4.5
Embedded Current Measurement Circuitry (XAM) Configuration
On the PIC32CM LE00/LS00/LS60 Curiosity Pro, the MCU and the on-board peripherals or components are powered
by their own regulator as shown in the following figure.
All other parts of the board, specifically the embedded debugger and accompanying Curiosity Pro Embedded Current
Measurement Circuitry (XAM), are powered from a separate regulator.
Figure 4-2. XAM Configuration
XAM
MCU/On-board
Peripherals
Regulator
On-board
Peripherals
MCU
Jumper
J203
Jumper
J205
Jumper
J204
The current to the MCU and the on-board peripherals or components can be separately measured by connecting
them to the XAM circuit through their dedicated jumper.
Table 4-28. XAM On-Board Peripherals/Components Current Measurement (J204)
Jumper Setting
Function
1-2
XAM is bypassed for the On-board Peripherals/Components
2-3
XAM is measuring the On-board Peripherals/Components current consumption
Table 4-29. XAM MCU Current Measurement (J205)
Jumper Setting
Function
1-2
XAM is bypassed for the MCU
2-3
XAM is measuring the MCU current consumption
On the Curiosity Pro, the XAM can be used in the following four configurations:
• No current measurement or external MCU current measurement: The XAM is bypassed, and the MCU and
the on-board Peripherals/Components are supplied by the regulator. Set both the jumpers in the BYPASS
position. In this configuration, users can connect external measurement tools on the Curiosity Pro MCU power
measurement header to measure MCU current directly instead of using the XAM.
• MCU current measurement: The XAM measures only the MCU current while the on-board Peripherals/
Components are supplied by the regulator. For this configuration, place the jumper for the on-board Peripherals/
Components into the BYPASS position and the MCU into the MEASURE position.
• Peripherals measurement: The XAM measures only the current of the on-board Peripherals/Components while
the MCU is supplied by the regulator. For this configuration place the jumper for MCU into the BYPASS position
and the on-board Peripherals/Components jumper into the MEASURE position.
• MCU and peripherals measurement: In this configuration both the MCU and the on-board Peripherals/
Components are measured by the XAM. Place both the jumpers on the on-board Peripherals/Components
and MCU headers in the MEASURE position.
PIC32CM LE00/LS00/LS60
Hardware User Guide
©
2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS70005443E-page 24
