ThingMagic M5e-Compact User Manual

Page 127

Advertising
background image

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.

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

0x0003

LoadImage

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.

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

Advertising
This manual is related to the following products: