LRI64-A1S STMICROELECTRONICS [STMicroelectronics], LRI64-A1S Datasheet - Page 15

• Manufacturer Part Number: LRI64-A1S
• Description: Memory TAG IC, 64-bit Unique ID with WORM User Area 13.56MHz, ISO15693 and ISO18000-3 Mode 1 Compliant
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

FLAGS AND ERROR CODES
Request Flags
In a Request, the 8-bit Flags Field specifies the ac-
tions to be performed by the LRI64, and whether
corresponding fields are present or not.
Flag bit 3 (the Inventory_flag) defines the way the
four most significant flag bits (5 to 8) are used.
When bit 3 is reset (0), bits 5 to 8 define the LRI64
selection criteria. When bit 3 is set (1), bits 5 to 8
define the LRI64 Inventory parameters.
Table 3. Request Flags 1 to 4
Note: 1. If the value of the Request Flag is a non authorized value,
Table 4. Request Flags 5 to 8 (when Bit 3 = 0)
Note: 1. Only bit 6 (Address flag) can be configured for the LRI64.
Bit
Bit
1
2
3
4
5
6
7
8
Sub-
carrier
Flag
Data_rate
Flag
Inventory
Flag
Protocol
Extension
Flag
Select
Flag
Address
Flag
Option
Flag
RFU
the LRI64 does not execute the command, and does not
respond to the request.
All others bits (5, 7 and 8) must be reset to 0.
Name
Name
1
1
Value
Value
0
1
0
1
0
0
0
1
0
0
1
1
Single sub-carrier
frequency mode.
(Option 1 is not supported)
High data rate mode.
(Option 0 is not supported)
Flags 5 to 8 meaning are
according to
Flags 5 to 8 meaning are
according to
No Protocol format
extension. Must be set to 0.
(Option 1 is not supported)
No selection mode.
Must be set to 0.
(Option 1 is not supported)
Non addressed mode.
The UID field is not present
in the request. All LRI64
shall answer to the request.
Addressed mode.
The UID field is present in
the request. Only the LRI64
that matches the UID
answers the request.
No option. Must be set to 0.
(Option 1 is not supported)
No option. Must be set to 0.
(Option 1 is not supported)
Description
Description
Table 4.
Table 5.
Table 5. Request Flags 5 to 8 (when Bit 3 = 1)
Note: 1. Bits 7 and 8 must be reset to 0.
Response Flags
In a Response, the 8-bit Flags Field indicates how
actions have been performed by the LRI64, and
whether corresponding fields are present or not.
Table 6. Response Flags 1 to 8
Response Error Code
If the Error Flag is set by the LRI64 in the Re-
sponse, the Error Code Field is present and pro-
vides information about the error that occurred.
Table 7.
ed by the LRI64.
Table 7. Response Error Code
Bit
Bit
Error
Code
5
6
7
8
1
2
3
4
5
6
7
8
0Fh
AFI Flag
Nb_slots
Flag
Option
Flag
RFU
Error Flag
RFU
RFU
RFU
RFU
RFU
RFU
RFU
Name
Name
shows the one error code that is support-
Error with no specific information given
Value
Value
0
1
0
1
0
0
0
1
0
0
0
0
0
0
0
1
Meaning
AFI field is not present
AFI field is present
16 slots
1 slot
No option. Must be set to 0.
(Option 1 is not supported)
No option. Must be set to 0.
(Option 1 is not supported)
No error
Error detected. Error
code is in the "Error"
field.
Description
Description
LRI64
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