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chipKIT™ uC32™ Board Reference Manual
Revised December 29, 2014
This manual applies to the uC32 rev. B
DOC#: 502-254
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 1 of 17
Overview
The chipKIT uC32 is based on the popular Arduino™ open-source hardware prototyping platform and adds the
performance of the Microchip® PIC32 microcontroller. The uC32 is easy to use and suitable for both beginners and
advanced users experimenting with electronics and embedded control systems. The uC32 is the same form factor
as the Arduino Uno board and is compatible with Arduino shields. It features a USB serial port interface for
connection to the IDE and can be powered via USB or an external power supply. The uC32 board takes advantage
of the powerful PIC32MX340F512 microcontroller, which features a 32-bit MIPS processor core running at 80 MHz,
512K of flash program memory, and 32K of SRAM data memory.
The uC32 can be programmed using the Multi-Platform Integrated Development Environment (MPIDE), an
environment based on the original Arduino IDE modified to support PIC32. It contains everything needed to start
developing embedded applications. In addition, the uC32 is fully compatible with the advanced Microchip MPLAB®
IDE and the PICkit™ 3 in-system programmer/debugger.
The uC32 provides 43 I/O pins that support a number of peripheral functions, such as UART, SPI, and I2C ports and
pulse width modulated outputs. Twelve of the I/O pins can be used as analog inputs or as digital inputs and
outputs.
The chipKIT uC32 board.
Microchip PIC32MX340F512H
microcontroller (80 MHz 32-bit MIPS,
512K Flash, 32K SRAM)
Compatible with many existing Arduino
code samples and other resources
Arduino Uno form factor
Compatible with many Arduino shields
43 available I/O pins
Two user LEDs
PC connection uses a USB A > mini B cable
(not included)
12 analog inputs
3.3V operating voltage
80 MHz operating frequency
75mA typical operating current
7V to 15V input voltage (recommended)
20V input voltage (maximum)
0V to 3.3V analog input voltage range
+/-18mA DC current per pin
Features include:
chipKIT™ uC32™ Board Reference Manual
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Page 2 of 17
1 chipKIT uC32 Hardware Overview
The uC32 has the following hardware features:
1. USB Connector for USB Serial Converter
This connects to a USB port on the PC to provide the communications port for the MPIDE to talk to the
uC32 board. This can also be used to power the uC32 board when connected to the PC.
2. JP3 – Microchip Debug Tool Connector
This connector is used to connect Microchip programmer/debugger tools, such as the PICkit 3. This
allows the uC32 board to be used as a traditional microcontroller development board using the
Microchip MPLAB IDE.
3. J4 – External Power Connector
This is a 5.5mm x 2.1mm barrel connector used to power the uC32 board from an external power
supply. It is wired with the center terminal as the positive supply voltage. The power supply voltage
must be in the range 7V to 15V.
4. Power Supply – 3.3V Regulator
Voltage regulator for the 3.3V power supply. This power supply can provide up to 500mA of current.
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5. JP2 – 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
This on-board 5V voltage regulator 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 expansion 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
The PIC32MX340F512H microcontroller is the main processor for the board.
9. J7 – Analog Signal Connector
This connector provides access to analog/digital I/O pins on the microcontroller.
10. JP6/JP8 – A4/A5 Signal Select Jumpers
These jumpers are used to switch pins 9 and 11 on connector J7 between analog inputs A4 and A5 or
the I2C signals SDA and SCL.
11. J8 – SPI Signal Connector
This connector provides alternative access to the SPI signals. This is used by some shields for access to
the SPI bus.
12. JP5/JP7 – SPI Master/Slave Select Jumpers
These jumpers are used to switch the SPI signals for use of the uC32 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. User LEDs
Two LEDs connected to digital signal pins 13 and 43.
14. J6 – Digital Signal Connector
This connector provides access to digital I/O pins on the microcontroller.
15. JP4 – Pin 10 Signal Select Jumper
This jumper is used to switch connector J5 pin 5 (digital signal 10) between pulse width modulator
(PWM) operation and SPI operation. The jumper is placed in the RD4 position for PWM output and in
the RG9 position for SPI slave operation. The shorting block on this jumper will normally be in the RD4
position. The only time it normally needs to be in the RG9 is when using the Uno32 board as an SPI
slave device.
16. J5 – Digital Signal Connector
This connector provides access to digital I/O pins on the microcontroller.
17. J11 – I2C
Dedicated I2C signals. These pins are independent of the settings of jumpers JP6 and JP8. However, if
JP6 and JP8 are in the RG3 and RG2 position, the I2C signals will be tied to pins A4 and A5 on J7.
chipKIT™ uC32™ Board Reference Manual
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Page 4 of 17
18. Communications Status LEDs
These LEDs indicate activity on the USB serial interface.
19. Reset Button
This button can be used to reset the microcontroller, restarting operation from the boot loader.
2 chipKIT uC32 Jumper Settings
The chipKIT development platforms use a Microchip PIC32 microcontroller. These are 32-bit products that bring
unprecedented features to the Arduino community. In order to maintain compatibility with existing hardware and
software, additional jumpers and row headers are provided. This document describes the functionality of the
jumpers listed in Fig. 1 below.
Figure 1. chipKIT uC32 jumpers.
chipKIT™ uC32™ Board Reference Manual
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Page 5 of 17
Jumper
Function
JP2
POWER SELECT: Used to connect/bypass the on-board 5V regulator when using an
external power supply connected to J4.
J4 supply is regulated (i.e., 5V will be present
on 5V pin).
J4 supply bypasses regulator (i.e., Supply
voltage will be present on 5V pin).
Note: To protect the PIC32 MCU, a 3.3V on-board regulator will always be enabled
regardless of JP2 settings.
Note: If you’re not sure what POWER SELECT does, be safe and keep JP2 on the two right-
most pins so the J4 supply is regulated.
JP4
PWM/SPI SLAVE: Configures pin 10 on J5 to be used as a PWM output or a Slave Select
input for use as an SPI slave device.
Pin 10 configured as an SPI SS input
Pin 10 configured as a PWM output
JP5/JP7
SPI SELECT: Used to configure the chipKIT as either a Master or Slave when using the SPI.
The chipKIT board can be connected to another device or even another chipKIT through
the SPI connector (J8).
chipKIT configured as an SPI master.
chipKIT configured as an SPI Slave
JP6/JP8
I2C/ANALOG PIN SELECT: Used to configure A4 and A5 for functionality as an analog input
or to be used as I2C communication pins.
A4 and A5 on J7 are configured to be used
as analog inputs.
A4 and A5 are configured to be used as I2C
communication lines (A4 – SDA, A5 – SCL ).
chipKIT™ uC32™ Board Reference Manual
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Page 6 of 17
3 chipKIT uC32 Hardware Description
3.1 MPIDE and USB Serial Communications
The uC32 board is designed to be used with the Multi-Platform IDE (MPIDE). MPIDE is a modified version of the
Arduino IDE that supports the PIC32 microprocessors and is backwards-compatible with the Arduino IDE. The
MPIDE uses a serial communications port to communicate with a boot loader running on the uC32 board. The
serial port on the uC32 board is implemented using an FTDI FT232R USB serial converter. Before attempting to use
the MPIDE to communicate with the uC32, the appropriate USB device driver must be installed.
The uC32 board uses a standard mini-USB connector for connection to a USB port on the PC. When the MPIDE
needs to communicate with the uC32 board, the board is reset and starts running the boot loader. The MPIDE then
establishes communications with the boot loader and downloads the program to the board.
When the MPIDE opens the serial communications connection on the PC, the DTR pin on the FT232R chip is driven
low. This pin is coupled through a capacitor to the MCLR pin on the PIC32 microcontroller. Driving the MCLR line
low resets the microcontroller, restarting execution with the boot loader.
This automatic reset action (when the serial communications connection is opened) can be disabled. To disable
this operation, there is a cuttable trace on the bottom of the board between the pins on JP1. JP1 is normally not
loaded. If the trace between the pins on JP1 has been cut, the automatic reset operation can be restored by
loading JP1 and inserting a shorting block across it.
Two red LEDs (LD1 and LD2) will blink when data is being sent or received between the uC32 and the PC over the
serial connection.
The header connector J3 provides access to the other serial handshaking signals provided by the FT232R.
Connector J3 is not loaded at the factory and can be installed by the user to access these signals.
3.2 Power Supply
The uC32 is designed to be powered either via USB or from an external power supply. There is an automatic
switch-over circuit that causes the external supply to be used if both supplies are present.
The power supply section in the uC32 uses two voltage regulators. The first regulates the external voltage to 5V to
power the VCC5V0 bus. The second regulates the VCC5V0 bus to 3.3V to provide power to the VCC3V3 bus that
powers the PIC32 microcontroller.
The 5V voltage regulator is normally an NCP1117. The board is designed to be able to also use an LM1117, but the
NCP1117 is the part normally used. The NCP1117 is rated for an output current of 1A (the LM1117 is rated for
800mA). The dropout voltage of the NCP1117 is a maximum of 1.2V at the rated output current (1.3V for the
LM1117).
There is a reverse polarity protection diode in the external power supply circuit. Considering the diode drop plus
the forward drop across the regulator, the minimum input voltage to the regulator should be 7V to produce a
reliable 5V output. The absolute maximum input voltage of both the NCP1117 and the LM1117 is 20V. The
recommended maximum operating voltage is 15V.
chipKIT™ uC32™ Board Reference Manual
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Page 7 of 17
For input voltages above 9V, the regulator will get extremely hot when drawing high currents. Both the NCP1117
and the LM1117 have output short circuit protection and internal thermal protection and will shut down
automatically to prevent damage.
The 3.3V regulator is a Microchip MCP1725. This regulator is rated for a maximum output current of 500mA. The
absolute maximum input voltage for the MCP1725 is 6V. This regulator has internal short circuit protection and
thermal protection. It will get noticeably warm when the current consumed by the VCC3V3 bus is close to the
500mA maximum.
The 5V power bus, VCC5V0, can be powered from one of three sources:
The USB5V0 bus when the board is operating under USB power
The output of the on-board 5V regulator when operating from an external 7V-15V supply
Directly from the external supply when operating from a regulated 5V external supply with jumper JP2 in
the BYP position
Switch-over from USB power to external power is done automatically and the external supply will be used if both
are present.
Jumper JP2 is used to route the external power supply voltage through the on-board 5V regulator or directly to the
VCC5V0 bus, bypassing the on-board 5V regulator. Normally, JP2 is in the REG position. This routes the external
supply through the 5V regulator. Operation from an externally regulated 5V supply is provided by placing the
jumper in the BYP position.
The forward drop across the MCP1725 is typically 210mV (350mV max) at 500mA output. With JP2 in the BYP
position, this will allow correct operation of the 3.3V power supply from an input voltage down to 3.5V. This lets
you power the board from batteries and other lower voltage power sources. In that case, the VCC5V0 power bus
will not be powered at 5V.
Note: When JP2 is in the BYP position, do not apply more than 6V to the external power input. This can destroy the
3.3V regulator and possibly the PIC32 microcontroller as well.
The PIC32 microcontroller is rated to use a maximum of 75mA of current when operating at 80 MHz. This allows up
to 425mA from the VCC3V3 bus and up to 925mA from the VCC5V0 bus to power external devices.
The POWER connector, J2, is used to power shields connected to the uC32 board. The following pins are provided
on this connector:
NC (pin 1): This pin is not used.
IOR (pin 2): Provides a 3.3v reference voltage to the shield which the shield should observe as the maximum
input pin voltage to the uC32.
P32_RST (pin 3): This connects to the MCLR pin on the PIC32 microcontroller and can be used to reset the PIC32.
VCC3V3 (pin 4): This routes the 3.3V power bus to shields. This pin can provide ~425mA.
VCC5V0 (pin 5): This routes the 5V power bus to shields. This pin can provide up to ~900mA to shields, however,
the total provided by pins 2 and 3 shouldn’t exceed 925mA.
GND (pin 6, 7): This provides a common ground connection between the uC32 and the shields.
VIN (pin 8): This connects to the voltage provided at the external power supply connector. This can be used to
provide unregulated input power to the shield. It can also be used to power the uC32 board from the shield
instead of from the external power connector.
chipKIT™ uC32™ Board Reference Manual
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Page 8 of 17
3.3 5V Compatibility
The PIC32 microcontroller operates at 3.3V. The original Arduino boards operate at 5V, as do many Arduino
shields. There are two issues to consider when dealing with 5V compatibility for 3.3V logic. The first is protection of
3.3V inputs from damage caused by 5V signals. The second is whether the 3.3V output is high enough to be
recognized as a logic high value by a 5V input.
The digital I/O pins on the PIC32 microcontroller are 5V tolerant. The analog capable I/O pins are not 5V tolerant.
To provide 5V tolerance on those pins, the uC32 contains clamp diodes and current limiting resistors to protect
them from 5V input voltages. The fact that all I/O pins are 5V tolerant means that it is safe to apply 5V logic levels
to any pins on the board without risk of damaging the PIC32 microcontroller.
The minimum high-voltage output of the PIC32 microcontroller is rated at 2.4V when sourcing 12mA of current.
When driving a high impedance input (typical of CMOS logic) the output high voltage will be close to 3.3V. Some 5V
devices will recognize this voltage as a logic high input, and some won’t. Many 5V logic devices will work reliably
with 3.3V inputs.
3.4 Input/Output Connections
The uC32 board provides 43 of the I/O pins from the PIC32 microcontroller to pins on the input/output connectors
J5, J6, and J7.
The PIC32 microcontroller can source or sink a maximum of 18mA on all digital I/O pins. However, to keep the
output voltage within the specified voltage range (VOL 0.4V, VOH 2.4V) the pin current must be restricted to +7/-
12mA. The maximum current that can be sourced or sunk across all I/O pins simultaneously is +/-200mA. The
maximum voltage that can be applied to any I/O pin is 5.5V. For more detailed specifications, refer to the
PIC32MX3XX/4XX data sheet available from the Microchip website.
Connectors J5 and J6 are 2x8 female pin header connectors that provide digital I/O signals. The outer row of pins
(closer to the board edge) corresponds to the I/O connector pins on an Arduino Uno or Duemilanove board. The
inner row of pins provides access to the extra I/O signals provided by the PIC32 microcontroller.
Connector J7 is a 2x6 female pin header connector that provides access to the analog input pins on the
microcontroller. The outer row of pins corresponds to the six analog pins on an Arduino Uno or Duemilanove. The
inner row of pins are the additional I/O signals provided by the PIC32 microcontroller. The analog pins on J7 can
also be used as digital I/O pins.
The chipKIT/Arduino system uses logical pin numbers to identify digital I/O pins on the connectors. The logical pin
numbers for the I/O pins on the uC32 are 0-41. These pin numbers are labeled in the silk screen on the board.
Pin numbers 0-13 are the outer row of pins on J6 and J5, from right to left. Pin numbers 14-19 are the outer row of
pins on J7 from left to right. Pins 20-25 are the inner row of pins on J7 from left to right. Pin numbers 26-41 are the
inner row of pins on J6 and J5 from right to left. The pin labeled A is normally the reference voltage for the
microcontroller's A/D converter, but can also be used as a digital I/O pin via digital pin 42.
In addition to the connector pin, Pin 13 also connects to the user LED LD4. Pin 43 connects to user LED LD5. Pin 43
pin does not go to any connector.
The analog inputs on connector J7 are assigned pin numbers. The outer row of pins on J7 are analog inputs A0-A5.
The inner row of pins are A6-A11. These pins are also assigned digital pin numbers: A0-A5 are digital pins 14-19,
and A6-A11 are 20-25.
chipKIT™ uC32™ Board Reference Manual
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3.5 Peripheral I/O Functions
The PIC32 microcontroller on the uC32 board provides a number of peripheral functions. The following peripherals
are provided:
UART port 1: Asynchronous serial port. Pin 0 (RX), Pin 1 (TX). These pins are connected to I/O connector J6 and are
also connected to the FT232R USB serial converter. It is possible to use these pins to connect to an external serial
device when not using the USB serial interface. This uses UART1 (U1RX, U1TX) on the PIC32 microcontroller.
UART port 2: Asynchronous serial port. Pin 39 (RX), Pin 40 (TX). This uses UART2 (U2RX, U2TX) on the PIC32
microcontroller.
SPI: Synchronous serial port. Pin 10 (SS), Pin 11 (MOSI), Pin 12 (MISO), Pin 13 (SCK). This uses SPI2 (SS2, SDI2,
SDO2, SCK2) on the PIC32 microcontroller These signals also appear on connector J8.
Jumpers JP5 and JP7 are used to select whether the uC32 operates as a Master (transmit on MOSI, receive on
MISO) or a Slave (transmit on MISO, receive on MOSI) device. The shorting blocks on JP5 and JP7 are normally
placed in the Master position for the uC32 to function as an SPI master.
Jumper JP4 is used to select PWM output or the SPI SS function on Pin 10. The shorting block on JP4 should be in
the RD4 position to select PWM output. It should be in the RG9 position to select the SPI SS function. JP4 will
normally be in the RD4 position. In general, the only time it needs to be in the RG9 position is when the uC32
board is being used as an SPI slave device.
I2C: Synchronous serial interface. The dedicated I2C signals can be found on J11. In addition, the PIC32
microcontroller shares analog pins A4 and A5 with the two I2C signals SDA and SCL. Jumpers JP6 and JP8 are used
to select whether the analog pin functions or the I2C pin functions are being used. The shorting blocks are placed in
the A4/A5 position to select the analog input function or general digital I/O. They are placed in the RG3/RG2
position to use the pins for I2C operation. This uses I2C1 (SDA1, SCL1) on the PIC32 microcontroller.
Note: The I2C bus uses open collector drivers to allow multiple devices to drive the bus signals. This means that
pull-up resistors must be provided to supply the logic high state for the signals. These pull-up resistors are not on
the uC32 board and must be provided externally. The required resistance of the pull-up resistor to use depends on
the total number of devices on the bus, the length of wire, and the clock speed being used. It essentially depends
on distributed capacitance on the bus. The higher the distributed capacitance and the faster the clock speed, the
smaller the resistance should be. Values typically used are in the range of 2K to 10K ohms.
PWM: Pulse width modulated output. Pins 3 (OC1), 5 (OC2), 6 (OC3), 9 (OC4), and 10 (OC5).
External Interrupts: Pin 38 (INT0), Pin 2 (INT1), Pin 7 (INT2), Pin 8 (INT3), Pin 35 (INT4)
User LEDs: Pin 13 (LD4), Pin 43 (LD5). Pin 13 is shared between a connector pin and the LED. Pin 43 only goes to
the LED and not any connector pin. Driving the pin high turns the LED on, driving it low turns it off.
A/D Converter Reference: Labeled A, the left-most outer pin on connector J5. This is used to provide an external
voltage reference to determine the input voltage range of the analog pins. The maximum voltage that can be
applied to this pin is 3.3V. This pin can also be used as digital pin 42.
RTCC: Real Time Clock Calendar. The PIC32 microcontroller contains an RTCC circuit that can be used to maintain
time and date information. The operation of the RTCC requires a 32.768 KHz frequency source. Crystal X2 (not
loaded), just above and to the right of the PIC32 microcontroller IC, is provided for you to solder a 32 KHz watch
crystal. The Citizen CFS206-32.768KDZF-UB crystal can be used in this location.
RESET: The PIC32 microcontroller is reset by bringing its MCLR pin low. The MCLR pin is connected to the P32_RST
net on the circuit board.
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Page 10 of 17
As described earlier, reset of the PIC32 microcontroller can be initiated by the USB serial converter. The USB serial
converter brings the DTR pin low to reset the microcontroller. Jumper JP1 can be used to enable/disable the ability
for the USB serial converter to initiate a reset.
The P32_RST net is connected to pin 3 of connector J2. This allows circuitry on a shield to reset the
microcontroller, or to ensure that the circuitry on the shield is reset at the same time as the microcontroller.
Connector J8 provides access to the SPI bus. Pin 5 provides access to the SPI Slave Select signal (SS).
On Arduino boards, the corresponding connector is also used as an in-system programming connector as well as
providing access to some of the SPI signals. On Arduino boards, pin 5 of this connector is connected to the reset
net.
Some Arduino shields, notably the Ethernet shield, connect pin 5 to the reset net on pin 3 of connector J2. This
causes the processor to be reset each time an attempt is made to access the SPI port. Jumper JP9 can be used to
break the connection between J8 pin 5 and reset when using Arduino shields that make this connection. JP9 has a
cuttable trace on the bottom of the board that can be cut to break the connection between SPI SS and reset. JP9 is
not loaded at the factory. To restore the connection, solder a two pin header at the JP9 position and install a
shorting block. A reset button is at the upper left corner of the board. Pressing this button resets the PIC32
microcontroller.
3.6 Microchip Development Tool Compatibility
In addition to being used with the MPIDE, the uC32 board can be used as a more traditional microcontroller
development board using Microchip Development Tools.
Unloaded connector JP3 on the left side of the board is used to connect to a Microchip development tool, such as
the PICkit3™, for in-circuit serial programming (ICSP). The holes for JP3 are staggered so that a standard 100-mil
spaced 6-pin header can be press fit to the board without the need to solder it in place. Any Microchip
development tool that supports the PIC32 microcontroller family, and can be connected via the same 6-pin
interface as the PICkit3, can be used.
Typically, a right-angle male connector is used in JP3 so that a PICkit3 can be attached coplanar with the uC32
board. If the connector is loaded from the top, the PICkit3 will be upright (button and LEDs visible). Alternatively,
the connector can be loaded from the bottom. In this case, the PICkit3 will be upside down.
If JP3 is loaded from the top, the PICkit3 will interfere with the USB connector and the external power connector. A
short six-wire cable can be used between the PICkit3 and the uC32. If JP3 is loaded from the bottom, the PICkit3
won’t interfere with the USB and external power connectors.
The Microchip MPLAB® IDE or the MPLAB® X IDE can be used to program and debug code running on the uC32
board. These programs can be downloaded from the Microchip web site.
Using the Microchip development tools to program the uC32 board will cause the boot loader to be erased. To use
the board with the MPIDE again, it is necessary to program the boot loader back onto the board. The boot loader
image can be downloaded from the Digilent Uno32 product page.
chipKIT™ uC32™ Board Reference Manual
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Page 11 of 17
3.7 Pinout Tables
The following tables give the relationship between the chipKIT digital pin numbers, the connector pin numbers and
the microcontroller pin numbers. In the following tables, columns labeled chipKIT pin # refer to the digital pin
number. This is the value that is passed to the pinMode(), digitalRead(), digitalWrite(), and other functions to refer
to the pin.
For most pins, this pin number will agree with the pin number labeled on the board. For the pins whose function
can be switched using jumpers, the pin number labeled on the board is correct when the jumper is in the 'normal'
position.
For example, the normal position for JP4 is the RD4 position. The digital pin number for the microcontroller signal
RD4 is 10. With JP4 in the RD4 position, digital pin 10 is connected to the pin labeled 10 on the board. The
alternate position for JP4 is the RG9 position. The digital pin number for the microcontroller signal RG9 is 44. With
JP4 in the RG9 position, digital pin 44 is connected to the pin labeled 10 on the board, and digital pin 10 is not
connected.
The pin labeled 10 on the board is connected to connector J5 pin 5. This is shown as J5-05 in the following tables.
In the ‘Pinout Table by Shield Connector Pin’ table below, J5-05 is shown has being either chipKIT pin # 10 or 44.
J5-04 is connected to chipKIT pin # 10 when JP4 is in the RD4 position and is connected to chipKIT pin # 44 when in
the RG9 position.
3.7.1 Pinout Table by Logical Pin Number
chipKIT Pin #
Connector Pin #
PIC32 Pin #
PIC32 Signal
Notes
0
J6-01
34
U1RX/SDI1/RF2
1
J6-03
33
U1TX/SDO1/RF3
2
J6-05
42
IC1/RTCC/INT1/RD8
3
J6-07
46
OC1/RD0
4
J6-09
59
RF1
5
J6-11
49
OC2/RD1
6
J6-13
50
OC3/RD2
7
J6-15
43
IC2/U1CTS/INT2/RD9
8
J5-01
44
IC3/PMCS2/PMA15/INT3/RD10
9
J5-03
51
OC4/RD3
10
J5-05
52
PMWR/OC5/IC5/CN13/RD4
Selected by JP4,
also on J8-6
11
J5-07
6
SDO2/PMA3/CN10/RG8
Selected by JP5,
also on J8-1
12
J5-09
5
SDI2/PMA5/CN8/RG7
Selected by JP7,
also on J8-4
13
J5-11
4
SCK2/PMA5/CN8/RG6
Also on J8-3, User
LED LD4r
14/A0
J7-01
14
C2IN-/AN2/SS1/CN4/RB2
15/A1
J7-03
12
C1IN-/AN4/CN6/RB4
16/A2
J7-05
21
U2CTS/C1OUT/AN8/RB8
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 12 of 17
chipKIT Pin #
Connector Pin #
PIC32 Pin #
PIC32 Signal
Notes
17/A3
J7-07
23
TMS/CVREFOUT/PMA13/AN10/RB10
18/A4
J7-09
27
TCK/PMA11/AN12/RB12
Selected by JP6
19/A5
J7-11
29
PMALH/PMA1/U2RTS/AN14/RB14
Selected by JP8
20/A6
J7-02
13
C2IN+/AN3/CN5/RB3
21/A7
J7-03
11
C1IN+/AN5/CN7/RB5
22/A8
J7-06
22
PMA7/C2OUT/AN9/RB9
23/A9
J7-08
24
TDO/PMA12/AN11/RB11
24/A10
J7-10
28
TDI/PMA10/AN13/RB13
25/A11
J7-12
30
PMALL/PMA0/AN15/OCFB/CN12/RB1
5
26
J6-02
60
PMD0/RE0
27
J6-04
61
PMD1/RE1
28
J6-06
62
PMD2/RE2
29
J6-08
63
PMD3/RE3
30
J6-10
64
PMD4/RE4
31
J6-12
1
PMD5/RE5
32
J6-14
2
PMD6/RE6
33
J6-16
3
PMD7/RE7
34
J5-02
53
PMRD/CN14/RD5
35
J5-04
45
IC4/PMCS1/PMA14/INT4/RD11
36
J5-06
54
CN15/RD6
37
J5-08
55
CN16/RD7
38
J5-10
35
U1RTS/BCLK1/SCK1/INT0/RF6
39
J5-12
31
PMA9/U2RX/SDA2/CN17/RF4
40
J5-14
32
PMA8/U2TX/SCL2/CN18/RF5
41
J5-16
15
PGC1/AN1/VREF-/CVREF-/CN3/RB1
42
J5-15
16
PGED1/PMA6/AN0/VREF+/CVREF+/C
N2/RB0
43
N/A
58
RF0
User LED LD5
44
J5-05
8
PMA2/SS2/CN11/RG9
Selected by JP4,
also on J8-6
45
J11-1, J7-09
36
SDA1/RG3
Selected by JP6
46
J11-2, J7-11
37
SCL1/RG2
Selected by JP8
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 13 of 17
3.7.2 Pinout Table By Shield Connector Pin
Connector Pin #
chipKIT Pin #
PIC32 Pin #
PIC32 Signal
Notes
J5-01
8
44
IC3/PMCS2/PMA15/INT3/RD10
J5-02
34
53
PMRD/CN14/RD5
J5-03
9
51
OC4/RD3
J5-04
35
45
IC4/PMCS1/PMA14/INT4/RD11
J5-05
10 or 44
52 or 8
(PMWR/OC5/IC5/CN13/RD4) or
(SS2/PMA2/CN11/RG9)
selected by JP4, also
on J8-6
J5-06
36
54
CN15/RD6
J5-07
11 or 12
6 or 5
(SDO2/PMA3/CN10/RG8) or
(SDI2/PMA5/CN8/RG7)
selected by JP5, also
on J8-1
J5-08
37
55
CN16/RD7
J5-09
12 or 11
5 or 6
(SDI2/PMA5/CN8/RG7) or
(SDO2/PMA3/CN10/RG8)
selected by JP7, also
on J8-4
J5-10
38
35
U1RTS/BCLK1/SCK1/INT0/RF6
J5-11
13
4
SCK2/PMA5/CN8/RG6
also on J8-3, user LED
LD4
J5-12
39
31
PMA9/U2RX/SDA2/CN17/RF4
J5-13
GND
J5-14
40
32
PMA8/U2TX/SCL2/CN18/RF5
J5-15
42
16
PGED1/PMA6/AN0/VREF+/CVREF
+/CN2/RB0
J5-16
41
15
PGC1/AN1/VREF-/CVREF-
/CN3/RB1
J6-01
0
34
U1RX/SDI1/RF2
J6-02
26
60
PMD0/RE0
J6-03
1
33
U1TX/SDO1/RF3
J6-04
27
61
PMD1/RE1
J6-05
2
42
IC1/RTCC/INT1/RD8
J6-06
28
62
PMD2/RE2
J6-07
3
46
OC1/RD0
J6-08
29
63
PMD3/RE3
J6-09
4
59
RF1
J6-10
30
64
PMD4/RE4
J6-11
5
49
OC2/RD1
J6-12
31
1
PMD5/RE5
J6-13
6
50
OC3/RD2
J6-14
32
2
PMD6/RE6
J6-15
7
43
IC2/U1CTS/INT2/RD9
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 14 of 17
3.7.3 Pinout Table by PIC32 Microcontroller Pin
Connector Pin #
chipKIT Pin #
PIC32 Pin #
PIC32 Signal
Notes
J6-16
33
3
PMD7/RE7
J7-01
A00/14
14
C2IN-/AN2/SS1/CN4/RB2
J7-02
A06/20
13
C2IN+/AN3/CN5/RB3
J7-03
A01/15
12
C1IN-/AN4/CN6/RB4
J7-03
A07/21
11
C1IN+/AN5/CN7/RB5
J7-05
A02/16
21
U2CTS/C1OUT/AN8/RB8
J7-06
A08/22
22
PMA7/C2OUT/AN9/RB9
J7-07
A03/17
23
TMS/CVREFOUT/PMA13/AN10/R
B10
J7-08
A09/23
24
TDO/PMA12/AN11/RB11
J7-09
A04/18 or 45
27 or 36
(TCK/PMA11/AN12/RB12) or
(SDA1/RG3)
Selected by JP6
J7-10
A10/24
28
TDI/PMA10/AN13/RB13
J7-11
A05/19 or 46
29 or 37
(PMALH/PMA1/U2RTS/AN14/RB1
4) or (SCL1/RG2)
Selected by JP8
J7-12
A11/25
30
PMALL/PMA0/AN15/OCFB/CN12/
RB15
J11-1
45
36
SDA1/RG3
J11-2
46
37
SCL1/RG2
PIC32 Pin #
Connector Pin #
chipKIT Pin #
PIC32 Signal
Notes
1
J6-12
31
PMD5/RE5
2
J6-14
32
PMD6/RE6
3
J6-16
33
PMD7/RE7
4
J5-11
13
SCK2/PMA5/CN8/RG6
Also on J8-3, User LED
LD4
5
J5-09 or J5-07
12
SDI2/PMA5/CN8/RG7
Selected by JP7/JP5,
also on J8-1
6
J5-07 or J5-09
11
SDO2/PMA3/CN10/RG8
Selected by JP5/JP7,
also on J8-4
7
JP3-01
MCLR
PIC32 reset, ICSP signal
8
J5-05
44
SS2/PMA2/CN11/RG9
Selected by JP4, also on
J8-6
9
VSS
10
VDD
11
J7-03
A07/21
C1IN+/AN5/CN7/RB5
12
J7-03
A01/15
C1IN-/AN4/CN6/RB4
13
J7-02
A06/20
C2IN+/AN3/CN5/RB3
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 15 of 17
PIC32 Pin #
Connector Pin #
chipKIT Pin #
PIC32 Signal
Notes
14
J7-01
A00/14
C2IN-/AN2/SS1/CN4/RB2
15
J5-16
41
PGC1/AN1/VREF-/CVREF-
/CN3/RB1
16
J5-15
42
PGED1/PMA6/AN0/VREF+/CVR
EF+/CN2/RB0
17
JP3-05
PGEC2/AN8/OCFARB6
ICSP signal
18
JP3-04
PGED2/AN7/RB7
ICSP signal
19
AVDD
20
AVSS
21
J7-05
A02/16
U2CTS/C1OUT/AN8/RB8
22
J7-06
A08/22
PMA7/C2OUT/AN9/RB9
23
J7-07
A03/17
TMS/CVREFOUT/PMA13/AN10
/RB10
24
J7-08
A09/23
TDO/PMA12/AN11/RB11
25
VSS
26
VDD
27
J7-09
A04/18
TCK/PMA11/AN12/RB12
selected by JP6
28
J7-10
A10/24
TDI/PMA10/AN13/RB13
29
J7-11
A05/19
PMALH/PMA1/U2RTS/AN14/R
B14
selected by JP8
30
J7-12
A11/25
PMALL/PMA0/AN15/OCFB/CN
12/RB15
31
J5-12
39
PMA9/U2RX/SDA2/CN17/RF4
32
J5-14
40
PMA8/U2TX/SCL2/CN18/RF5
33
J6-03
1
U1TX/SDO1/RF3
34
J6-01
0
U1RX/SDI1/RF2
35
J5-10
38
U1RTS/BCLK1/SCK1/INT0/RF6
36
J7-09, J11-1
45
SDA1/RG3
selected by JP6
37
J7-11, J11-2
46
SCL1/RG2
selected by JP8
38
VDD
39
OSC1/CLKI/RC12
X1, system clock
oscillator
40
OSC2/CLKO/RC15
X1, system clock
oscillator
41
VSS
42
J6-05
2
IC1/RTCC/INT1/RD8
43
J6-15
7
IC2/U1CTS/INT2/RD9
44
J5-01
8
IC3/PMCS2/PMA15/INT3/RD10
45
J5-04
35
IC4/PMCS1/PMA14/INT4/RD11
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 16 of 17
CHIPKIT and the CHIPKIT Logo are trademarks or registered trademarks of Microchip Technology Incorporated in
the U.S. and other countries, and are used under license.
PIC32 Pin #
Connector Pin #
chipKIT Pin #
PIC32 Signal
Notes
46
J6-07
3
OC1/RD0
47
SOSCI/CN1/RC13
X2, secondary oscillator
48
SOSCO/T1CK/CN0/RC14
X2, secondary oscillator
49
J6-11
5
OC2/RD1
50
J6-13
6
OC3/RD2
51
J5-03
9
OC4/RD3
52
J5-05
10
PMWR/OC5/IC5/CN13/RD4
selected by JP4
53
J5-02
34
PMRD/CN14/RD5
54
J5-06
36
CN15/RD6
55
J5-08
37
CN16/RD7
56
VCAP/VDDcore
57
ENVREG
58
43
RF0
User LED LD5
59
J6-09
4
RF1
60
J6-02
26
PMD0/RE0
61
J6-04
27
PMD1/RE1
62
J6-06
28
PMD2/RE2
63
J6-08
29
PMD3/RE3
64
J6-10
30
PMD4/RE4
chipKIT™ uC32™ Board Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 17 of 17
Declaration of Conformity
In accordance with EN ISO/IEC 17050-1:2010
Manufacturers Name: Digilent, Inc.
Manufacturers Address: 1300 NE Henley Court
Pullman, WA 99163
U.S.A.
Application of Council Directives:
EMC 2004/108/EC
Standards:
EMC EN55022:2010
EN55024:2010
Product Name: chipKIT uC32
Product Model Number: Digilent P/N 210-254
Digilent Product Category: Small Form Factor Microcontroller Boards
We, the undersigned, hereby declare that the equipment specified above conforms to the
above Directives and Standards.
Location: _Pullman, WA______ Signature: Clint Cole_______
Date: _October 16, 2012___ Full Name (print): Clint Cole
Title: President_________
