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Jumper Descriptions

The jumpers used to configure the MCBXC167 board are:

  • J1 & J2 - 1M, 2M, CAN (Default: ON, ON)
  • These jumpers enable the CAN2 transceiver or expand the external Flash ROM address space to 2 MB.

  • Jumper1 When the jumper is set in the middle, the entire 2MByte space of the Flash ROM is accessible. The CAN2 RxD line is not connected to the transceiver.
    Jumper2 When two jumpers are used, the Flash ROM access is limited to 1 MB and the CAN2 RxD line is connected to the transceiver.
  • JP3 & JP4 - VAREF, GND (Default: ON, ON)
  • The VAREF and GND jumpers provide the reference voltage for the on-chip A/D converter. When these jumpers are in place, the on-board 5V reference is used. When these jumpers are removed, you must provide the A/D reference voltages to the board.

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