MB89R119B datasheet(29/46 Pages) RAMXEED

29 / 46 page

MB89R119B

DS411-00002-4v0-E

2-6. Select command

Of the transponders that received the Select command, only the transponder whose UID matches the UID

included in the request enters the select state and returns a response.

The transponders, whose UIDs do not match the UID in the request, enter the ready states without returning

any response. The Select command is used only in Addressed mode.



Request

[From the reader/writer to the transponder]



Response

[From the transponder to the reader/writer]

(1) When Error_flag set

(2) When Error_flag not set

2-7. Reset to Ready command

On receiving the Reset to Ready command, the transponder returns to the ready state.



Request (from the reader/writer to the transponder)



Response (from the transponder to the reader/writer)

(1) When Error_flag set

(2) When Error_flag not set

SOF

Flag

Command (Select) UID (necessary)

CRC

EOF

8 bits

8 bits (“25H”)

64 bits

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

Flags

Command (Reset to Ready)

UID (Addressed mode)

CRC

EOF

8 bits

8 bits (“26H”)

64 bits

16 bits

SOF

Flags

Error code

CRC

EOF

8 bits (“01H”)

8 bits

16 bits

SOF

Flags

CRC

EOF

8 bits (“00H”)

16 bits

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