ra8802 RAIO Technology Inc., ra8802 Datasheet - Page 15

• Manufacturer Part Number: ra8802
• Description: Character/graphic Lcd Controller
• Manufacturer: RAIO Technology Inc.

Version 1.3
RAiO
REG [B8h] Interrupt Row Setup Register (INTY)
REG [C0h] Touch Panel Control Register (TPCR)
REG [C8h] Touch Panel Data Register (TPDR)
REG [D0] LCD Contrast Control Register (LCCR)
7-0
3-0
7-0
Bit
Bit
Bit
Bit
7
6
5
4
7
6
5
TECHNOLOGY INC.
Setup Interrupt Row Address
If Cursor Position Y Register (CPYR)=INTY, a interrupt has occurred
Touch Panel function active
1: Disable
0: Enable
Touch Panel Data Output
1: Disable the Touch Panel Data Output
0: Enable the Touch Panel Data Output
Reserved
Touch Event status.
1: No Touch Event.
0: Touch Event occur
Touch Panel control bit
The operation flowchart shown as Fig 6-6
This register keeps the touch panel active position (Column, Row)
LCD contrast control
1: Disable
0: Enable
LCD contrast control DAC write enable
1: Don’t allow MCU to write data to DAC Bit [4~0]
0: Allow MCU to write data to DAC Bit [4~0]
Reset LCD contrast control function
1: Normal operation
Bit3 = 0
Bit2 = 0
Bit1 = 0
Bit0 = 0
Switch SW3 OFF, Bit3 = 1
Switch SW2 OFF, Bit2 = 1
Switch SW1 OFF, Bit1 = 1
Switch SW0 OFF, Bit0 = 1
Description
Description
Description
Description
15/15
Switch SW3 ON
Switch SW2 ON
Switch SW1 ON
Switch SW0 ON
Character/Graphic LCD Controller
RA8802/8820
www.raio.com.tw
Default
Default
Default
Default
Fig 6-6
EFh
1h
1h
0h
1h
0h
1h
1h
1h
Access
Access
Access
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R