5 Signal Descriptions List

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

Table 5-1. Signal Descriptions List
Signal Name Function Type Active Level
Device Service Unit - DSU
SWCLK SW Clock Digital
SWDIO SW Bidirectional Data Digital
RESETN Reset input Digital Low
Trace Port Interface Unit - TPIU
TRACEDATA[3:0] Trace Data Output Digital
TRACECLK Trace Clock Digital
SWO Serial Wire Output Digital
Analog Comparators - AC
CMP[1:0] AC Comparator Outputs Digital
AIN[3:0] AC Analog Inputs Analog
Analog Digital Converter - ADC
AIN[15:0] ADC Analog Inputs Analog
VREFA ADC Voltage External Reference A Analog
VREFB ADC Voltage External Reference B Analog
VREFC ADC Voltage External Reference C Analog
Peripheral Touch Controller - PTC
XY[31:0] PTC X/Y Input/Output Analog
Digital Analog Converter - DAC
VOUT[1:0] DAC Voltage output Analog
VREFA DAC Voltage External Reference 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
Supply Controller - SUPC
VBAT External battery supply Inputs Analog
OUT[1:0] Logic Outputs Digital
Power Manager - PM
RESETN Reset input Digital Low
Oscillators Control - OSCCTRL
XOSCx - XIN Crystal or external clock Input Analog/Digital
XOSCx - XOUT Crystal Output Analog
32KHz Oscillators Control - OSC32KCTRL
XIN32 32KHz Crystal or external clock Input Analog/Digital
XOUT32 32KHz Crystal Output Analog
General Purpose I/O - PORT
PA31 - PA30, PA27, PA25 - PA00 Parallel I/O Controller I/O Port A Digital
PB31 - PB00 Parallel I/O Controller I/O Port B Digital
PC31 - PC30, PC28 - PC10, PC07 - PC00 Parallel I/O Controller I/O Port C Digital
PD21-PD20, PD12 - PD08, PD01 - PD00 Parallel I/O Controller I/O Port D Digital
Real-Time Counter - RTC
IN[4:0] Tamper / Wake / Active Layer Protection Input Digital
OUT Active Layer Protection Output Digital
Timer Counter - TCx
WO[1:0] Waveform Outputs/Capture Inputs Digital
Timer Counter - TCCx
WO[7:0] Waveform Outputs/Capture Inputs Digital
Position Decoder - PDEC
PDEC[2:0] PDEC Inputs Digital
Parallel Capture Controller - PCC
DEN1 Sensor Sync1 Digital
DEN2 Sensor Sync2 Digital
CLK Sensor Clock Digital
DATA[13:0] Sensor Data Digital
Serial Communication Interface - SERCOMx
PAD[3:0] SERCOM Inputs/Outputs Pads Digital
Quad Serial Peripheral Interface - QSPI
SCK Serial Clock Digital
CS Chip Select Digital
DATA[3:0] Data Input/Output Digital
Ethernet MAC - GMAC
GTXEN Transmit Enable Digital
GTXCK Transmit Clock or Reference Clock Digital
GTX[3:0] Transmit Data Digital
GTXER Transmit Coding Error Digital
GRXER Receive Error Digital
GRXCK Receive Clock Digital
GRX[3:0] Receive Data Digital
GRXDV Receive Data Valid Digital
GCOL Collision Detect Digital
GCRS Carrier Sense and Data Valid Digital
GMDIO Management Data Input/Output Digital
GMDC Management Data Clock Digital
Universal Serial Bus - USB
DP DP for USB Digital
DM DM for USB Digital
SOF 1kHz USB Start of Frame Digital
Control Area Network - CANx
TX CAN Transmit Digital
RX CAN Receive Digital
Inter-IC Sound Controller - I2S
MCK1, MCK0 Host Clock Digital
SCK1, SCK0 Serial Clock Digital
FS1, FS0 I²S Word Select or TDM Frame Sync Digital
SDO Serial Data Output for Transmit Serializer Digital
SDI Serial Data Input for Receive Serializer Digital
SD/MMC Host Controller - SDHCx
CD SD Card / SDIO / e.MMC Card Detect Digital
CMD SD Card / SDIO / e.MMC Command/Response Line Digital
WP SD Card Connector Write Protect Signal Digital
CK SD Card / SDIO / e.MMC Clock Signal Digital
DAT[3:0] SD Card / SDIO / e.MMC Data Lines Digital