AS39513 datasheet(74/108 Pages) AMSCO

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[v1-10] 2018-Apr-25

AS39513 − Detailed Description

Write Block Command

Write Block Command Request:

Write Block Command Reply:

The write block command writes the four bytes of Block Data

to the EEPROM’s Application and Measurement areas. The

starting byte address to write is 4*BADDR. The block data is sent

lowest address and LSB first. In order to be written, the access

state must allow access to the block being written, and the

block must not have been locked.

The OPTION flag controls the response timing according to the

ISO 15693 standard, section 10.4.23. If the Option flag is set to

1 an error will be sent as the reply.

Lock Block Command

Lock Block Command Request:

Lock Block Command Reply:

The lock block command sets the bit in System EEPROM to mark

as “read-only” the four-byte block beginning at 4*BADDR. No

access passwords need to be set prior to using this command.

The OPTION flag controls the response timing according to the

ISO 15693 standard, section 10.4.33.

SOF

Flags

Command

UID

BADDR

Block Data

CRC

EOF

NFLAGS

0x21

64 bits

8 bits

4*8 bits

16 bits

SOF

Flags

CRC

EOF

RFLAGS

16 bits

3. For more information, please refer to the respective section of ISO/IEC 15693-3 specification (second edition, 2009-04-15).

SOF

Flags

Command

UID

BADDR

CRC

EOF

NFLAGS

0x22

64 bits

8 bits

16 bits

SOF

Flags

CRC

EOF

RFLAGS

16 bits

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