ra8835a RAIO Technology Inc., ra8835a Datasheet - Page 72

• Manufacturer Part Number: ra8835a
• Description: Dot Matrix Lcd Controller
• Manufacturer: RAIO Technology Inc.

RAiO TECHNOLOGY INC.
Version 1.0
8-5 Layered Display Attributes
Local flashing
8-5-1 Inverse Display
RA8835A series incorporates a number of functions for enhanced displays using monochrome LCD
panels. It allows the display of inverse characters, half-intensity menu pads and flashing of selected
screen areas. These functions are controlled by the OVLAY and DISP ON/OFF commands.
A number of means can be used to achieve these effects, depending on the display configuration.
These are listed below. Note, however, that not all of these can be used in the one layer at the same
time.
Ruled line
Attribute
Half-tone
Reverse
The first layer is text, the second layer is graphics.
1. CSRW, CSDIR, MWRITE
2. OVLAY: MX0 = 1, MX1 = 0
3. DISP ON/OFF: FP0 = FP1 = 1, FP1 = FP3 = 0.
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.
MX1
0
1
0
1
0
0
0
0
1
MX0
1
1
0
1
0
1
0
1
1
Figure 8-8: Layer Synthesis
Combined layer
ME
BL
RL
IV
display
Yes,No
72/88
RAIO
Error
LINE
LINE
1st layer display
ME
BL
RL
IV
Yes, No
RAIO
LINE
LINE
Dot Matrix LCD Controller
2ndt layer display
RA8835A
www.raio.com.tw
Error