參數(shù)資料
型號(hào): AT90S8515A-8PC
廠商: Atmel
文件頁數(shù): 55/112頁
文件大?。?/td> 0K
描述: IC MCU 8K FLSH 8MHZ 40DIP
標(biāo)準(zhǔn)包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 8KB(4K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大小: 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
47
AT90S8515
0841G–09/01
Serial Peripheral
Interface – SPI
The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer
between the AT90S8515 and peripheral devices or between several AVR devices. The
AT90S8515 SPI features include the following:
Full-duplex, 3-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Four Programmable Bit Rates
End-of-Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode (Slave Mode Only)
Figure 34. SPI Block Diagram
The interconnection between master and slave CPUs with SPI is shown in Figure 35.
The PB7(SCK) pin is the clock output in the Master Mode and is the clock input in the
Slave Mode. Writing to the SPI Data Register of the master CPU starts the SPI clock
generator and the data written shifts out of the PB5(MOSI) pin and into the PB5(MOSI)
pin of the slave CPU. After shifting one byte, the SPI clock generator stops, setting the
end-of-transmission flag (SPIF). If the SPI interrupt enable bit (SPIE) in the SPCR regis-
ter is set, an interrupt is requested. The Slave Select input, PB4(SS), is set low to select
an individual slave SPI device. The two shift registers in the master and the slave can be
considered as one distributed 16-bit circular shift register. This is shown in Figure 35.
When data is shifted from the master to the slave, data is also shifted in the opposite
direction, simultaneously. This means that during one shift cycle, data in the master and
the slave are interchanged.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90S8515A-8PI 功能描述:IC MCU 8BIT 8KB FLASH 40DIP 制造商:microchip technology 系列:AVR? 90S 包裝:管件 零件狀態(tài):停產(chǎn) 核心處理器:AVR 核心尺寸:8-位 速度:8MHz 連接性:SPI,UART/USART 外設(shè):欠壓檢測/復(fù)位,POR,PWM,WDT I/O 數(shù):32 程序存儲(chǔ)容量:8KB(4K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 容量:512 x 8 RAM 容量:512 x 8 電壓 - 電源(Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:40-DIP(0.600",15.24mm) 供應(yīng)商器件封裝:40-PDIP 基本零件編號(hào):AT90S8515 標(biāo)準(zhǔn)包裝:18
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