Xplained Pro Analog Module - Microchip Technology SAM B11ZR Xplained Pro User Manual

Table 3-1. EDBG LED Control
Mode
Normal mode
Bootloader mode (idle)
Bootloader mode (firmware
upgrade)
For additional information on the EDBG, see the
3.3

Xplained Pro Analog Module

3.3.1 Overview
The Xplained Pro Analog Module (XAM) extends the embedded debugger with high dynamic range
current measurement. This enables power profiling of the target system.
Figure 3-1. XAM Block Diagram
Calibration ON/OFF
The XAM consists of:
• Calibration circuitry
• Voltage reference circuitry
• Analog front-end:
– Shunt resistors with a range selection switch
– Pre-amplifier
– Two active filters with gain
• Control MCU
©
2017 Microchip Technology Inc.
The power LED is ON when
power is applied to the board.
The power LED and the status LED blink simultaneously.
The power LED and the status LED blink in an alternating pattern.
Calibration GPIO(s)
circuitry
voltage
reference
2.7V
Pre-amplifier
2x
20x
20x
16x
Active filter with
gain
Xplained Pro Analog Module (XAM)
Power LED
EDBG User Guide.
Control MCU
GPIO
AREF
ADC0
ADC1
S&H
ADC
GND
GPIO
User Guide
ATSAMB11ZR
Status LED
Activity indicator, the LED flashes
when any communication
happens to the EDBG.
Sync GPIO
I2C
EDBG
SPI
Clock sync
SWD
DS70005334A-page 7