Transcription of Introduction • SPI Pin Functionality Features
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Introduction • SPI Pin Functionality Features
Atmel AVR 8-bit Microcontroller AVR151: Setup and Use of the SPI APPLICATION NOTEI ntroductionThis application note describes how to set up and use the on-chip SerialPeripheral Interface (SPI) of the Atmel AVR microcontroller. Most AVRdevices come with an on board SPI and can be configured according to thisdocument. This document contains, theoretical background and the steps toconfigure the SPI to run in both master mode and slave SPI Pin Functionality Multi Slave Systems SPI Timing SPI Transmission Conflicts Emulating the SPI Code examples for Polled operation Code examples for Interrupt Controlled operationAtmel-2585D-Setup-and-Use-of-th e-SPI_AVR151_Application Note-02/2016 Table of Description of the Transmission Between Master and of the Slave Systems - SS Pin For High Speed Transmission the 1: SPI Communication Controlled by 2: SPI Communication Controlled by AVR151: Setup and Use of the SPI [APPLICATION NOTE]Atmel-2585D-Setup-and-Use-of-the-SP I_AVR151_Application Note-02/201621.
The Slave Select ( SS) pin plays a central role in the SPI configuration. Depending on the mode the part is running in and the configuration of this pin, it can be used to activate or deactivate the devices. The SS pin can be compared with a chip select pin which has some extra features.
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