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Jumper Descriptions

The jumpers used to configure the MCB2400 board are:

  • J13 - DBUS-EN: allows the logical AND of the CS2 and DYCS1 signals to control DBUS_EN.
  • J19 - P2.12-NAND READY: connects ready output to P2.12.
  • J23 - Ethernet PHY: connects PD to P0.20 and/or IRQ to P2.11.
  • J24 - Enable JTAG: allows use of the JTAG connector for downloading and debugging.
  • J25 - Enable ETM: allows use of the ETM connector (not populated) for downloading and debugging.
  • J26 - Analog Inputs: connects the analog output of the 2 potentiometers to the analog input AD0.0 and AD0.1.
  • J27 - MCIPWR Polarity: allows power to the memory card interface to be enabled using a low or high signal level.
  • J30, J31 - USB Serial Connect: connects either UART0 or WLAN to USB.
  • J33 - ISP Functionality: lets the RTS line of the COM0 port generate a signal on P2.10 (INT0). When RTS is active P2.10 is driven low. This is used to enter In-System Programming (ISP) mode.
  • J34 - CAN Select: connects either CAN1 (left position) or CAN 2 (right position) to the CAN transceiver U10.
    • WARNING: Do not install jumpers for CAN1 and CAN2 at the same time.
  • J36 - RS232 UART Mode: connects the on-chip UART #1 to the RS232 full modem driver at U11.
    • WARNING: Do not install jumpers for RS232 (J36) and WLAN (J38) at the same time.
  • J38 - WLAN UART Module: connects the on-chip UART #1 to the WLAN add-on module.
    • WARNING: Do not install jumpers for RS232 (J36) and WLAN (J38) at the same time.
  • J41, J42, J44-J46 - USB Device/Host: configures USB channel B as a Device (left position) or a Host (right position).
  • J47 - MCIDAT0 Select: connects P0.22 (upper position) or P1.6 (lower position) to the Data Out (DOUT) pin of the memory card interface.
  • J48 - VBUS Sense: In USB Channel B Host mode, selects the polarity of the VBUS sense.
  • QVGA Jumpers: Settings for the QVGA add-on module.
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