ATXMEGA64A1-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATXMEGA64A1-CU

8/16-bit XMEGA A1 Microcontroller

Atmel Corporation 

XMEGA A1

20. SPI - Serial Peripheral Interface

20.1 Features

20.2 Overview

• Four Identical SPI peripherals

• Full-duplex, Three-wire Synchronous Data Transfer

• Master or Slave Operation

• LSB First or MSB First Data Transfer

• Seven Programmable Bit Rates

• End of Transmission Interrupt Flag

• Write Collision Flag Protection

• Wake-up from Idle Mode

• Double Speed (CK/2) Master SPI Mode

The Serial Peripheral Interface (SPI) allows high-speed full-duplex, synchronous data transfer

between different devices. Devices can communicate using a master-slave scheme, and data is

transferred both to and from the devices simultaneously.

PORTC, PORTD, PORTE, and PORTF each has one SPI. Notation of these peripherals are

SPIC, SPID, SPIE, and SPIF, respectively.

37

8067L–AVR–08/10

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