參數(shù)資料
型號(hào)： MQ80C154-L16/883R
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 16 MHz, MICROCONTROLLER, CQFP44
文件頁(yè)數(shù)： 49/49頁(yè)
文件大小： 61013K
代理商： MQ80C154-L16/883R
142
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]
8285E–AVR–02/2013
19. SPI – Serial Peripheral Interface
19.1
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
19.2
Overview
Th e Ser ia l Per ip he ral Inte rface (SPI) allo ws high -spe ed syn chro no us da ta tran sfer b etwe en th e
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P and peripheral devices or between
several AVR devices.
The PRSPI bit in ”PRR – Power Reduction Register” on page 42 must be written to zero to enable SPI module.
Figure 19-1. SPI block diagram
Note:
1. Refer to Figure 1-1 on page 2, and Table 14-3 on page 68 for SPI pin placement.
The interconnection between Master and Slave CPUs with SPI is shown in Figure 19-2. The system consists of two
shift Registers, and a Master clock generator. The SPI Master initiates the communication cycle when pulling low
the Slave Select SS pin of the desired Slave. Master and Slave prepare the data to be sent in their respective shift
S
PI2X
S
PI2X
DIVIDER
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相關(guān)PDF資料
PDF描述
MD83C154XXX-30/883D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40
MQ80C154-16P883 8-BIT, 16 MHz, MICROCONTROLLER, CQFP44
MQ83C154XXX-L16/883D 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44
MQ83C154CXXX-25/883R 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
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