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AT89C51ED2-RDTIM データシート(PDF) 112 Page - ATMEL Corporation

部品番号 AT89C51ED2-RDTIM
部品情報  8-bit Flash Microcontroller
PDF  137 Pages
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メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ED2-RDTIM データシート(HTML) 112 Page - ATMEL Corporation

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AT89C51RD2/ED2
4235E–8051–04/04
Read Function Description
This flow is similar for the following frames:
•
Reading Frame
•
EOF Frame/ Atmel Frame (only reading Atmel Frame)
Figure 51. Read Flow
Example
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
HOST
: 02 0000 05 07 02 F0
BOOTLOADER
: 02 0000 05 07 02 F0 Value . CR LF
HOST
: 02 0000 01 02 00 FB
BOOTLOADER
: 02 0000 01 02 00 FB Value . CR LF
Read function (read SBV)
Atmel Read function (read Bootloader version)



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