User's Manual

Tag Programming
41
Tag Erase
To erase a Matrics 0+ tag, use the Tag Erase Te command. Only one tag should be
in the field when executing this command. All memory pages are filled with 0’s
and a 16-bit CRC is appended.
After erasing, the EPC code page will be filled with 0’s. Also, the user data page
will have all 0’s with a 16 bit CRC appended at the end. This allows the user data
page to be read with the Ra command. However, the EPC code page will return an
error on Ra, since there is no valid CRC. If any page is locked, then the Te
command will fail and none of the pages will be erased.
To erase a tag, enter the following:
}Te!
Locking Tags
Individual memory pages can be locked with the Lb command. Once a page is
locked, it cannot be unlocked or written. The following are typical Lock
commands.
To lock Page 0 (Kill code of any tag singulated using PE0 bits), enter:
}Lb!
To lock Page 2 (Kill code of any tag singulated using PE0 bits), enter:
}Lb,a:2! (locks page 2, the EPC code of any tag singulated using PE0
bits)
To lock Page 3 (User data with specific EPC code), enter:
}Lb,a:3,d:220000000000000000000003DCD0!