Figure 8 display the highlighted 9 pin connector J304 on bottom side of SoM_IoT_1V2 2V0 printed circuit board. This connector allocate the large-scale integrated circuit R-IN32M3-EC with external SPI and additional SYNC signals. Furthermore the power supply pins VCC33 and GROUND are connected on J202Timer Array Unit signals.
Pin 19 (TAUJ2_CH0)
Pin 20
Pin 21
Pin 22
Pin 23
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