LRI64-A6S2U STMICROELECTRONICS [STMicroelectronics], LRI64-A6S2U Datasheet - Page 34

• Manufacturer Part Number: LRI64-A6S2U
• Description: Memory tag IC at 13.56 MHz, with 64-bit unique ID and WORM user area, ISO 15693 and ISO 18000-3 Mode 1 compliant
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Command codes
18.3
34/52
Read Single Block
When receiving the Read Single Block command, the LRI64 reads the requested block and
sends back its 8-bit value in the response. The Option_Flag is supported. The Read Single
Block can be issued in both addressed and non addressed modes.
The request frame
●
●
●
●
●
If there is no error, at the LRI64, the response frame
●
●
●
●
Otherwise, if there is an error, the response frame
●
●
●
Table 10.
Figure 26. Read Single Block, request frame format
Figure 27. Read Single Block, response frame format, when Error_Flag is not set
Figure 28. Read Single Block, response frame format, when Error_Flag is set
1 to 7
Bit
0
Request flags
Read Single Block command code (20h,
Unique ID (Optional)
Block number
2-byte CRC
Response flags
Block locking status, if Option_Flag is set
1 byte of block data
2-byte CRC
Response flags (01h,
Error code (0Fh,
2-byte CRC
Request
SOF
Block locked
RFU
Block lock status
Response
SOF
Request
Name
(Figure
(Figure
(Figure
Flags
8 bits
(Figure
(Table 3
(Table
Table
Response
Response
Flags
8 bits
SOF
Command
(Table
15)
15)
15)
Code
8 bits
Table
20h
26) contains:
6)
and
7)
Response
BlockLock
10)
Table
Status
Flags
8 bits
6)
8 bits
01h
Value
4)
0
1
0
64 bits
UID
Code
8 bits
8 bits
Error
Data
0Fh
Table
Current block not locked
Current block locked
16 bits
2-Byte
2-Byte
16 bits
CRC
CRC
(Figure
9)
(Figure
Number
Block
8 bits
Response
Response
28) contains:
EOF
EOF
27) contains:
2-Byte
16 bits
Description
CRC
Request
EOF
AI09732
AI09734
AI09733
LRI64