ATXMEGA128B1 Datasheet, PDF (53/138 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA B1 Microcontroller

32.1.5 Timer/Counter and AWEX functions
OCnxLS
OCnxHS
Output Compare Channel x Low Side for Timer/Counter n
Output Compare Channel x High Side for Timer/Counter n
32.1.6 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
32.1.7 Oscillators, Clock and Event
TOSCn
XTALn
CLKOUT
EVOUT
RTCOUT
Timer Oscillator pin n
Input/Output for Oscillator pin n
Peripheral Clock Output
Event Channel 0 Output
RTC Clock Source Output
XMEGA B1 [DATASHEET] 53
8330C–AVR–07/2012