at89c51rc2-slsil ATMEL Corporation, at89c51rc2-slsil Datasheet - Page 101

• Manufacturer Part Number: at89c51rc2-slsil
• Description: 8-bit Microcontroller With 16k/ 32k Bytes Flash
• Manufacturer: ATMEL Corporation

Blank Check Command
Description
Figure 43. Blank Check Flow
Example
4180E–8051–10/06
COMMAND FINISHED
Wait Address not
Send Blank Check Command
erased
OR
Host
OR
COMMAND ABORTED
Wait Checksum Error
COMMAND FINISHED
Wait COMMAND_OK
Blank Check ko at address xxxx
Blank Check ok
Blank Check with checksum error
BOOTLOADER
HOST
HOST
BOOTLOADER
BOOTLOADER
HOST
Blank Check Command
address & CR & LF
’.’ & CR & LF
’X’ & CR & LF
: 05 0000 04 0000 7FFF 01 78 xxxx CR LF
: 05 0000 04 0000 7FFF 01 78
: 05 0000 04 0000 7FFF 01 78
: 05 0000 04 0000 7FFF 01 78 . CR LF
: 05 0000 04 0000 7FFF 01 70 X CR LF CR LF
: 05 0000 04 0000 7FFF 01 70
Send COMMAND_OK
Send Checksum error
Wait Blank Check Command
Bootloader
AT89C51RB2/RC2
Send first Address
not erased
Checksum error
Flash blank
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