M24LR64-R-DW6T/2 STMICROELECTRONICS [STMicroelectronics], M24LR64-R-DW6T/2 Datasheet - Page 78

• Manufacturer Part Number: M24LR64-R-DW6T/2
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Commands codes
26.4
78/126
Write Single Block
On receiving the Write Single Block command, the M24LR64-R writes the data contained in
the request to the requested block and reports whether the write operation was successful
in the response. The Protocol_extention_flag should be set to 1 for the M24LR64-R to
operate correctly. If the Protocol_extention_flag is at 0, the M24LR64-R answers with an
error code. The Option_flag is supported.
During the RF write cycle W
Otherwise, the M24LR64-R may not program correctly the data into the memory. The W
time is equal to t
Table 41.
1. Gray means that the field is optional.
Request parameters:
●
●
●
Table 42.
Response parameter:
●
Table 43.
Response parameter:
●
Request
Response SOF
Response
SOF
SOF
UID (optional)
Block number
Data
No parameter. The response is send back after the writing cycle.
Error code as Error_flag is set:
–
–
–
–
–
03h: the option is not supported
0Fh: error with no information given
10h: the specified block is not available
12h: the specified block is locked and its contents cannot be changed.
13h: the specified block was not successfully programmed
Request_
8 bits
flags
Write Single Block request format
Write Single Block response format when Error_flag is NOT set
Write Single Block response format when Error_flag is set
Response_
1nom
8 bits
flags
Response_flags
Single
+ 18 × 302 µs.
Block
Write
21h
8 bits
t
, there should be no modulation (neither 100% nor 10%).
Error code
Doc ID 15170 Rev 8
8 bits
64 bits
UID
(1)
CRC16
number
16 bits
16 bits
Block
CRC16
16 bits
32 bits
Data
CRC16
Response EOF
16 bits
M24LR64-R
Response
Request
EOF
EOF
t