ThingMagic M5e-Compact - Manual (Page 129)

Application Tag Commands
Command Set 129
BlockReadLock Command Fields
An example BlockReadLock single tag command is:.
Field Value Description
Length 0x09 Number of bytes in the command following the OpCode.
OpCode 0x2D Gen2 Tag Specific Command.
Time Out [2 bytes] Command timeout in milliseconds.
Chip Type 0x05 Alien Higgs3.
Tag Singulation
Fields
| Select
Option
[1 byte] • bit 6 (x1xx xxxx | 0x40) must be set, indicating a 2-byte sub
command follows this byte, and before the remaining Tag
Singulation Fields
Sub Command 0x0009 BlockReadLock
Tag Singulation
Fields
| Select
[Address, Data
Length, Data]
[n bytes] The remaining fields from the Tag Singulation Fields
Note: Optional depending on the value of Select Option.
Current Access
Password [4 bytes] The Access Password for the tag. If Access Password is currently set
and the tag locked, the Access Password must be passed to allow
writing.
Command Lock
Bits [1 byte] Setting a bit value = 1 locks the corresponding User Memory Words.
The least significant bit is bit0:
bit7=1 Locks User words 0 thru 3
bit6=1 Locks User words 4 thru 7
bit5=1 Locks User words 8 thru 11
bit4=1 Locks User words 12 thru 15
bit3=1 Locks User words 16 thru 19
bit2=1 Locks User words 20 thru 23
bit1=1 Locks User words 24 thru 27
bit0=1 Locks User words 28 thru 31
Note: Depending on the tag memory configuration all 32 Words of
User memory may not be available.
FF 25 2D 03 E8 05 44 00 09 00 00 00 20 10 11 22
SOH Length OpCode Timeout (ms) Chip
Type
Option Sub
Cmd
Select Data Address Select
Length Selct
Data