5 Signal Descriptions List

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

Table 5-1. Signal Descriptions List
Signal NameFunctionTypeActive Level
Analog Comparators - AC
AIN[3:0]AC Analog InputsAnalog
CMP[1:0]AC Analog OutputAnalog
Analog Digital Converter - ADC
AIN[19:0]ADC Analog InputsAnalog
VREFAADC Voltage External Reference AAnalog
VREFBADC Voltage External Reference B Analog
External Interrupt Controller - EIC
EXTINT[15:0]External Interrupts inputsDigital
NMIExternal Non-Maskable Interrupt inputDigital
Generic Clock Generator - GCLK
GCLK_IO[4:0]Generic Clock (source clock inputs or generic clock generator output)Digital
Custom Control Logic - CCL
IN[11:0]Logic InputsDigital
OUT[3:0]Logic OutputsDigital
Supply Controller - SUPC
VBATExternal battery supply InputsAnalog
PSOKMain Power Supply OK inputDigital
OUT[1:0]Logic OutputsDigital
Power Manager - PM
RESETNReset inputDigitalLow
Serial Communication Interface - SERCOMx
PAD[3:0]SERCOM Inputs/Outputs PadsDigital
Oscillators Control - OSCCTRL
XINCrystal or external clock InputAnalog/Digital
XOUTCrystal OutputAnalog
32KHz Oscillators Control - OSC32KCTRL
XIN3232KHz Crystal or external clock InputAnalog/Digital
XOUT3232KHz Crystal OutputAnalog
Timer Counter - TCx
WO[1:0]Waveform/PWM outputs or Capture InputsDigital
Timer Counter - TCCx
WO[7:0]Waveform/PWM outputs or Capture InputsDigital
Peripheral Touch Controller - PTC
X[7:0]PTC Input/OutputAnalog
Y[23:0]PTC Input/OutputAnalog
X[31:24]PTC OutputAnalog
General Purpose I/O - PORT
PA25 - PA00Parallel I/O Controller I/O Port ADigital
PA27Parallel I/O Controller I/O Port ADigital
PA31 - PA30Parallel I/O Controller I/O Port ADigital
PB09 - PB00Parallel I/O Controller I/O Port BDigital
PB25 - PB11Parallel I/O Controller I/O Port BDigital
PB31 - PB30Parallel I/O Controller I/O Port BDigital
PC03 - PC00Parallel I/O Controller I/O Port CDigital
PC07 - PC05Parallel I/O Controller I/O Port CDigital
PC17 - PC12Parallel I/O Controller I/O Port CDigital
PC28 - PC24Parallel I/O Controller I/O Port CDigital
General Purpose input - PORT
PC11 - PC08Parallel I/O Controller input Port CDigital
PC21 - PC18Parallel I/O Controller input Port CDigital
Segment LCD
SLCD51 - SLCD00Segment LCDAnalog
VLCDBias VoltageAnalog
Universal Serial Bus - USB
DPDP for USBDigital
DMDM for USBDigital
SOF 1kHzUSB Start of FrameDigital
Real Timer Clock - RTC
RTC_IN[4:0]Tamper or external wake-up pinsDigital
RTC_OUTTamper outputDigital