LRI64-A1S STMICROELECTRONICS [STMicroelectronics], LRI64-A1S Datasheet - Page 23

• 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]

Write Single Block
When receiving the Write Single Block command,
the LRI64 writes the requested block with the data
contained in the Request and report the success
of the operation in the Response. The Option_Flag
is not supported and must be set to 0. The Write
Single Block can be issued in both addressed and
non addressed modes.
During the write cycle t
cur, otherwise the LRI64 may program the data in-
correctly in the memory.
The Request Frame
–
–
–
Figure 31. Write Single Block, Request Frame Format
Figure 32. Write Single Block, Response Frame Format, when Error_Flag is not Set
Figure 33. Write Single Block, Response Frame Format, when Error_Flag is Set
Figure 34. Write Single Block Frame Exchange between VCD and LRI64
Request Flags
Write Single Block Command Code (21h,
Table
Unique ID (Optional)
Request
9.)
VICC
VICC
VCD
SOF
Request
(Table 3.
Flags
8 bits
(Figure
SOF
W
, no modulation shall oc-
Command
Block Request
Write Single
Code
8 bits
31.) contains:
and
21h
Response
Table
SOF
Response
SOF
EOF
4.)
Response
64 bits
Flags
8 bit
UID
01h
Response
t1
Flags
8 bits
SOF
Code
8 bits
Error
0Fh
tw
–
–
–
If there is no error, at the LRI64, an empty Re-
sponse Frame
write cycle, containing no parameters. It just con-
tains:
–
–
Otherwise, if there is an error, the Response
Frame
–
–
–
2-Byte
16 bits
CRC
Block Response
Number
Block
8 bits
Write Single
Block Number
Data
2-byte CRC
Response Flags
2-byte CRC
Response Flags (01h,
Error Code (0Fh,
2-byte CRC
16 bits
2-Byte
CRC
(Figure
Response
EOF
8 bits
t1
Data
Response
EOF
33.) contains:
(Figure
EOF
SOF
(Figure
(Figure
(Figure
16 bits
2-Byte
CRC
Block Response
(Table
Table
Write sequence when error
Write Single
32.) is sent back after the
16.)
16.)
16.)
Table
Request
7.)
6.)
EOF
6.)
EOF
AI06833B
AI09735
AI09736
AI09737
LRI64
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