參數(shù)資料
型號(hào): T89C51RD2-SMSCM
廠商: TEMIC SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁(yè)數(shù): 66/104頁(yè)
文件大小: 798K
代理商: T89C51RD2-SMSCM
66
T89C51RD2
4243G
8051
05/03
Full Chip Erase
The ISP command "Full Chip Erase" erases all User Flash memory (fills with FFh) and
sets some Bytes used by the bootloader at their default values:
BSB = FFh
SBV = FCh
SSB = FFh and finally erase the Software Security Bits
The Full Chip Erase does not affect the bootloader.
Checksum Error
When a checksum error is detected send
X
followed with CR&LF.
Flow Description
Overview
An initialization step must be performed after each Reset. After microcontroller reset,
the bootloader waits for an autobaud sequence ( see section
autobaud performance
).
When the communication is initialized the protocol depends on the record type
requested by the host.
FLIP, a software utility to implement ISP programming with a PC, is available from the
Atmel the web site.
Communication Initialization
The host initializes the communication by sending a
U
character to help the bootloader
to compute the baudrate (autobaud).
Figure 25.
Initialization
Host
Bootloader
"U"
Performs Autobaud
Init Communication
If (not received "U")
Else
"U"
Communication Opened
Sends Back
U
Character
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T89C51RD2-SMSC-M 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-SMSIL 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:0 to 40 MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-SMSI-L 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-SMSIM 功能描述:IC MICRO CTRL 64K FLASH 68PLCC RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:89C 標(biāo)準(zhǔn)包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設(shè)備:POR,WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB(32K x 8) 程序存儲(chǔ)器類(lèi)型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 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
T89C51RD2-SMSI-M 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller