5 Signal Descriptions List
The following table provides details on signal names classified by peripherals.
Signal Name | Function | Type |
---|---|---|
Generic Clock Generator - GCLK | ||
GCLK_IO[4:0] | Generators Clock Source (Input) or Generic Clock Signal (Output) | Digital I/O |
Oscillators Control - OSCCTRL | ||
XIN | Crystal Oscillator or External Clock Input | Analog Input (Crystal Oscillator)/Digital Input (External Clock) |
XOUT | Crystal Oscillator Output | Analog Output |
32 kHz Oscillators Control - OSC32KCTRL | ||
XIN32 | 32.768 kHz Crystal Oscillator or External Clock Input | Analog Input (Crystal Oscillator)/Digital Input (External Clock) |
XOUT32 | 32.768 kHz Crystal Oscillator Output | Analog Output |
Serial Communication Interface - SERCOMx | ||
PAD[3:0] | General SERCOM Pins | Digital I/O |
Timer Counter - TCx | ||
WO[1:0] | Capture Inputs or Waveform Outputs | Digital I/O |
Real Timer Clock - RTC | ||
IN[3:0] | Tamper Detection Inputs | Digital Input |
OUT[3:0] | Tamper Detection Outputs | Digital Output |
Analog Comparators - AC | ||
AIN[3:0] | AC Comparator Inputs | Analog Input |
CMP[1:0] | AC Comparator Outputs | Digital Output |
Analog Digital Converter - ADC | ||
AIN[9:0] | ADC Input Channels | Analog Input |
VREFA(1) | ADC External Reference Voltage A | Analog Input |
VREFB | ADC External Reference Voltage B | Analog Input |
Digital Analog Converter - DAC | ||
VOUT | DAC Voltage Output | Analog Output |
VREFA(1) | DAC External Reference Voltage A | Analog Input |
Operational Amplifier - OPAMP | ||
OA[2:0]NEG | OPAMP Negative Inputs | Analog Input |
OA[2:0]POS | OPAMP Positive Inputs | Analog Input |
OA0OUT / OA2OUT | OPAMP Outputs | Analog Output |
Peripheral Touch Controller - PTC | ||
XY[19:0] | X-lines and Y-lines | Digital Output (X-line) /Analog I/O (Y-line) |
Custom Control Logic - CCL | ||
IN[5:0] | Inputs to lookup table | Digital Input |
OUT[1:0] | Outputs from lookup table | Digital Output |
External Interrupt Controller - EIC | ||
EXTINT[7:0] | External Interrupts Pins | Digital Input |
NMI | Non-Maskable Interrupt Pin | Digital Input |
General Purpose I/O - PORT | ||
PA11-PA00 / PA19-PA14 / PA25-PA22 / PA27 / PA31-PA30 | General Purpose I/O Pin in Port A | Digital I/O |
Reset Controller - RSTC | ||
RESET | External Reset Pin (Active Level: LOW) | Digital Input |
Debug Service Unit - DSU | ||
SWCLK | Serial Wire Clock | Digital Input |
SWDIO | Serial Wire Bidirectional Data Pin | Digital I/O |
- VREFA is shared between the ADC and DAC peripherals.