Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Data Sheet
Product codes
ATSAMD20-XPRO
14
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
6.
Signal Descriptions List
The following table gives details on signal names classified by peripheral.
Signal Name
Function
Type
Active Level
Analog Comparators - AC
AIN[3:0]
AC Analog Inputs
Analog
CMP[1:0]
AC Comparator Outputs
Digital
Analog Digital Converter - ADC
AIN[19:0]
ADC Analog Inputs
Analog
VREFP
ADC Voltage External Reference
Analog
Digital Analog Converter - DAC
VOUT
DAC Voltage output
Analog
VREFP
DAC Voltage External Reference
Analog
External Interrupt Controller
EXTINT[15:0]
External Interrupts
Input
NMI
External Non-Maskable Interrupt
Input
Generic Clock Generator - GCLK
GCLK_IO[7:0]
Generic Clock (source clock or generic clock generator output)
I/O
Power Manager - PM
RESET
Reset
Input
Low
Serial Communication Interface - SERCOMx
PAD[3:0]
SERCOM I/O Pads
I/O
System Control - SYSCTRL
XIN
Crystal Input
Analog/ Digital
XIN32
32kHz Crystal Input
Analog/ Digital
XOUT
Crystal Output
Analog
XOUT32
32kHz Crystal Output
Analog
Timer Counter - TCx
WO[1:0]
Waveform Outputs
Output
Peripheral Touch Controller - PTC
X[15:0]
PTC Input
Analog
Y[15:0]
PTC Input
Analog
General Purpose I/O - PORT
PA25 - PA00
Parallel I/O Controller I/O Port A
I/O