ATmega16HVB datasheet(98/273 Pages) ATMEL

部件名	ATmega16HVB

功能描述	8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash

PDF	273 Pages

Scroll/Zoom	100%

制造商	ATMEL [ATMEL Corporation]

网页	http://www.atmel.com

标志

98 / 273 page

8042A–AVR–07/09

ATmega16HVB/32HVB

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 Protection Flag

• 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

ATmega16HVB/32HVB and peripheral devices or between several AVR devices.

When the SPI is not used, power consumption can be minimized by writing the PRSPI bit in

PRR0 to one. See ”PRR0 – Power Reduction Register 0” on page 40 for details on how to use

the PRSPI bit.

Figure 18-1. SPI Block Diagram(1)

Note:

1. Refer to ”Alternate Port Functions” on page 72 for SPI pin placement.

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ATmega16HVB 数据表(PDF) 98 Page - ATMEL Corporation