Signal Descriptions List

The following table gives details on signal names classified by peripheral.

Table 1. Signal Descriptions List
Signal Name Function Type Active Level
Analog Comparators - AC      
AIN[7:0] AC Analog Inputs Analog  
CMP[2:0] AC Comparator Outputs Digital  
Analog Digital Converter - ADCx      
AIN[11:0] ADC Analog Inputs Analog  
VREFA ADC Voltage External Reference A Analog  
External Interrupt Controller - EIC      
EXTINT[15:0] External Interrupts inputs Digital  
NMI External Non-Maskable Interrupt input Digital  
Generic Clock Generator - GCLK      
GCLK_IO[7:0] Generic Clock (source clock inputs or generic clock generator output) Digital  
Custom Control Logic - CCL      
IN[11:0] Logic Inputs Digital  
OUT[3:0] Logic Outputs Digital  
Power Manager - PM      
RESETN Reset input Digital Low
Serial Communication Interface - SERCOMx      
PAD[3:0] SERCOM Inputs/Outputs Pads Digital  
Oscillators Control - OSCCTRL      
XIN Crystal or external clock Input Analog/Digital  
XOUT Crystal Output Analog  
32KHz Oscillators Control - OSC32KCTRL      
XIN32 32KHz Crystal or external clock Input Analog/Digital  
XOUT32 32KHz Crystal Output Analog  
Timer Counter - TCx      
WO[1:0] Waveform Outputs Digital  
Timer Counter - TCCx      
WO[1:0] Waveform Outputs Digital  
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 Digital  
PA28 - PA27 Parallel I/O Controller I/O Port A Digital  
PA31 - PA30 Parallel I/O Controller I/O Port A Digital  
PB17 - PB00 Parallel I/O Controller I/O Port B Digital  
PB23 - PB22 Parallel I/O Controller I/O Port B Digital  
PB31 - PB30 Parallel I/O Controller I/O Port B Digital