at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 60

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

Programming/Erasing
memory
Requests from Host
Answers from Bootloader
Starting application
Requests from Host
7663B–8051–03/07
Command
Program selected memory
Erase selected memory
The boot loader answers with:
•
•
•
The application can only be started by a Watchdog reset.
No answer is returned by the bootloader.
‘.’ & ‘CR’ & ’LF’ when the data are programmed
‘X’ & ‘CR’ & ‘LF’ if the checksum is wrong
‘P’ & ‘CR’ & ‘LF’ if the Security is set
Record
Type
00h
04h
nb of data
Record
Length
05h
Command
Start application with watchdog
address
Offset
0000h
start
Data[0]
00h
x
Data[1]
FFh
x
Data[2]
Record
Type
00h
01h
x
Record
Data[3]
Length
00h
00h
x
Data[4]
Offset
0000h
02h
x
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