Microchip Technology PIC32CM LE00 User manual

PIC32CM LE00/LS00/LS60
PIC32CM LE00/LS00/LS60 Curiosity Pro User Guide
Preface
The Microchip® PIC32CM LE00, PIC32CM LS00, and PIC32CM LS60 Curiosity Pro evaluation kits are hardware
platforms for evaluating the PIC32CM LE00/LS00/LS60 microcontrollers (MCUs). Each evaluation kit is supported by
the MPLAB® X Integrated Development Environment (IDE) and MPLAB Harmony v3 featuring application examples.
The Curiosity Pro evaluation kits include an on-board embedded debugger to program or debug the target
microcontroller. This enables an easy start to a project, and provides application examples that can be used in
the design of a custom application.
The Curiosity Pro evaluation kits provide easy access to the features of the microcontroller, and are integrated
with Arduino Uno, mikroBUS™, and extension headers to interface with Xplained Pro extension boards for a rapid
prototyping and expanded functionality.
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 1

Table of Contents
Preface........................................................................................................................................................... 1
1. Introduction............................................................................................................................................. 3
1.1. Features....................................................................................................................................... 3
1.2. Overview of Available Kits............................................................................................................3
2. Getting Started........................................................................................................................................ 7
3. Curiosity Pro............................................................................................................................................8
3.1. Embedded Debugger................................................................................................................... 8
3.2. Curiosity Pro Embedded Current Measurement Circuitry (XAM)................................................. 9
4. Hardware User Guide............................................................................................................................11
4.1. Power Sources........................................................................................................................... 11
4.2. Headers and Connectors........................................................................................................... 12
4.3. Peripherals................................................................................................................................. 20
4.4. Embedded Debugger Implementation........................................................................................22
4.5. Embedded Current Measurement Circuitry (XAM) Configuration.............................................. 24
5. Product Identifier and Revision............................................................................................................. 25
6. Revision History.................................................................................................................................... 26
The Microchip Website.................................................................................................................................27
Product Change Notification Service............................................................................................................27
Customer Support........................................................................................................................................ 27
Microchip Devices Code Protection Feature................................................................................................ 27
Legal Notice................................................................................................................................................. 27
Trademarks.................................................................................................................................................. 28
Quality Management System....................................................................................................................... 28
Worldwide Sales and Service.......................................................................................................................29
PIC32CM LE00/LS00/LS60
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 2

1. Introduction
1.1 Features
The following are key features of the board:
• PIC32CM5164LE00100, PIC32CM5164LS00100, and PIC32CM5164LS60100 microcontrollers
• One mechanical reset button
• Two mechanical programmable buttons
• Two user LEDs (green and red)
• One Touch button
• One Potentiometer
• 32.768 kHz oscillator
• 12 MHz oscillator
• USB interface, Host or Device
• Three extension headers compatible with a wide range of Xplained Pro extension kits
• mikroBUS header connector
• Arduino Uno header connectors
• 10-pin Cortex® Debug header (SWD)
• 8-pin PICkit 4 Interface header (SWD)
• Embedded debugger (EDBG)
– Auto ID for board identification in MPLAB X IDE
– One status LED (yellow)
– One board power LED (green)
– Symbolic debug of complex data types, including scope information
– Programming and debugging, including power measurements
– Data Gateway Interface: SPI, I2C, four GPIOs
– Virtual COM port (CDC)
• Embedded current measurement circuitry (XAM) with MPLAB Data Visualizer support for data visualization
• USB powered
• Power Header for external power source
• Supported with application examples in MPLAB Harmony v3
1.2 Overview of Available Kits
The following are part numbers of the three evaluation kits:
• PIC32CM LE00 Curiosity Pro – EV80P12A
• PIC32CM LS00 Curiosity Pro – EV12U44A
• PIC32CM LS60 Curiosity Pro – EV76R77A
The evaluation kit offers a set of features that enables the user to start with the microcontroller peripherals
immediately and to obtain an understanding of how to integrate the device in their design.
PIC32CM LE00/LS00/LS60
Introduction
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 3

Figure 1-1. PIC32CM LE00/LS00/LS60 Curiosity Pro Evaluation Board Layout (Top View)
1
23 84
9
10
10
85
13
11
11
12
12
12
12
12
6
11 7
14
15
PIC32CM LE00/LS00/LS60
Introduction
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 4

Figure 1-2. PIC32CM LE00/LS00/LS60 Curiosity Pro Evaluation Board Layout (Bottom View)
16
17
PIC32CM LE00/LS00/LS60
Introduction
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 5

Table 1-1. PIC32CM LE00/LS00/LS60 Curiosity Pro Board Features and Location
Number Item Description
1 PIC32CM LE00/LS00/LS60
2 Reset button
3 EDBG USB power supply
4 USB interface, Host and device
5 Power Header for external power source
6 Touch button
7 Potentiometer
8 Programmable buttons
9 User LEDs (Green and Red)
10 mikroBUS header connector
11 Extension headers
12 Arduino Uno header connectors
13 10-pin Cortex Debug header (SWD)
14 8-pin PICkit™ 4 Interface header (SWD)
15 Embedded Current Measurement jumpers
16 Embedded Debugger (EDBG)
17 Embedded Current Measurement (XAM)
Table 1-2. PIC32CM LE00/LS00/LS60 Microchip Total System Solutions (TSS)
TSS Components Quantity (per board) Function
PIC32CM5164LE00100-I/PF
PIC32CM5164LS00100-I/PF
PIC32CM5164LS60100-I/PF-PROTO
1(1) Target MCU
DSC6083CE2A-032K768 1 External 32.768 kHz Oscillator
DSC6003JI2B-012.0000 1 External 12 MHz Oscillator
MIC5528-3.3YMT-T5 2 LDO for 3.3V DC Output
AT32UC3A4256J-C1UR 1 Embedded Debugger (EDBG) MCU
ATSAMD20E17A-AUT 1 Current Measurement (XAM) MCU
Note:
1. Only one target MCU per kit.
PIC32CM LE00/LS00/LS60
Introduction
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 6

2. Getting Started
Follow these steps to explore the Curiosity Pro platform:
1. Download MPLAB X IDE.
2. Launch MPLAB X IDE.
3. Connect the DEBUG USB port on the kit to the computer using a USB cable (Standard-A to Micro-B, or
Micro-AB).
Note: When the Curiosity Pro MCU kit is connected to the computer for the first time, the operating system will
install the software driver. The software driver supports both 32-bit and 64-bit versions of Microsoft® Windows®XP,
Windows Vista®, Windows 7, Windows 8, and Windows 10.
When the Curiosity Pro MCU board is powered, the power LED (green) will glow and MPLAB X IDE will auto-detect
the specific Curiosity Pro MCU and extension boards that are connected to it. MPLAB X IDE will present relevant
information, such as data sheets and kit documentation.
The PIC32CM LE00/LS00/LS60 devices can be programmed and debugged by the on-board embedded debugger
(EDBG), hence external programmer or debugger tool is not required.
Note: Users can connect external debugger tools using the Cortex-M Debugger or the PICkit™ 4 Interface headers.
PIC32CM LE00/LS00/LS60
Getting Started
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 7

3. Curiosity Pro
The Curiosity Pro is a user-friendly rapid prototyping platform. It is supported with MPLAB X IDE and MPLAB
Harmony v3 software development framework that comes with demonstration codes, middleware, PLIBs, and drivers.
The Curiosity Pro evaluation kits support a wide range of extension boards which are connected through a set of
standardized headers and connectors. Each extension board has an identification (ID) chip to uniquely identify which
boards are connected to the Curiosity Pro evaluation kit. When an extension board is connected, some relevant
information, such as board features, supported interfaces, serial number, links to documentation, and so on is read
and displayed on the MPLAB X IDE kit window.
3.1 Embedded Debugger
The Curiosity Pro contains Embedded Debugger (EDBG) for on-board debugging. The EDBG is a USB composite
device with the following interfaces:
• Debugger (SWD)
• Virtual COM port (CDC)
• Data gateway interface (DGI)
Together with MPLAB X IDE the EDBG debugger interface can program and debug the microcontroller. On
the PIC32CM LE00/LS00/LS60 Curiosity Pro, the SWD interface is connected between the EDBG and the
microcontroller.
The virtual COM Port is connected to a UART on the microcontroller and provides a straight forward way to
communicate with the target application through terminal software. It offers variable baud rate, parity, and stop bit
settings. The settings on the microcontroller must match the settings given in the terminal software.
Note: The virtual COM port in the EDBG requires the terminal software to set the data terminal ready (DTR) signal
to enable the UART pins connected to the microcontroller. If the DTR signal is not enabled, the UART pins on the
EDBG is kept in High-Z (tristate), rendering the COM port unusable. The DTR signal is set automatically by some
terminal software, but it must be manually enabled in the terminal.
The DGI consists of several physical interfaces for communication with the Host computer. Communication over
the interfaces is bidirectional. It can be used to send events and values from the microcontroller or as a generic
printf-style data channel. Traffic over the interfaces can be time stamped on the EDBG for accurate tracing of events.
Timestamping imposes an overhead that reduces maximum throughput. The MPLAB Data Visualizer Extension,
installed with MPLAB X IDE, is used to send and receive data through the DGI.
The EDBG controls two LEDs on the PIC32CM LE00/LS00/LS60 Curiosity Pro: a power LED and a status LED. The
following table provides how the LEDs are controlled in different operation modes.
Table 3-1. EDBG LED Control
Operation Mode Power LED Status LED
Normal Operation Power LED is lit when power is applied
to the board.
Activity indicator, LED flashes when any
communication happens to the EDBG.
Bootloader Mode (idle) The power LED and the status LED blink simultaneously.
Bootloader Mode
(firmware upgrade)
The power LED and the status LED blink in an alternating pattern.
For additional information on EDBG, refer to the Microchip EDBG User Guide.
PIC32CM LE00/LS00/LS60
Curiosity Pro
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 8

3.2 Curiosity Pro Embedded Current Measurement Circuitry (XAM)
3.2.1 Overview
The Curiosity Pro Embedded Current Measurement Circuitry (XAM) extends the embedded debugger with high
dynamic range current measurement, and this enables the power profiling of the target system.
Figure 3-1. Curiosity Pro Embedded Current Measurement Circuitry (XAM)
The following are key features of the XAM:
• Calibration circuitry
• Voltage reference
• Analog front end
– Shunt resistors with a range selection switch
– Preamplifier
– Two active filters with gain
• Control MCU
– Analog-to-Digital Converter (ADC)
– Signal processing
– Control or communication interface to the EDBG
The current measurement front end is a high-side shunt measurement with a preamplifier, and a second active filter
stage with gain. The wide dynamic range is achieved by four measurement ranges which are defined by two shunts,
and the two parallel second stage active filters with gain.
3.2.2 EDBG Interface
The Curiosity Pro Embedded Current Measurement Circuitry (XAM) is connected to the EDBG with the following
interfaces:
• I2C: Used to control and configure the XAM.
• SPI: Current measurement data is streamed to the EDBG through this interface. This is a one-way data transfer
channel from the XAM to the EDBG.
• SWD: The MCU in the XAM is programmed through SWD from the EDBG.
• GPIO: At least one GPIO that is connected to the EDBG from the target MCU is also connected to the current
measurement unit to enable the user to sync current measurements with their application.
PIC32CM LE00/LS00/LS60
Curiosity Pro
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 9

• Clock sync: Synchronization signal to synchronize ADC measurements with EDBG.
3.2.3 Measurement Ranges and Accuracy
The XAM has the following four measurement ranges, which are defined by two shunt resistors and two gain stages
as provided in the table below:
Table 3-2. XAM Measurement Ranges and Accuracy
Measurement
Range Hardware Resolution Accuracy Comments
Range 1 Low-current shunt and high-
gain stage
20 nA 1 LSB ±1% Below 1 µA the error will increase.
Typical error for 300 nA is 1 LSB
±10%
Range 2 Low-current shunt and low-
gain stage
150 nA 1 LSB ±1% -
Range 3 High-current shunt and high-
gain stage
10 μA 1 LSB ±1% -
Range 4 High current shunt and low
gain stage
100 μA 1 LSB ±1% Above 100 mA the error will
increase to 1 LSB ±5% at 400 mA.
Maximum current is 400 mA
The ranges are switched automatically by the XAM to achieve best measurement results and the current active range
is visualized in the MPLAB Data Visualizer front end tool. The maximum voltage drops over the shunt resistor is 100
mV, and the XAM will switch the range automatically before this limit is reached.
PIC32CM LE00/LS00/LS60
Curiosity Pro
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 10

4. Hardware User Guide
4.1 Power Sources
The PIC32CM LE00/LS00/LS60 Curiosity Pro can be powered by several power sources:
• EDBG USB
• Target USB
• External power
The following table provides power input requirements.
Table 4-1. Power Sources for PIC32CM LE00/LS00/LS60 Curiosity Pro
Power Input Voltage Requirements Current Requirements Silkscreen Text
EDBG USB 4.4V to 5.25V (according to USB
specifications).
500 mA (according to USB
specifications).
DEBUG USB
Target USB 4.4V to 5.25V (according to USB
specifications).
500 mA (according to USB
specifications).
TARGET USB
External
Power
4.3V to 5.5V if a USB Host operation is
not required.
5V ±2% (±100 mV) for USB Host
operation.
In USB Host applications, a minimum
of 1A is recommended to supply the kit
and the USB device.
Recommended maximum is 2A.
POWER
Note: External power is required when 500 mA from a USB connector is not enough to power the board with
possible extension boards. The connected USB device in a USB Host application might exceed this limit.
The evaluation kit has the following on-board 3.3V voltage regulators:
• One for the Embedded Debugger (EDBG) and the Embedded Current Measurement Circuitry (XAM)
• One for the MCU and other on-board peripherals
Figure 4-1. Power Supply Block Diagram
EDBG & XAM
MCU
Regulator 3.3V
Power source
Power swit ch
Power converter
Power consumer
Peripherals
Power
Measurement
Select
External 5V
input
EDBG USB
Target USB
Regulator 3.3V
Jumper VCC_MCU_P3V3
J203
VCC_TARGET_P3V3
VCC_CM_P3V3
VCC_EBDG_P3V3
VCC_CM_IN_P3V3
VCC_P5V0
(P5V0)
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 11

4.2 Headers and Connectors
The following sections describe the implementation of different headers and connectors on the PIC32CM LE00/LS00/
LS60 Curiosity Pro and their connections to the PIC32CM LE00/LS00/LS60 microcontroller.
The tables in the following sections describe which signals are shared between the headers and on-board
functionality.
4.2.1 Curiosity Pro Power Header
The power header (POWER) can be used to connect external 5V power to the PIC32CM LE00/LS00/LS60 Curiosity
Pro evaluation kit.
The power header can also be used as a supply for external peripherals or extension boards. Care must be taken not
to exceed the total current limitation of the on-board regulator when using the 3.3V pin.
Table 4-2. Curiosity Pro Power Header (J202)
Pin Number Pin Name Function Pin Description
1 5V IN VCC_EXT_P5V0 External 5V input
2 GND GND Ground
3 5V IN VCC_EXT_P5V0 External 5V input
4 3V3 VCC_TARGET_P3V3 Regulated 3.3V (output, used as main power supply for the kit)
4.2.2 Extension Headers
All Curiosity Pro evaluation kits have several dual rows, 20-pin, 100 mil extension headers (with a pitch of 2.54 mm),
which can be used to connect to a variety of Xplained Pro extension boards, or to access the pins of the target.
The Curiosity Pro evaluation kits have male headers and the extension boards have their female counterparts. All
pins are not always connected, and the connected pins follow the defined pin-out descriptions given in the following
table.
Table 4-3. Extension Header
Pin Number Pin Name Pin Description
1 ID_EXTx Communication line to the ID chip on an extension board EXTx
2 GND Ground
3 ADC(+) Analog-to-Digital Converter (ADC) alternatively positive part of differential ADC
4 ADC(-) ADC alternatively negative part of differential ADC
5 GPIO General purpose I/O
6 GPIO General purpose I/O
7 PWM(+) Pulse-Width Modulator (PWM) alternatively positive part of differential PWM
8 PWM(-) PWM alternatively negative part of differential PWM
9 IRQ/GPIO Interrupt Request Line and general purpose I/O
10 SPI_SS_B/GPIO SPI Select and general purpose I/O
11 TWI_SDA Data line for I²C interface
12 TWI_SCL Clock line for I²C interface
13 UART_RX Receiver line of target device UART
14 UART_TX Transmitter line of target device UART
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 12

...........continued
Pin Number Pin Name Pin Description
15 SPI_SS_A SPI Select. Must preferably be unique.
16 SPI_MOSI Host out Client in line of serial peripheral interface
17 SPI_MISO Host in Client out line of serial peripheral interface
18 SPI_SCK Clock for SPI. Always implemented, bus type.
19 GND Ground
20 VCC Power for extension board
The PIC32CM LE00/LS00/LS60 extension headers, EXT1, EXT2 and EXT3, offer access to the I/O of the
microcontroller to expand the board by connecting extensions. These headers are based on the standard extension
header and are specified in the following tables.
Table 4-4. Extension Header EXT1 (J601)
EXT1 Pin MCU Pin Function Shared Functionality
1 [ID] - ID_EXT1 Communication line to the ID Chip on the
extension board
2 [GND] - GND Ground
3 [ADC(+)] PA02 ADC/AIN[0] mikroBUS
4 [ADC(-)] PA03 ADC/AIN[1] Arduino
5 [GPIO1] PA10 GPIO Arduino
6 [GPIO2] PA11 GPIO Arduino
7 [PWM(+)] PB08 TC0/WO[0] mikroBUS
8 [PWM(-)] PB09 TC0/WO[1] -
9 [IRQ/GPIO] PB07 EIC/EXTINT[7] - GPIO mikroBUS
10 [SPI_SS_B/GPIO] PB04 GPIO mikroBUS
11 [TWI_SDA] PB30 SERCOM5/PAD[0] I²C SDA EXT2, EXT3, mikroBUS, Arduino, EDBG DGI
12 [TWI_SCL] PB31 SERCOM5/PAD[1] I²C SCL EXT2, EXT3, mikroBUS, Arduino, EDBG DGI
13 [USART_RX] PA23 SERCOM2/PAD[1] UART RX mikroBUS
14 [USART_TX] PA22 SERCOM2/PAD[0] UART TX mikroBUS
15 [SPI_SS_A] PB00 SERCOM3/PAD[2] SS_A mikroBUS
16 [SPI_MOSI] PB02 SERCOM3/PAD[0] MOSI mikroBUS
17 [SPI_MISO] PB01 SERCOM3/PAD[3] MISO mikroBUS
18 [SPI_SCK] PB03 SERCOM3/PAD[1] SCK mikroBUS
19 [GND] - GND Ground
20 [VCC] - VCC_TARGET_P3V3 Power for extension Board
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 13

Table 4-5. Extension Header EXT2 (J602)
EXT2 Pin MCU Pin Function Shared Functionality
1 [ID] - ID_EXT2 Communication line to the ID Chip on the
extension board
2 [GND] - GND Ground
3 [ADC(+)] PA05 ADC/AIN[3] Arduino
4 [ADC(-)] PA06 ADC/AIN[4] -
5 [GPIO1] PB05 GPIO Arduino
6 [GPIO2] PB06 GPIO Arduino
7 [PWM(+)] PB16 TC2/WO[0] -
8 [PWM(-)] PB17 TC2/WO[1] -
9 [IRQ/GPIO] PB15 EIC/EXTINT[15] - GPIO -
10 [SPI_SS_B/GPIO] PC26 GPIO -
11 [TWI_SDA] PB30 SERCOM5/PAD[0] I²C SDA EXT1, EXT3, mikroBUS, Arduino, EDBG DGI
12 [TWI_SCL] PB31 SERCOM5/PAD[1] I²C SCL EXT1, EXT3, mikroBUS, Arduino, EDBG DGI
13 [USART_RX] PB21 SERCOM3/PAD[1] UART RX EDBG CDC
14 [USART_TX] PB20 SERCOM3/PAD[0] UART TX EDBG CDC
15 [SPI_SS_A] PC24 SERCOM4/PAD[2] SS_A EDBG DGI
16 [SPI_MOSI] PB24 SERCOM4/PAD[0] MOSI EDBG DGI
17 [SPI_MISO] PC25 SERCOM4/PAD[3] MISO EDBG DGI
18 [SPI_SCK] PB25 SERCOM4/PAD[1] SCK EDBG DGI
19 [GND] - GND Ground
20 [VCC] - VCC_TARGET_P3V3 Power for extension Board
Table 4-6. Extension Header EXT3 (J603)
EXT3 Pin MCU Pin Function Shared Functionality
1 [ID] - ID_EXT3 Communication line to the ID Chip on the
extension board
2 [GND] - GND Ground
3 [ADC(+)] PA08 ADC/AIN[6] Arduino
4 [ADC(-)] PA09 ADC/AIN[7] Arduino
5 [GPIO1] PC17 GPIO -
6 [GPIO2] PC18 GPIO -
7 [PWM(+)] PB18 TCC0/WO[0] -
8 [PWM(-)] PB19 TCC0/WO[1] -
9 [IRQ/GPIO] PB22 EIC/EXTINT[6] - GPIO -
10 [SPI_SS_B/GPIO] PA15 GPIO -
11 [TWI_SDA] PB30 SERCOM5/PAD[0] I²C SDA EXT1, EXT2, mikroBUS, Arduino, EDBG DGI
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 14

...........continued
EXT3 Pin MCU Pin Function Shared Functionality
12 [TWI_SCL] PB31 SERCOM5/PAD[1] I²C SCL EXT1, EXT2, mikroBUS, Arduino, EDBG DGI
13 [USART_RX] PA13 SERCOM4/PAD[1] UART RX -
14 [USART_TX] PA12 SERCOM4/PAD[0] UART TX -
15 [SPI_SS_A] PA18 SERCOM0/PAD[2] SS_A -
16 [SPI_MOSI] PA16 SERCOM0/PAD[0] MOSI -
17 [SPI_MISO] PA19 SERCOM0/PAD[3] MISO -
18 [SPI_SCK] PA17 SERCOM0/PAD[1] SCK -
19 [GND] - GND Ground
20 [VCC] - VCC_TARGET_P3V3 Power for extension Board
4.2.3 mikroBUS Header Connector
The mikroBUS socket is comprised of a pair of 1×8 female headers with a proprietary pin configuration and silkscreen
markings.
The pinout (always laid out in the same order) consists of three groups of communication pins (SPI, UART and I2C),
five additional pins (PWM, interrupt, analog input, reset and chip select), and two power groups (+3.3V and 5V).
The following table provides the mikroBUS header details.
Table 4-7. mikroBUS Header Connector (J605/J606)
mikroBUS Pin MCU Pin Function Shared Functionality
[AN] PA02 ADC/AIN[0] EXT1
[RST] PB04 GPIO EXT1
[CS] PB00 SERCOM3/PAD[2] CS EXT1
[SCK] PB03 SERCOM3/PAD[1] SCK EXT1
[MISO] PB01 SERCOM3/PAD[3] MISO EXT1
[MOSI] PB02 SERCOM3/PAD[0] MOSI EXT1
[+3.3V] - VCC_TARGET_P3V3 -
[GND] - GND -
[PWM] PB08 TC0/WO[0] EXT1
[INT] PB07 EIC/EXTINT[7] EXT1
[RX] PA23 SERCOM2/PAD[1] UART RX EXT1
[TX] PA22 SERCOM2/PAD[0] UART TX EXT1
[SCL] PB31 SERCOM5/PAD[1] I²C SCL EXT1, EXT2, EXT3, Arduino, EDBG DGI
[SDA] PB30 SERCOM5/PAD[0] I²C SDA EXT1, EXT2, EXT3, Arduino, EDBG DGI
[+5V] - VCC_P5V0 -
[GND] - GND Ground
4.2.4 Arduino Uno Header Connectors
The PIC32CM LE00/LS00/LS60 Curiosity Pro implements Arduino shield header connectors based on the Arduino
Uno. All references to the Arduino pin names are considered from the official Arduino schematics of the Arduino Uno.
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 15

Tip: All pins do not have the same functionality on the Arduino Uno as on the shield connectors. Each
shield must be checked for compatibility before it is connected.
Table 4-8. Power (J500)
J500 Pin MCU Pin Function Shared Functionality
1 [RFU] - N/C -
2 [IOREF] - VCC_TARGET_P3V3 -
3 [RESET] /RESET TARGET_RESETN EDBG SWD, Cortex Debug, PICkit 4 Interface, RESET button
4 [3.3V] - VCC_TARGET_P3V3 -
5 [5V] - VCC_P5V0 -
6 [GND] - GND -
7 [GND] - GND -
8 [VIN] - N/C -
Table 4-9. Analog (J501)
J501 Pin
(SHIELD_ANA) MCU Pin Function Shared Functionality
1 [A0] PC00 ADC/AIN[20] -
2 [A1] PC01 ADC/AIN[21] -
3 [A2] PC02 ADC/AIN[22] -
4 [A3] PC03 ADC/AIN[23] -
5 [A4] PB05 ADC/AIN[13] EXT2
6 [A5] PB06 ADC/AIN[14] EXT2
Table 4-10. Digital Low (J504)
J504 Pin
(SHIELD_DIG) MCU Pin Function Shared Functionality
1 [RX/D0] PA05 SERCOM0/PAD[1] UART RX EXT2
2 [TX/D1] PA04 SERCOM0/PAD[0] UART TX -
3 [D2] PC05 GPIO -
4 [PWM/D3] PC06 GPIO -
5 [D4] PC07 GPIO -
6 [PWM/D5] PC08 GPIO -
7 [PWM/D6] PC09 GPIO -
8 [D7] PC10 GPIO -
PIC32CM LE00/LS00/LS60
Hardware User Guide
© 2022 Microchip Technology Inc.
and its subsidiaries
User Guide DS70005443E-page 16

Table 4-11. Digital High (J503)
J503 Pin
(SHIELD_DIG) MCU Pin Function Shared Functionality
1 [D8] PC11 GPIO -
2 [PWM/D9] PC12 GPIO -
3 [PWM/D10] PA10 GPIO EXT1
4 [PWM/D11] PA08 SERCOM2/PAD[0] SPI MOSI EXT3
5 [D12] PA11 SERCOM2/PAD[3] SPI MISO EXT1
6 [D13] PA09 SERCOM2/PAD[1] SPI SCK EXT3
7 [GND] - GND -
8 [AREF] PA03 ADC / DAC VREFA EXT1
9 [SDA/D14] PB30 SERCOM5 PAD[0] I²C SDA EXT1, EXT2, EXT3, mikroBUS, EDBG DGI
10 [SCL/D15] PB31 SERCOM5 PAD[1] I²C SCL EXT1, EXT2, EXT3, mikroBUS, EDBG DGI
Table 4-12. SPI (J502)
J502 Pin
(SHIELD_DIG) MCU Pin Function Shared Functionality
1 [MISO] PA11 SERCOM2/PAD[3] SPI MISO EXT1
2 [5V] - VCC_P5V0 -
3 [SCK] PA09 SERCOM2/PAD[1] SPI SCK EXT3
4 [MOSI] PA08 SERCOM2/PAD[0] SPI MOSI EXT3
5 [RESET] /RESET TARGET_RESETN EDBG SWD, Cortex Debug, PICkit 4 Interface, RESET
button
6 [GND] - GND -
4.2.5 MCU Current Measurement Header
An angled 1x2, 100 mil pin-header marked with CURRENT MEASUREMENT is located at the upper edge of the
Curiosity Pro. All power to the PIC32CM LE00/LS00/LS60 is routed through this header. To measure the power
consumption of the device, remove the jumper and replace it with an ammeter.
Table 4-13. MCU Current Measurement (J203)
Current Measurement Header Pin Function
1 -
2 VCC_MCU_P3V3
CAUTION
Removing the jumper from the pin-header while the kit is powered may cause the PIC32CM LE00/LS00/
LS60 to be powered through its I/O pins. This may cause permanent damage to the device.
PIC32CM LE00/LS00/LS60
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4.2.6 USB
The PIC32CM LE00/LS00/LS60 Curiosity Pro has a USB Micro-AB connector to use with the PIC32CM LE00/LS00/
LS60 USB module, labeled TARGET USB on the kit.
In Device mode, for USB self-powered devices, a GPIO (VBUS_DET) is used to detect the VBUS voltage.
The USB ID signal is connected to another GPIO (USB_ID_DET) and can be used to check if a Host cable is
connected.
In Host mode, the VBUS voltage is enabled by setting a GPIO (VBUS_HOST_EN) to low.
Table 4-14. Target USB Connections (J200)
MCU Pin Function Shared Functionality
PA24 USB/DM -
PA25 USB/DP -
PA21 GPIO (VBUS_DET) -
PA20 GPIO (USB_ID_DET) -
PC21 GPIO (VBUS_HOSTEN) -
4.2.7 Cortex Debug Header
The Curiosity Pro has a 10-pin, 50-mil Cortex Debug header that can be used to attach external debug probes to the
PIC32CM LE00/LS00/LS60.
Table 4-15. Cortex Debug Header (J400)
Cortex Debug Header Pin MCU Pin Function Shared Functionality
1 [VCC] - VCC_TARGET_P3V3 -
2 [SWDIO/TMS] PA31/SWDIO SWDIO EDBG SWD, PICkit 4 Interface
3 [GND] - GND -
4 [SWCLK/TCK] PA30/SWCLK SWCLK EDBG SWD, PICkit 4 Interface
5 [GND] - GND -
6 [SWO/TDO] N/C - -
7 [KEY] N/C - -
8 [NC/TDI] N/C - -
9 [GNDDetect] GND GND -
10 [nRESET] /RESET TARGET_RESETN EDBG SWD, PICkit 4 Interface, Arduino,
RESET button
4.2.8 PICkit 4 Interface Header
The Curiosity Pro has an 8-pin SIL header that can be used to attach PICkit™ 4 debug probes to the PIC32CM
LE00/LS00/LS60.
Table 4-16. PICkit 4 Interface Header (J402)
PICkit 4 Interface Header Pin MCU Pin Function Shared Functionality
1 [/MCLR] /RESET TARGET_RESETN EDBG SWD, Cortex Debug, Arduino,
RESET button
2 [VTG] - VCC_TARGET_P3V3 -
PIC32CM LE00/LS00/LS60
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© 2022 Microchip Technology Inc.
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User Guide DS70005443E-page 18

...........continued
PICkit 4 Interface Header Pin MCU Pin Function Shared Functionality
3 [GND] - GND -
4 [SWO] N/C - -
5 [SWCLK] PA30/SWCLK SWCLK EDBG SWD, Cortex Debug
6 [N/C] N/C - -
7 [N/C] N/C - -
8 [SWDIO] PA31/SWDIO SWDIO EDBG SWD, Cortex Debug
PIC32CM LE00/LS00/LS60
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and its subsidiaries
User Guide DS70005443E-page 19

4.3 Peripherals
4.3.1 Oscillators
The Curiosity Pro evaluation kit contains two oscillators, a 32.768 kHz and a 12 MHz, which can be used as clock
sources to the PIC32CM LE00/LS00/LS60 devices.
Table 4-17. External 32.768 kHz Oscillator Connection
Silkscreen Text MCU Pin Function Shared Functionality
32.768 kHz OSC PA00/XIN32 XIN32 -
Table 4-18. External 12 MHz Oscillator Connection
Silkscreen Text MCU Pin Function Shared Functionality
12 MHz OSC PA14/XIN XIN -
Note: The external 12 MHz Oscillator, which feeds the XIN pin, is permanently powered. The oscillator current
consumption must be considered, especially when measuring the current consumption of the MCU in Standby and
Off modes. Users can disconnect the oscillator to remove this extra current consumption.
4.3.2 Mechanical Buttons
The Curiosity Pro board contains three mechanical buttons: one Reset button connected to the PIC32CM LE00/
LS00/LS60 reset line, and two generic user configurable buttons. When a button is pressed, it will drive the I/O line to
GND. The mechanic button details are provided in the table below.
Tip: The pull-up resistor is not connected to the generic user-configurable buttons. Ensure to enable their
internal pull-up in the PIC32CM LE00/LS00/LS60 device to use these buttons.
Table 4-19. Mechanical Buttons Connection
Silkscreen Text MCU Pin Function Shared Functionality
RESET /RESET TARGET_RESETN EDBG SWD, Cortex Debug, PICkit 4 Interface, Arduino
SW0 PC20 GPIO -
SW1 PC28 GPIO -
4.3.3 LEDs
One green LED and one red LED are available on the Curiosity Pro evaluation board, and these LEDs can be turned
on and off. The LEDs can be activated by driving the connected I/O line to GND.
Table 4-20. LEDs Connection
Silkscreen Text MCU Pin Function Shared Functionality
LED0 (Green) PC19 GPIO -
LED1 (Red) PC27 GPIO -
PIC32CM LE00/LS00/LS60
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User Guide DS70005443E-page 20