參數(shù)資料
型號: T89C51RD2-SLRCM
廠商: TEMIC SEMICONDUCTORS
元件分類: 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, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 66/104頁
文件大小: 798K
代理商: T89C51RD2-SLRCM
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-SLRC-M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-SLRI-L 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller
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T89C51RD2-SLRI-M 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-SLSCL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40 MHz Flash Programmable 8-bit Microcontroller