Lock tag (25h), Release version 1.0.34 – ThingMagic M5e-Compact User Manual
Page 237

Release Version 1.0.34
Appendix D: Deprecated and Modified Commands
237
For more information about the MemBank structure and the memory map of the Gen2
tag, please refer to the EPC Global GEN2 protocol specification. This command is not
supported by the EPC1 protocol.
Lock Tag (25h)
The Lock Tag command locks a specific address in the tag data section. The ID of the
tag, the address to lock, and a password for killing the tag need to be provided.
For the GEN2 protocol, the command format is as follows.
The Lock command sends a command sequence including Lock described in the Gen2
specification. The 32-bit Access Password argument must contain the access password
that was written previously to word addresses 0x02 and 0x03 (bit addresses 0x20-0x3F)
of the tag.
The Mask and Action bits correspond to the identically named fields described in Section
6.3.2.10.3.5 of the Gen2 specification. Each of these 10-bit fields is right-aligned (LSB-
aligned) in the corresponding 16-bit argument to the serial command, as shown in the
following table. These fields are passed directly to the tag.
MemBan
k
Description
0x00
Reserved
0x01
EPC
0x02
TID
0x03
User
FF
M + P + 6
25
03 E8
P bytes
00
00
00
08
M bytes
??
??
SO
H
Length
OpCode
Timeout
(ms)
Password
Address
Tag ID (M bytes)
CRC
FF
0A
25
03
E8
11
22
33
44
11
22
11
22
??
??
SOH
Length
OpCode
Timeout (ms)
Access Password
Mask Bits
Action Bits
CRC