User Guide

Table Of Contents
eGo/SeGo Tag Command Set
90
Read Tag Data Request Fields
Field Value Description
TM OpCode 0x28 TM OpCode
Timeout [2 bytes] Indicates how long the command should spend attempting the
operation, in milliseconds.
TM Options
Note: TM Options field
combines bits 0-4
indicating general
processing
information and
bits 5 & 6
indicating
authentication
method. For the
final TM Options
setting, the two
“fields” should be
OR’d.
[1 byte] Indicates Command Type and additional fields to follow:
0x01 = For Standard Read Operations
bits 5 & 6
(LSB = bit 0)
Specify authentication method to use:
0x00 = authentication is disabled and Key values must not
be passed.
0x20 = RFU
0x40 = authentication is enabled and Key values must be
passed.
0x60 = RFU
Command Type 0x0C eGo/SeGo Read, or Protected Read
0x0B eGo/SeGo Data_Read
0x12 eGo/SeGo Read_Verify
Note: Requires a Write to occur immediately before.
0x80 eGo/SeGo Streamline_Group_Select_Equal_Page_Read
Note: Only works with eGo Plus tags.
0x92 eGo/SeGo Read_Verify_Page
Note: Requires a Write to occur immediately before.
RFU [1 byte] Reserved for Future Use
Read Byte Count [1 byte] Number of bytes starting at Read Address to read. Can
request 1 to 8 bytes.
Read Address [1 byte] Indicates the start address of tag memory to be read.