User's Manual

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Command description
Argument
Size
Value
Description
Command ID
1
0x91
ICODE_INVENTORY_NEXT
AFI
1
X
Application Family Identifier
Response description
ACK
1
0x00
Command ID
1
0x91
ICODE_INVENTORY_NEXT
UID
8
XXX
Unique identifier
DSFID
1
X
Data Storage Format Identifier
More cards flag 1 X
0x00
–
no more cards in range of antenna
0x01 – more cards in range of antenna
Example:
HOST=>READER: 0x91 – ICODE_INVENTORY_NEXT
0x00 – Application Family Identifier
READER=>HOST: 0x00 – ACK byte
0x91 – related command code ICODE_INVENTORY_NEXT
0x04 0x8F 0x7F 0x0A 0x01 0x24 0x16 0xE0 – UID
0x00 – DSFID
0x00 – no more cards available for reading
5.6.3 Stay quiet (0x92)
This command performs an ISO15693 Stay Quiet command to the selected TAG. When the tag receives the
Stay quiet command, it enters the quiet state and will not send back a response. The TAG exits the quiet state
upon the execution of a reset (power off) or the command ICODE_INVENTORY_START . Please refer to the
NXP documentation for more information.
Command description
Argument
Size
Value
Description
Command ID
1
0x92
ICODE_STAY_QUIET
Response description
ACK
1
0x00
Command ID
1
0x92
ICODE_STAY_QUIET
Example:
HOST=>READER: 0x92 – ICODE_STAY_QUIET
READER=>HOST: 0x00 – ACK byte
0x92 – related command code ICODE_STAY_QUIET
5.6.4 Read block (0x93)
The read block command should be used to read data stored in TAG blocks. It takes as arguments the block
number of the first block to be read, and the number of blocks to be read. The returned ACK answer contains
data read from the specified tag memory. The number of bytes of this data is ICODE block size (4) multiplied
by the number of blocks to be read.