AT89LP51ED2 Atmel Corporation, AT89LP51ED2 Datasheet - Page 211
AT89LP51ED2
Manufacturer Part Number
AT89LP51ED2
Description
Manufacturer
Atmel Corporation
Specifications of AT89LP51ED2
Flash (kbytes)
64 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-1C
Max I/o Pins
42
Spi
1
Twi (i2c)
1
Uart
1
Adc Channels
7
Adc Resolution (bits)
10
Adc Speed (ksps)
153.8
Sram (kbytes)
2.25
Eeprom (bytes)
4096
Self Program Memory
API
Operating Voltage (vcc)
2.4 to 5.5
Timers
4
Isp
SPI/OCD/UART
Watchdog
Yes
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24.5.7
Figure 24-14. Blank Check Flow
3714A–MICRO–7/11
COMMAND FINISHED
Blank Check Command Description
Wait Address not
Send Blank Check Command
Erased
OR
Host
OR
COMMAND ABORTED
Wait Checksum Error
COMMAND FINISHED
Wait COMMAND_OK
Example:
Example:
Programming Data (write 55h at address 0010h in the Flash)
Programming Atmel function (write SSB to level 2)
Writing Frame (write BSB to 55h)
Blank Check ok at address xxxx
Blank Check ok
Blank Check with checksum error
BOOTLOADER
HOST
BOOTLOADER
HOST
BOOTLOADER
HOST
BOOTLOADER
HOST
HOST
BOOTLOADER
BOOTLOADER
HOST
Blank Check Command
address & CR & LF
: 05 0000 04 0000 7FFF 01 78 xxxx CR LF
: 01 0010 00 55 9A
: 01 0010 00 55 9A . CR LF
: 02 0000 03 05 01 F5
: 02 0000 03 05 01 F5. CR LF
: 03 0000 03 06 00 55 9F
: 03 0000 03 06 00 55 9F . 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
’X’ & CR & LF
’.’ & CR & LF
AT89LP51RD2/ED2/ID2 Preliminary
Send COMMAND_OK
Send Checksum Error
Wait Blank Check Command
Bootloader
Send First Address
not Erased
Checksum Error
Flash Blank
211
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