ATXMEGA384C3_14 Datasheet, PDF (52/125 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA C3 Microcontroller

31.1.5 Communication Functions
SCL
SDA
SCLIN
SCLOUT
SDAIN
SDAOUT
XCKn
RXDn
TXDn
SS
MOSI
MISO
SCK
D-
D+
Serial Clock for TWI
Serial Data for TWI
Serial Clock In for TWI when external driver interface is enabled
Serial Clock Out for TWI when external driver interface is enabled
Serial Data In for TWI when external driver interface is enabled
Serial Data Out for TWI when external driver interface is enabled
Transfer Clock for USART n
Receiver Data for USART n
Transmitter Data for USART n
Slave Select for SPI
Master Out Slave In for SPI
Master In Slave Out for SPI
Serial Clock for SPI
Data- for USB
Data+ for USB
31.1.6 Oscillators, Clock, and Event
TOSCn
XTALn
CLKOUT
EVOUT
RTCOUT
Timer Oscillator pin n
Input/Output for Oscillator pin n
Peripheral Clock Output
Event Channel Output
RTC Clock Source Output
31.1.7 Debug/System Functions
RESET
PDI_CLK
PDI_DATA
Reset pin
Program and Debug Interface Clock pin
Program and Debug Interface Data pin
XMEGA C3 [DATASHEET]
52
Atmel-8361F-AVR-ATxmega384C3-Datasheet–11/2014