Technical Specs

广州市定昌电子有限公司
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第 10 页 共 16 页
5.1.5. I2C1 Interface
No.
Definition
Attribute
Description
1
3.3V
Power
+3.3V Input
2
SDA1
Input/Output
I2C1 data Line
3
SCL1
Input/Output
I2C1 Timing Line
4
GND
Ground
Ground
5.1.6. MCU Record Interface
No.
Definition
Attribute
Description
1
MCUVCC
Power
+3.3V Output
2
SWIM
Input
Single wire interface
3
GND
Ground
Ground
4
MCURST
Input
Reset
5.1.7. I2C Touching Interface
5.1.8. LED/IR Interface
No.
Definition
Attribute
Description
1
IR_IN
Input
Infrared receiver signal input
2
GND
Ground
Ground
3
IRVCC
Power
+5V Output
4
G
Indicator Light
Working Light
5
3.3V
Power
+3.3V Output
6
R
Indicator Light
Standby Light
7
PWR_ON
Input
Switch Control Line
，
Single pull down
effective
（
Details please see 5.1.4 Switch
control
）
No.
Definition
Attribute
Description
1
GND
Ground
Ground
2
SCL3
Input/Output
I2C3 Timing Line
3
SDA3
Input/Output
I2C3 Data Line
4
TP_RST
Input/Output
Touching Screen Reset
Signal
5
TP_INT
Input/Output
Touching Screen Interrupt
Signal
6
3.3V
Power Output
+3.3V Output