ra8835 Topway Display, ra8835 Datasheet - Page 68

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

RAiO TECHNOLOGY INC.
Version 1.7
Local flashing
8-5-1 Inverse Display
8-5-2 Half-tone Display
Ruled line
Attribute
Half-tone
Reverse
The first layer is text, the second layer is graphics.
The FP parameter can be used to generate half-intensity display by flashing the display at 17 Hz.
Note that this mode of operation may cause flicker problems with certain LCD panels.
8-5-2-1 Menu pad display
8-5-2-2 Graph display
To present two overlaid graphs on the screen, configure the display as for the menu bar display
1. CSRW, CSDIR, MWRITE
2. OVLAY: MX0 = 1, MX1 = 0
3. DISP ON/OFF: FP0 = FP1 = 1, FP1 = FP3 = 0.
1. OVLAY: P1 = 00H
2. DISP ON/OFF: P1 = 34H
SAD1
AB
Write is into the graphics screen at the area to be inverted.
Set the combination of the two layers to Exclusive-OR.
Turn on layers 1 and 2.
1st layer
MX1
0
1
0
1
0
0
0
0
1
Figure 8-9: Half-tone Character and Graphics
MX0
1
1
0
1
0
1
0
1
1
+
Figure 8-8: Layer Synthesis
Combined layer
ME
RL
BL
IV
display
SAD2
Yes,No
68/86
RAIO
Error
LINE
LINE
2nd layer
1st layer display
ME
BL
RL
IV
Yes, No
RAIO
LINE
LINE
C
AB
ombined layer display
Dot Matrix LCD Controller
Half-tone
2ndt layer display
www.raio.com.tw
RA8835
Error