Application tag commands, Tag singulation fields – ThingMagic M5e-Compact User Manual

Page 150

Advertising
background image

Application Tag Commands

150

Command Set

BlockWrite Command Fields

An example BlockErase single tag command is:.

The response to the BlockErase command is an ACK. The format of the response is:

Field

Value

Description

Length

[1 byte]

Number of bytes in the command following the OpCode.

OpCode

0x2E

Gen2 Optional Command.

Time Out

[2 bytes]

Command timeout in milliseconds.

Chip Type

0x00

Gen2 2.0 Tags with BlockPermalock support

Tag Singulation Fields

| Select Option

[1 byte]

bit 6 (x1xx xxxx | 0x40) must be set, indicating a 1-byte sub command follows
this byte, and before the remaining

Tag Singulation Fields

Sub Command

0x00

BlockErase

Access Password

[4 bytes]

The Access Password for the tag.

Note:

Do not include password if Select Option = 0xX0.

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.

WordPointer

[4 bytes]

Starting, zero-based, 16-bit word address of the MemoryBank to be erased.

MemoryBank

[1 byte]

Memory bank who’s data will be erased. Standard Gen2 field values:

• 0x00 = Reserved

• 0x01 = EPC

• 0x02 = TID

• 0x03 = User

WordCount

[1 bytes]

Number of 16-bit words to be erased.

FF

1A

2E

03

E8

00

42

00

11

11

22

22

00

00

00

00

10

E2 00

SOH

Length

OpCode

Timeout (ms)

Chip

Type

Option

Sub

Cmd

Access Passwords

Select Data Address

Select
Length

Selct
Data

00

00

00

02

01

01

??

??

Address

Mem
Bank

Word

Count

CRC

FF

XX

2E

00

00

??

??

SOH

Length

OpCode

Status

CRC

Advertising
This manual is related to the following products: