Setup Guide

Table Of Contents

"X" – eXtra Data Read and Write Descriptor Control

X[<R|W>[<PARAMS>]]

Anytime an EPC code is acquired from a tag, an opportunity exists to either read additional

data from the tag, or write data to it. These options are controlled by XDATA descriptors

managed by the X commands.

The TR265 reader maintains four (4) XDATA read descriptors and four (4) XDATA write

descriptors that may be individually configured to perform read/write operations.

By default all XDATA descriptors are disabled. When a tag's EPC is decoded, each of the XDATA

descriptors are checked for an ACTIVE status, which causes a read/write at the specified

location to be performed. Inside an inventory mode which supports XDATA (currently T, T5,

and T6) the operations will be performed right after the read of the EPC data, and the data

appears on the line of output immediately following the EPC data in the tag stream.

Flags

<PARAMS> may contain some or all of the following:

<#> – Descriptor number

<ACTIVE> – Descriptor enabled

<MEMBANK> – Tag memory bank for the operation

<LEN> – Length (in words) of data to be read/written

<EBV> – EBV pointer into memory for the start of the operation

<DATA> – The bytes of data to be written.

Sub-Commands

Sub Command Description Legal Values

for SET

Report all XDATA read descriptors.

XRR

Reset all XDATA read descriptors. -

XR<#>

Report a given XDATA read descriptor. 0..3

XR<#><ACTIVE>

Set the <ACTIVE> flag for XDATA read descriptor <#>. 0..1

XR<#><ACTIVE><...>

Configures XDATA read descriptor <#> to perform a read at

the specified location and length.

XR<#><ACTIVE><MEMBANK><LEN><EBV>

<ACTIVE> 0=inactive, 1=active

<MEMBANK> 0..3

See Description