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Push Buttons

The two push buttons on the MCBx51 board are:

  • The RESET (S1) push button connects to the reset circuit. This resets the microcontroller.
  • INT (S2) connects the INT1 (port 3.3) of the microcontroller when the configuration jumper INT1 (J5) is installed. When the Non-Maskable Interrupt (NMI) jumper is not installed, the INT (S2) button generates an NMI signal to the microcontroller at IC1.

MCBx51 Board Buttons

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