LRI2K-A1S/1GE STMicroelectronics, LRI2K-A1S/1GE Datasheet - Page 70

• Manufacturer Part Number: LRI2K-A1S/1GE
• Description: IC MEMORY TAG 64BIT UID ADH ANT
• Manufacturer: STMicroelectronics
• Series: LRI2Kr

Specifications of LRI2K-A1S/1GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO15693, ISO18000-3, 64-bits
• Package / Case: 76mm x 45mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5533-2

Commands codes
20.19
70/86
Fast Inventory Initiated
Before receiving the Fast Inventory Initiated command, the LRI2K must have received an
Initiate or a Fast Initiate command in order to set the Initiate_ flag. If not, the LRI2K does not
answer to the Fast Inventory Initiated command.
On receiving the Fast Inventory Initiated request, the LRI2K runs the anticollision sequence.
The Inventory_flag must be set to 1. The Meaning of Flags 5 to 8 is shown in
Request flags 5 to 8 when bit 3 =
The request contains:
●
●
●
●
●
●
The LRI2K does not generate any answer if an error occurs.
Table 76.
The response contains:
●
●
Table 77.
During an Inventory process, if the VCD does not receive an RF LRI2K response, it waits a
time t
request EOF sent by the VCD.
●
●
where:
●
●
t
mode.
NRT
Request
Response SOF Response Flags DSFID
SOF
the flags,
the Inventory command code
the AFI if the AFI flag is set
the mask length
the mask value
the CRC
The flags
the Unique ID
If the VCD sends a 100% modulated EOF, the minimum value of t
t
If the VCD sends a 10% modulated EOF, the minimum value of t
t
t
t
and t
3
3
3
SOF
NRT
min = 4384/f
min = 4384/f
before sending an EOF to switch to the next slot. t
is the time required by the LRI2K to transmit an SOF to the VCD
is the nominal response time of the LRI2K
SOF
Request
Flags
8 bits
Fast Inventory Initiated request format
Fast Inventory Initiated response format
are dependent on the LRI2K-to-VCD data rate and subcarrier modulation
C
C
Inventory
(323.3 µs) + t
(323.3 µs) + t
Initiated
8 bits
Fast
C1h
IC Mfg
Code
02h
1. The data rate of the response is multiplied by 2.
SOF
NRT
00h
Optiona
8 bits
l AFI
length
Mask
8 bits
64 bits
UID
3
starts from the rising edge of the
Mask value
0 - 64 bits
CRC16
16 bits
3
3
is:
is:
CRC16
16 bits
Response EOF
Table 13:
Request
EOF
LRI2K