AT32UC3A3128 查看數據表（PDF） - Atmel Corporation

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AT32UC3A3128

32-bit AVR® Microcontroller

Atmel Corporation 

AT32UC3A3/A4

Table 3-1. Signal Description List

Signal Name

Function

Type

Active

Level Comments

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

SCL

Serial Clock

I/O

SDA

Serial Data

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

RXDN

Inverted Receive Data

Input

Low

TXD

Transmit Data

Output

TXDN

Inverted Transmit Data

Output

Low

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

FSDM

USB Full Speed Data -

Analog

FSDP

USB Full Speed Data +

Analog

HSDM

USB High Speed Data -

Analog

9

32072C–AVR32–2010/03

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