TransCore IT241005422 Manual De Usuario

The Auto Beep on ACK bit, when set to 1, enables the automatic initiation of the 
encoded A/V sequence determined in Auto Beep A/V code bits 0 to 4 after a Title 21 
ACK is processed.

The Auto Beep on read bit, when set to 1, enables the automatic initiation of the 
encoded A/V sequence determined in Auto Beep A/V code bits 0 to 4 after a Title 21 
read request has been processed, and the tag enters an idle state.

For example, if you want the tag to beep three times with a HI tone whenever it 
receives a Title 21 read, program the byte to a value of 01001101, or a hex 4D. Pro-
gram general Page 0 with this byte, and the following sequence must occur:

1.

Read the page lock bits (owner Page 0), note their values for later restoration.

2.

Write to owner Page 0 to change the lock bit for general Page 0 to a value of 0. 

3.

Write to general Page 0, changing only the mode bits field to the value desired 
(hex 4D in the example on page C-7). 

4.

Write to owner Page 0 to change the lock bit for general Page 0 to a value of 1. 

The IT2235 Tag can store a custom message of up to 16 ASCII characters, and display 
the message on the LCD when the tag pushbutton is pressed. To use this capability, 
program the custom message into one of the general data pages (Pages 2 to 15), and 
then send a GEN ACK command with a pointer indicating where the custom message 
is stored in tag memory. 

The GEN ACK command has a field called the LCD message page pointer that con-
sists of 1 byte (8 bits). If the custom message, for example, is stored in general Page 5, 
this page pointer in the GEN ACK command is set to a value of 00000101 binary, or 
05 hex.

The LCD controller always interprets the data as ASCII data. Therefore, if a GEN 
ACK command is sent that points to a custom message page and the page has normal 

0

1

0

1

1

HI-LO-HI-LO

0

1

1

1

1

LO-LO-LO

1

0

0

1

1

HI-HI-HI

1

0

1

1

1

HI-HI

1

1

0

1

1

Long HI

1

1

1

0

1

LO

1

1

1

1

0

HI

1

1

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1

HI