TOPSCCC EX-9686U-L series, Hardware User Manual

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EX-9686U-L Series Hardware User Manual
Page
24
3.9 I
2
C Interface
The I
2
C works as a master port by default:
The master port is pulled high to +3.3V with 2
resistors internally
. The slave devices have to be connected directly without additional
power supply on I
2
C bus.
SCL
SDA
I
2
C Bus
J1
SCL
SDA
I
2
C Master Port (SBC/NSD/EC21)
I
2
C Slave Device
GND
1
3
J1 pin 1