ra8816 RAIO Technology Inc., ra8816 Datasheet - Page 45

• Manufacturer Part Number: ra8816
• Description: 144x65 Character/graphic Lcd Driver
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.6
RAiO TECHNOLOGY INC.
7-2 Graphic Mode
In the graphics mode, the RA8816 is fill the bit map data into display memory directly. So if the [MD1,
MD0] of register is set to ”00” (Graphics Mode), then write the data into memory, the data will show on
the screen that cursor pointed.
The display RAM size of RA8816 is 1170Byte(144*65/8). Each memory bit is mapping to the LCD panel.
If the data is “1” then the mapped dot is turn on. Please refer the Figure 7-3.
The RA8816 also provide a clean feature to clear all of the display RAM. If the “MCLR” of register
PWRR is set to “1”, then all of contents of Display RAM will be clear to “0”. In the graphics mode, the
user could select the blinking or inverse through register BLTR. The blinking are is assigned by the
size of Scroll Window.
D7 D6 D5 D4 D3 D2 D1 D0
1 1
Display Data RAM
1 0 0 1 1
Figure 7-3: Display Data Mapping to the Screen
Figure 7-2: Graphics Mode Display
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1
2
Display On LCD
144x65 Character/Graphic LCD Driver
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RA8816