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
Hardware User Guide
©
2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS70005443E-page 20
