AS39513 datasheet(76/108 Pages) AMSCO

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[v1-10] 2018-Apr-25

AS39513 − Detailed Description

Select Command

Select Command Request:

The select command must be executed in addressed mode (In

NFLAGS, SELECT = 0 and ADDR = 1), so the UID is mandatory.

There are three possible actions for the select command.

If the UID in the command is equal to the device UID,

the AS39513 will enter the selected state and send the

reply:

If the UID in the command is different from the device

UID, and the device is in the selected state, the AS39513

will return to the ready state and not send a response.

If the UID in the command is different from the device

UID, and the device is not in the selected state, the

AS39513 will remain in its current state (ready or quiet)

and not send a response.

Reset-to-Ready Command

Reset-to-Ready Command Request:

Reset-to-Ready Command Reply:

The reset-to-ready command takes the RFID state machine out

of the quiet state and moves it into the ready state.

SOF

Flags

Command

UID

CRC

EOF

NFLAGS

0x25

64 bits

16 bits

SOF

Flags

CRC

EOF

RFLAGS

16 bits

SOF

Flags

Command

UID

CRC

EOF

NFLAGS

0x26

64 bits

16 bits

SOF

Flags

CRC

EOF

RFLAGS

16 bits

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