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    M3 SMART Pin I/O Description
     
    This document describes the type and usage of 9 POGO Pin connector of M3 SMART which is located at the bottom of the device.
    POGO PIN Description
     
    No.
    Name
    Connect Information
    1
    USB_DN
    For USB data negative
    2
    USB_DP
    For USB data positive
    3
    USBVBUS
    USB Host Power
    4
    DETECT
    Not Connected
    5
    DM_RXD
    CPU_TRST, Serial RXD COM2
    6
    DM_TXD
    TEXT_POINT, Serial RXD COM2
    7
    USB_ID
    High for Client, Low for Host
    8
    GND
    Power Ground
    9
    +5V
    System Power and Charging