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Configuring the MCB2300

The MCB2300 Evaluation Board is configured using the jumpers J1 - J13. The MCB2300 Board ships with the following configuration:

Jumper State Description
J1 - USB (D-) ON Connects USB Line D- to the USB connector.
J2 - USB (D+) ON Connects USB Line D+ to the USB connector.
J3 - AOUT ON Connects AOUT via LF amplifier to the loudspeaker.
J4 - -- Not used
J5 - UMODE ON Allows soft-connect of the USB device by issuing a software restart via P2.9
J6 - AD0.0 ON Connects POT1 potentiometer to AIN0 for analog input demonstration.
J8 - INT0 ON Enable INT0 Push Button.
J9 - RST ON Enables Reset via COM0.
J10 - ISP OFF Disables In-System Programming via COM0.
J11 - LED ON Enables Port2.0 - Port2.7 LEDs.
J13 - ETM ON Enables the Embedded Trace Macrocell (so that the USB soft-connect and the LED's can be used)


  • Jumper J4 is labelled ETM on Version 2 MCB23xx boards and earlier.
  • Jumper J13 is labelled JTAG on Version 2 MCB23xx boards and earlier.

Configuring for the ULINK USB-JTAG Adapter

The default jumper settings (above) on the MCB2300 board are pre-configured for the ULINK USB-JTAG adapter.

Configuring for Serial ISP Flash Programming

For programming the MCB2300 using the Flash Magic Utility, change the following jumper from the above default settings:

  • J10 — ON
  • J4 & J13 — OFF

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