User Guide

Table Of Contents
Allegro/Title-21 Tag Commands
64
ACK Response
NACK Response
No Response
Title-21 ACK Request (24h; C000h)
The Title-21 ACK Request command informs the tag that the reader has successfully
received the tag ID. This will result in the tag not responding to any message whose
transaction type is identical to the most recently received message for a specified period
of 10 seconds, as defined in Title 21 release 1. This command contains the following
request fields:
FF
0C +
(N+1)
24 00 00 00 A0 03 ?? ?? ?? ?? ?? ?? ?? ?? NN NN ?? ??
SOH Length TM
OpCode
Status TM
Option
Transaction
Type Code
Options Tag ID Page
Number
Page Data
Count (if
requested)
Page Data CRC
FF 0B 24 04 0A 00 A0 03 ??
?
?
?
?
?
?
?
?
?? ??
SOH Length TM
OpCode
Status TM
Option
Transaction
Type Code
Options Tag ID CRC
FF 00 24 04 00 E4 26
SOH Length TM
OpCode
Status CRC