User Manual Part 2

RFID Interface
LRP2000 Long Range Passice Reader/Writer
85
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ABxS Command 94H: SN Fill
DESCRIPTION
Fills only the RFID tag specified by serial number with a one byte
value over multiple contiguous addresses.
DISCUSSION
This command is commonly used to clear an RFID tag's memory. It
writes a one byte value repetitively across a specified range of tag
addresses. Only the tag with the specified serial number will be
affected by this command. The controller will return a response after
the successful fill operation or when the timeout expires. The fill
function requires a Family ID and a Serial Number, one data value
byte, a starting address, and a fill length. It fills the specified tag with
the data value byte, starting at the specified start address for the
specified number of consecutive bytes. When Fill Length is set to 0,
the controller will write fill data from the start address to the end of the
tag's memory. 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. It returns a
response when done or when the timeout expires.
Field Remarks
Command Command number in hex preceded
by AAH
Family Code Tag Family ID - 00H = all tags
Reserved 00H
Start Address The tag address where the fill will
start