ATXMEGA128B3-AU ATMEL [ATMEL Corporation], ATXMEGA128B3-AU Datasheet - Page 45

• Manufacturer Part Number: ATXMEGA128B3-AU
• Description: 8/16-bit Atmel XMEGA B3 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

23. SPI – Serial Peripheral Interface
23.1
23.2
8074B–AVR–02/12
Features
Overview
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The Serial Peripheral Interface (SPI) is a high-speed synchronous data transfer interface using
three or four pins. It allows fast communication between an XMEGA device and peripheral
devices or between several microcontrollers. The SPI supports full-duplex communication.
A device connected to the bus must act as a master or slave.The master initiates and controls all
data transactions.
PORTC has one SPI. Notation of this peripheral is SPIC.
One SPI peripheral
Full-duplex, three-wire synchronous data transfer
Master or slave operation
Lsb first or msb first data transfer
Eight programmable bit rates
Interrupt flag at the end of transmission
Write collision flag to indicate data collision
Wake up from idle sleep mode
Double speed master mode
XMEGA B3
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