m24lr64-r STMicroelectronics, m24lr64-r Datasheet - Page 84

• Manufacturer Part Number: m24lr64-r
• Description: 64 Kbit Eeprom With Password Protection & Dual Interface 400 Khz I?c Serial Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

Commands codes
26.8
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Write AFI
On receiving the Write AFI request, the M24LR64-R programs the 8-bit AFI value to its
memory. The Option_flag is supported.
During the RF write cycle W
Otherwise, the M24LR64-R may not write correctly the AFI value into the memory. The W
time is equal to t
Table 54.
1. Gray means that the field is optional.
Request parameter:
●
●
Table 55.
Response parameter:
●
Table 56.
Response parameter:
●
Response
Response
Request
SOF
SOF
SOF
UID (optional)
AFI
No parameter.
Error code as Error_flag is set
–
–
–
–
03h: the option is not supported
0Fh: error with no information given
12h: the specified block is locked and its contents cannot be changed.
13h: the specified block was not successfully programmed
Request
_flags
8 bits
Write AFI request format
Write AFI response format when Error_flag is NOT set
Write AFI response format when Error_flag is set
Response_
8 bits
Response_flags
flags
1nom
Write
8 bits
AFI
27h
+ 18 × 302 µs.
t
, there should be no modulation (neither 100% nor 10%).
Error code
Doc ID 15170 Rev 9
8 bits
64 bits
UID
(1)
CRC16
16 bits
CRC16
16 bits
8 bits
AFI
CRC16
16 bits
M24LR64-R
Response
Response
Request
EOF
EOF
EOF
t