78M6612 Split-Phase Evaluation Board User Manual
Table 3: J12 UART Connector Pin Assignments
UM_6612_044
J12 Pin Number
Identifier
V3P3
TXD
Function
1
2
3
4
+3.3V to daughter card
78M6612 TXD output
78M6612 RXD input
GND to daughter card
RXD
GND
The UART Isolator daughter card maintains the same pin functions on its connector interface to the
external controller.
The UART isolator board is not required when using a wireless module. However, use of an antenna with
an exposed metal mounting base presents a safety hazard. The other consideration regarding use of a
wireless module is the module’s transmitting power consumption. The on-board switcher can provide only
100mA (at 3.3V). Use an external power supply if the transmitter’s power is greater than 100mA.
12
Rev. 1.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
