Microchip Technology SAMC21N Xplained Pro, Руководство пользователя

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Table 4-10. VREF Header
VREF header pin Pin / Net Function
1 VCC_AREF_P3V3_P5V0 Filtered kit target voltage
2 VCC_AREF_P3V3_P5V0 Filtered kit target voltage
3 PA04 SDADC voltage reference
4 PA03 ADC / DAC voltage reference
5 GND Ground
6 GND Ground
4.2.5 DAC Header
SAMC21N Xplained Pro has a 2-pin header labeled DAC-OUT on the board that is connected to the DAC
output of the ATSAMC21N18A and ground.
Table 4-11. DAC Header
DAC header pin Pin / Net Function Shared functionality
1 PA02 DAC VOUT
2 GND Ground
4.2.6 Current Measurement Header
An angled 1x2, 100mil pin-header marked with MCU current measurement is located at the upper edge of
the SAMC21N Xplained Pro. All power to the ATSAMC21N18A is exclusively routed through this header
(excluding power to headers and peripherals). To measure the power consumption of the device, remove
the jumper and replace it with an ammeter.
Caution: Removing the jumper from the pin-header while the kit is powered may cause the
ATSAMC21N18A to be powered through its I/O pins. This may cause permanent damage to the
device.
4.2.7 Cortex Debug Connector
SAMC21N Xplained Pro has a 10-pin 50-mil Cortex
®
Debug Connector that can be used to attach
external debuggers to the ATSAMC21N18A.
Table 4-12. Cortex Debug Connector
Cortex Debug Connector pin Pin / Net Function
1 VCC_TARGET_P3V3_P5V0 ATSAMC21N18A voltage
2 SWDIO SWD data signal
3 GND Ground
4 SWCLK SWD clock signal
5 GND Ground
6 - -
SAMC21N Xplained Pro
©
2017 Microchip Technology Inc.
User Guide
DS70005318A-page 19