User Guide

eGo/SeGo Tag Command Set
85
Lock [1 byte] • 0x00 = no lock
• 0x01 = lock the data specified by Write Data
Write by Page won’t lock if authentication information is
not specified.
Write multiple won’t lock
Write Address [1|4byte] Indicates the start address of tag memory to be written:
• 4 Byte Address when TM Option = 0xX0
• 1 Byte Address otherwise
Select Command Type [1 byte] Indicates the Group Select criteria to apply as defined in
Group Select Options.
Only passed when TM Option=0x03.
For Command Type = 0x0E, indicates Select Type
For Command Type = 0x93, RFU
Select Address [1 byte] Only passed when TM Option=0x03.
Select Mask [1 byte] Only passed when TM Option=0x03.
For Command Type = 0x0E, indicates Select Mask
For Command Type = 0x93, RFU
Tag ID | Select Data [8 bytes] When:
• Command Type = 0x0D, 0x0E or 0x8D:
8 bytes = Tag ID
• Command Type = 0x93 AND TM Options=0x03:
[1 byte] = Select Data
[7 bytes] = RFU
• Command Type = 0x93 AND TM Options=0x01 or
0x02
[1 byte] = Select Address
[1 byte] = Select Data
[6 bytes] = RFU
Write Data [1|8 byte] Indicates the data to be written to the specified tag starting
at the specified address.
• 1 Byte when Command=0x0D and 0x0E
• 8 Bytes (1 page) when Command=0x8D and 0x93
Key Address [1 byte] Only passed when authentication enabled in TM Options.
Key Length in Bytes [1 byte] Only passed when authentication enabled in TM Options.
Field Value Description