AT32UC3A3256S_10 Datasheet, PDF (21/90 Pages) ATMEL Corporation – 32-bit AVR®Microcontroller

AT32UC3A3/A4
Table 4-8. Signal Description List
Signal Name
Function
Type
Active
Level Comments
B0
Channel 0 Line B
I/O
B1
Channel 1 Line B
I/O
B2
Channel 2 Line B
I/O
CLK0
Channel 0 External Clock Input
Input
CLK1
Channel 1 External Clock Input
Input
CLK2
Channel 2 External Clock Input
Input
Two-wire Interface - TWI0, TWI1
TWCK
Serial Clock
I/O
TWD
Serial Data
I/O
TWALM
SMBALERT signal
I/O
Universal Synchronous Asynchronous Receiver Transmitter - USART0, USART1, USART2, USART3
CLK
Clock
I/O
CTS
Clear To Send
Input
DCD
Data Carrier Detect
Only USART1
DSR
Data Set Ready
Only USART1
DTR
Data Terminal Ready
Only USART1
RI
Ring Indicator
Only USART1
RTS
Request To Send
Output
RXD
Receive Data
Input
TXD
Transmit Data
Output
Analog to Digital Converter - ADC
AD0 - AD7
Analog input pins
Analog
input
Audio Bitstream DAC (ABDAC)
DATA0-DATA1
D/A Data out
Output
DATAN0-DATAN1
D/A Data inverted out
Output
Universal Serial Bus Device - USB
DMFS
USB Full Speed Data -
Analog
DPFS
USB Full Speed Data +
Analog
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32072C–AVR32–2010/03