Digilent chipKIT Max32 Reference Manual page 3

chipKIT Max32 Reference Manual
5) JP1 – Power Select Jumper
This jumper is used to route power from the external power connector through the on-
board 5V voltage regulator or to bypass the 5V regulator. The REG position routes power
through the 5V regulator. The BYP position bypasses the on-board 5V regulator. With this
jumper in the BYP position the maximum input voltage that can be applied at the external
power connector is 6V.
6) Power Supply – 5V regulator
On-Board 5V voltage regulator. This regulates the input voltage applied at the external
power connector to 5V. This is used to power the 3.3V regulator and to provide 5V power
to shields. This regulator can provide up to 800mA of current.
7) J2 – Shield Power Connector
This connector provides power to I/O expansion shields connected to the board.
8) PIC32 Microcontroller
This is the PIC32MX795F512L microcontroller that is the main processor for the board.
9) J5, J7 – Analog Signal Connectors
These connectors provides access to analog/digital I/O pins on the microcontroller.
10) J6, J8, J9, J15 – Digital Signal and Power Connectors
These are shown as four connectors in the Max32 schematic. There is a single connector
loaded across all four when the board is assembled. These provide 5V power, ground, and
access to digital I/O pins on the microcontroller to shields connected to the board.
11) User LED
An LED connected to digital signal pin 13.
12) JP3/JP4 – SPI Master/Slave Select Jumpers
These jumpers are used to switch the SPI signals for use of the Max32 board as an SPI
master device or as an SPI slave device. Both jumpers should be switched together. Place
the shorting blocks in the MASTER position for master operation and in the SLAVE
position for slave operation. Normally, these jumpers are in the MASTER position.
13) J13 – SPI Signal Connector
This connector provides alternative access to the SPI signals. This is used by some
shields for access to the SPI bus.
14) J3, J4, J14 – Digital Signal Connectors
These connectors provides access to digital I/O pins on the microcontroller.
15) Communications Status LEDs
These LEDs indicate activity on the USB serial interface.
16) Reset Button
This button can be used to reset the microcontroller, restarting operation from the boot
loader.
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