LRI2K datasheet(12/89 Pages) STMICROELECTRONICS

12 / 89 page

Description

LRI2K

12/89

1.2

Commands

The LRI2K supports the following commands:

●

Inventory, used to perform the anticollision sequence.

●

Stay Quiet, used to put the LRI2K in quiet mode, where it does not respond to any

inventory command.

●

Select, used to select the LRI2K. After this command, the LRI2K processes all

Read/Write commands with Select_flag set.

●

Reset To Ready, used to put the LRI2K in the ready state.

●

Read Block, used to output the 32 bits of the selected block and its locking status.

●

Write Block, used to write the 32-bit value in the selected block, provided that it is not

locked.

●

Lock Block, used to lock the selected block. After this command, the block cannot be

modified.

●

Read Multiple Blocks, used to read the selected blocks and send back their value.

●

Write AFI, used to write the 8-bit value in the AFI register.

●

Lock AFI, used to lock the AFI register.

●

Write DSFID, used to write the 8-bit value in the DSFID register.

●

Lock DSFID, used to lock the DSFID register.

●

Get System Info, used to provide the system information value

●

Get Multiple Block Security Status, used to send the security status of the selected

block.

●

Initiate, used to trigger the tag response to the Inventory Initiated sequence.

●

Inventory Initiated, used to perform the anticollision sequence triggered by the Initiate

command.

●

Kill, used to definitively deactivate the tag.

●

Write Kill, used to write the 32-bit Kill code value

●

Lock Kill, used to lock the Kill Code register.

●

Fast Initiate, used to trigger the tag response to the Inventory Initiated sequence.

●

Fast Inventory Initiated, used to perform the anticollision sequence triggered by the

Initiate command.

●

Fast Read Block, used to output the 32 bits of the selected block and its locking status.

●

Fast Read Multiple Blocks, used to read the selected blocks and send back their

value.

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