Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Ficha De Dados

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Atmel | SMART SAM D20 [DATASHEET]

Atmel-42129K–SAM-D20_datasheet–06/2014

The serial communication interface (SERCOM) can be configured to support a number of modes; I

2

C, SPI and USART. 

Once configured and enabled, all SERCOM resources are dedicated to the selected mode.

The SERCOM serial engine consists of

 

a transmitter and receiver, baud-rate generator and address matching 

functionality. It can be configured to use the internal generic clock or an external clock, making operation in all sleep 
modes possible.

z

Combined interface configurable as one of the following:

z

I

2

C – Two-wire serial interface

z

SMBus

™

 compatible.

z

SPI – Serial peripheral interface

z

USART – Universal synchronous and asynchronous serial receiver and transmitter

z

Single transmit buffer and double receive buffer

z

Baud-rate generator

z

Address match/mask logic

z

Operational in all sleep modes

See the respective SERCOM mode chapters for details:

z

z

z

TX/RX DATA

CONTROL/STATUS

Mode n

BAUD/ADDR

Transmitter

Register Interface

Serial Engine

Receiver

Mode 0

Mode 1

Baud Rate

Generator

Address

Match

Mode Specific

PAD[3:0]