RFID Interface
LRP2000 Long Range Passice Reader/Writer
53
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ABxS Command 6 (06H): Block Write
DESCRIPTION
Write a block of data to an RFID tag.
DISCUSSION
This command is used to write segments of data to contiguous areas
of tag memory. It is capable of transferring up to 112 bytes of data
transferred from the Host with one command. The timeout value is
given in 1 msec increments and can have a value of 001EH to FFFEH
(65,534 ms). When the timeout is set to 0, the controller will return a
syntax error. The Block Write command consists of a start address
followed by the data stream to be written to the RFID tag. If the write
range exceeds the last tag address, the controller will return error
message 21H, invalid format. The controller will also return an error if
the write length is 0. The data to be written to the tag is contained in
the LSB of the register, and the MSB is always 00H.
Field
Remarks
Command
Command number in hex preceded by
AAH
Start Address
The tag address where the write will
start
Write Length
The number of tag addresses to be
written to in bytes
Timeout
Timeout value given in 1 ms units
(001EH - FFFEH)
Write Data
The data to be written
Message Terminator FFFFH
