MB89R118C datasheet(38/47 Pages) RAMXEED

38 / 47 page

MB89R118C

DS411-00001-6v0-E

3-9. Fast Write EAS Command

The Fast Write EAS command is the same as Write EAS command that writes the EAS bit to FeRAM. The

data rate in the response is twice as defined in ISO/IEC 15693.

The transponder performs verification after writing and returns an error code if the writing has failed.

The EAS bit must be set to “00H” to cancel anti-theft or goods-monitoring mode. The bit must be set to “01H”

to set up the goods-monitoring mode.

If the Option_flag (bit 7) is “0”, the transponder shall return its response when it has completed the write

operation starting after “t1nom (320.9 s) + a multiple of 4096/fc (302.1 s)” with total tolerance of 32/fc

(2.4 s) and latest within 20 ms. If it is “1”, transponder shall wait for the reception of an EOF from the reader/

writer and upon such reception still return its response (However, if an EOF is not sent within 38 ms, the

time-out error occurs and the transponder can receive another command) .



Request

[Request from the reader/writer to the transponder]



Response

[Response from the transponder to the reader/writer]

(1) When Error_flag set

(2) When Error_flag not set

3-10. Fast Read Multiple Blocks Unlimited Command

The Fast Read Multiple Blocks Unlimited command is the same as the Read Multiple Blocks Unlimited

command that reads the data of the specified successive blocks.

Up to 256 blocks of data can be read for one request. The data rate in the response is twice as defined in

ISO/IEC 15693.

If the Option_flag (bit 7) is “1”, the transponder adds block security status information in the response. If the

Option_flag (bit 7) is “0”, the transponder returns only the data in the specified blocks to the reader/writer.

The value of the “number of blocks” field specified in the request is the expected number of blocks minus 1.

Setting the number of blocks to “06H” makes a request to read 7 blocks. Up to “FFH” blocks can be set. (Note

that the maximum number of blocks is changed by setting the leading block number.)



Request

[Request from the reader/writer to the transponder]

SOF Flag

Command

(Fast Write EAS)

ICmanufacturer

code

(necessary)

UID

(Addressed mode)

Data

CRC EOF

8 bits

8 bits (“D1H”)

8 bits (“08H”)

64 bits

8 bits (“00H” or “01H”) 16 bits

SOF

Flag

Error code

CRC

EOF

8 bits (“01H”)

8 bits

16 bits

SOF

Flag

CRC

EOF

8 bits (“00H”)

16 bits

SOF Flag

Command

(Fast Read Multiple

Blocks Unlimited)

ICmanufacturer

code

(necessary)

UID

(Addressed

mode)

First

block

number

Number

blocks

CRC

EOF

8 bits

8 bits (“D5H”)

8 bits (“08H”)

64 bits

8 bits

16 bits

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