SCM SCL3711, Reference Manual, Page: 44 / 49

SCL3711 R
EFERENCE
M
ANUAL
44
6.4.1.8. Write-Erase 8 bytes (WRITE-E8)
Description
This command erases a memory block and then writes a value to it.
Format
CLA INS P1 P2 P3 Data
0xFF 0x5E 0x00 Block
Address
0x08 8 bytes of data to be
written
Where P2 codes the block address (value between 0x00 and 0xFF)
Response
Data SW1 SW2
8 bytes of data that have been written 0x90 0x00
6.4.1.9. Write-No-Erase 8 bytes (WRITE-NE8)
Description
This command writes with no erase to a block of memory.
This command does not erase the value of the targeted block before writing the new data.
Using this command, EEPROM bits can be set but not reset.
Format
CLA INS P1 P2 P3 Data
0xFF 0x60 0x00 Block
Address
0x08 8 bytes of data to be
written
Where P2 codes the block address (value between 0x00 and 0xFF).
Response
Data SW1 SW2
8 bytes of data 0x90 0x00
Example
Sending the following command to an NFC Forum type 1 tag that has the value (0x01 0x02
0x03 0x04 0x00 0x00 0x00 0x00) in the first EEPROM block
CLA INS P1 P2 P3 Data
0xFF 0x60 0x00 0x00 0x08 0x00 0x01 0x03 0x04
0x05 0x06 0x07 0x08
Will give the answer
Data SW1 SW2
0x01 0x03 0x03 0x04
0x05 0x06 0x07 0x08 0x90 0x00