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AT89C51ID2-RDTIM Folha de dados(PDF) 134 Page - ATMEL Corporation

Nome de Peças AT89C51ID2-RDTIM
Descrição Electrónicos  8-bit Flash Microcontroller
PDF  159 Pages
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Fabricante Electrônico  ATMEL [ATMEL Corporation]
Página de início  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ID2-RDTIM Folha de dados(HTML) 134 Page - ATMEL Corporation

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AT89C51ID2
4289A–8051–09/03
Example
Read Function
This flow is similar for the following frames:
•
Reading Frame
•
EOF Frame/ Atmel Frame (only reading Atmel Frame)
Description
Figure 56. Read Flow
HOST
: 05 0000 04 0000 0020 00 D7
BOOTLOADER
: 05 0000 04 0000 0020 00 D7
BOOTLOADER
0000=-----data------ CR LF
(16 data)
BOOTLOADER
0010=-----data------ CR LF
(16 data)
BOOTLOADER
0020=data CR LF
( 1 data)
Display data from address 0000h to 0020h
Host
Bootloader
Read Command
’X’ & CR & LF
RD_WR_SECURITY
Wait Read Command
Read Value
Send Security error
Send Data Read
Send Read Command
Wait Checksum Error
Wait Value of Data
Wait Security Error
OR
COMMAND ABORTED
COMMAND FINISHED
Send Checksum error
COMMAND ABORTED
’L’ & CR & LF
OR
’value’ & ’.’ & CR & LF
Checksum error



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