Datasheet

23. SPI – Serial Peripheral Interface
23.1 Features
• 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
23.2 Overview
The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATmega8A and peripheral devices or between several AVR devices.
Figure 23-1. SPI Block Diagram
(1)
SPI2X
SPI2X
DIVIDER
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AVR 8-Bit Microcontroller
SPI – Serial Peripheral Interface
© 2017 Microchip Technology Inc.
Datasheet Complete
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