Figure 4-2. SAMB11ZR XAM Implementation Block Diagram
On the SAM B11ZR Xplained Pro the XAM can be used in four configurations:
1.
No current measurement or external MCU current measurement
: The XAM is bypassed and
thus the MCU and peripherals are supplied directly by the regulator. Set both jumpers in the
"BYPASS" position. In this configuration it is also possible to connect external measurement tools
on the Xplained Pro MCU power measurement header to measure MCU current directly instead of
using the XAM.
2.
MCU current measurement
: The XAM measures only the MCU current while the peripherals are
supplied directly by the regulator. For this configuration, place the jumper for "I/O" (peripherals) into
the "BYPASS" position and the for "MCU" into the "MEASURE" position.
3.
Peripherals measurement
: The XAM measures only the peripherals current while the MCU is
directly supplied by the regulator. For this configuration, place the jumper for "MCU" into the
"BYPASS" position and the "I/O" jumper into the "MEASURE" position.
4.
MCU and peripherals measurement
: In this configuration both MCU and peripherals are
measured by the XAM. Place both jumpers on "I/O" and "MCU" headers in the "MEASURE"
position.
ATSAMB11ZR
©
2017 Microchip Technology Inc.
User Guide
DS70005334A-page 19
