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NEO 2 Interface Developer’s Guide
Copyright © 2019, International Technologies & Systems Corporation. All rights reserved.
315
Command Frame
Byte 0-9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
Byte 16
Header Tag &
Protocol
Version
Command
Sub-
Command
Data Length
(MSB)
Data Length
(LSB)
Mode,
Card Type,
Operation
Count
Backup
Block
Backup Cmd
Length
ViVOtech2\0
2Ch
0Ah
00h
0Bh
31h
1Dh
08h
Byte 17
Byte 18
Byte 19
Byte 20
Byte 21
Byte 22
Byte 23
Byte 24
Primary
Block
Key Type
Key
1Ch
02h
Ka
Kb
Kc
Kd
Ke
Kf
Byte 25
Byte 26
CRC MSB
CRC LSB
8.17.
High-level Pass-Through Commands for NFC Cards
This section contains serial commands that implement higher level functionality for the NFC
Cards. These commands do not work for non-NFC cards.
8.17.1.
NFC Commands (2C-40)
This command uses Data[0] in command data field to implement different functions. This
command should be used in Pass-Through mode and command with “Poll for a NFC Tag” data
should be used first. Command with other data can only be used after the “Poll for a NFC Tag”
command has indicated that a NFC tag is present.
NFC Commands
Byte 0-9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14 ...
Byte 13+n
Byte 14+n
Byte 15+n
Header Tag &
Protocol
Version
Command
Sub-
Command
Data
length
(MSB)
Data
length
(LSB)
Data
CRC(MSB)
CRC(LSB)
ViVOtech2\0
2Ch
40
00
00
See Below
Individial commands in NFC command set are distingushed as to parameters in Data field.
NFC Command Set List
Command
Data
length
Command Data Field Description
Poll for a NFC Tag
2
Data[0]: FFh
Data[1]: Timeout (in second)
Tag1 Static Get All Data
1
Data[0]: 11h