ThingMagic M5e-Compact User Manual
Page 127

Application Tag Commands
Command Set
127
LoadImage Command Fields
An example LoadImage single tag command is:.
Field
Value
Description
Length
0x5E
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.
| 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
Sub Command
0x0003
LoadImage
| Select
[Address, Data
Length, Data]
[n bytes]
The remaining fields from the
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.
Kill Password
[4 bytes]
The new Kill Password to be written to Reserved Memory
New Access
Password
[4 bytes]
The new Access Password to be written to Reserved Memory
PC Word
[2 bytes]
The value of the PC Word to be written to EPC Memory
EPC Data and
User Data
[76 bytes]
The 96 bit EPC value to be written to the tag.
Note:
The specific mapping of these 76 bytes to the tag EPC or
User Memory locations is defined in the
Alien Technology
Higgs 3 IC Custom Commands Application Note - Sept. 2008.
FF
XX
2D
03
E8
05
44
00 03
00
00
00
20
10
11 22
SOH
Length
OpCode
Timeout (ms)
Chip
Type
Option
Sub
Cmd
Select Data Address
Select
Length
Selct
Data
11
11
22
22
00
00
00
00
11
22
33
44
XX
XX
(76 bytes)
??
??
Current Access Pwd
Kill Password
New Access Password
PC Word
EPC + User
Data
CRC