ATmega169P datasheet(158/393 Pages) ATMEL

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ATmega169P 데이터시트(PDF) 158 Page - ATMEL Corporation

부품명	ATmega169P

상세설명	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	393 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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158 / 393 page

158

8018N–AVR–08/09

ATmega169P

18. SPI – Serial Peripheral Interface

18.1

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

18.2

Overview

The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the

ATmega169P and peripheral devices or between several AVR devices.

The PRSPI bit in ”PRR – Power Reduction Register” on page 45 must be written to zero to

enable SPI module.

Figure 18-1. SPI Block Diagram

(1)

Note:

1. Refer to Figure 1-1 on page 2, and Table 13-6 on page 74 for SPI pin placement.

DIVIDER

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