total address range per line = 47
f
L/F: 239 display lines
AP: Virtual screen horizontal size is 40
addresses
First screen block start address
Set to 0000H
Display lines in first screen block = 240
Second screen block start address
Set to 1000H
Display lines in second screen block = 240
Third screen block start address
Set to 4B00H
Fourth screen block start address
Set to 0000H
Set horizontal pixel shift to zero
OSC
= 8.0 MHz, f
(SAD2) 2580H
(SAD3) 4B00H
(SAD1) 0000H
(SAD4) 0000H
Display memory
FR
Operation
= 70 Hz
1st display memory page
2nd display memory page
3rd display memory page
4th display memory page
Dot Matrix LCD Controller
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RA8835