參數(shù)資料
型號： AT90S4433-8AC
廠商： Atmel
文件頁數(shù)： 79/126頁
文件大?。?/td> 0K
描述： IC MCU 4K FLSH 8MHZ A/D 32TQFP
標(biāo)準(zhǔn)包裝： 250
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)： 20
程序存儲器容量： 4KB（2K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量： 128 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 6x10b
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 32-TQFP
包裝： 托盤
56
AT90S/LS4433
1042H–AVR–04/03
Multi-processor
Communication Mode
The Multi-processor Communication mode enables several slave MCUs to receive data
from a Master MCU. This is done by first decoding an address byte to find out which
MCU has been addressed. If a particular slave MCU has been addressed, it will receive
the following data bytes as normal, while the other slave MCUs will ignore the data bytes
until another address byte is received.
For an MCU to act as a Master MCU, it should enter 9-bit Transmission mode (CHR9 in
UCSRB set). The ninth bit must be one to indicate that an address byte is being trans-
mitted, and zero to indicate that a data byte is being transmitted.
For the Slave MCUs, the mechanism appears slightly differently for 8-bit and 9-bit
Reception mode. In 8-bit Reception mode (CHR9 in UCSRB cleared), the stop bit is one
for an address byte and zero for a data byte. In 9-bit Reception mode (CHR9 in UCSRB
set), the ninth bit is one for an address byte and zero for a data byte, whereas the stop
bit is always high.
The following procedure should be used to exchange data in Multi-processor Communi-
cation mode:
1.
All slave MCUs are in Multi-processor Communication mode (MPCM in UCSRA
is set).
2.
The Master MCU sends an address byte, and all Slaves receive and read this
byte. In the slave MCUs, the RXC Flag in UCSRA will be set as normal.
3.
Each Slave MCU reads the UDR Register and determines if it has been
selected. If so, it clears the MPCM bit in UCSRA, otherwise it waits for the next
address byte.
4.
For each received data byte, the receiving MCU will set the Receive Complete
Flag (RXC in UCSRA). In 8-bit mode, the receiving MCU will also generate a
Framing Error (FE in UCSRA set), since the stop bit is zero. The other Slave
MCUs, which still have the MPCM bit set, will ignore the data byte. In this case,
the UDR Register and the RXC or FE Flags will not be affected.
5.
After the last byte has been transferred, the process repeats from step 2.
相關(guān)PDF資料
PDF描述
AT90S8515A-8PC IC MCU 8K FLSH 8MHZ 40DIP
AT90S8535-8PI IC MCU 8K FLSH 8MHZ A/D IT 40DIP
AT90USB1287-16AUR IC MCU AVR 128K ISP USB TQFP64
AT90USB162-16AUR IC AVR MCU 16K FLASH 32TQFP
AT91FR40162SB-CU-999 IC MCU 32BIT RISC 121BGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90S4433-8AI 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit AVR Microcontroller with 4K Bytes of In-System Programmable Flash
AT90S4433-8PC 功能描述:8位微控制器 -MCU 8 bit 4k byte RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT90S4433-8PI 功能描述:8位微控制器 -MCU 4K Flash 3V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT90S4434 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
AT90S4434-8AC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*