m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 117

• Manufacturer Part Number: m24lr16e-r
• Description: 16 Kbit Eeprom With Password Protection, Dual Interface & Energy Harvesting 400 Khz I²c Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

M24LR16E
26.24
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the ReadCfg command to the end of the M24LR16E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin remains in high-Z
state.
WriteEHCfg
On receiving the WriteEHCfg command, the M24LR16E-R writes the data contained in the
request to the Configuration byte and reports whether the write operation was successful in
the response. The Protocol_extension_flag should be set to 0 for the M24LR16E-R to
operate correctly. If the Protocol_extension_flag is at 1, the M24LR16E-R answers with an
error code.
The Option_flag is supported, the Inventory_flag is not supported.
During the RF write cycle W
otherwise, the M24LR16E-R may not program correctly the data into the Configuration byte.
The W
Table 106. WriteEHCfg request format
1. Gray means that the field is optional.
Request parameters:
●
●
●
Table 107. WriteEHCfg response format when Error_flag is NOT set
Response parameter:
●
Table 108. WriteEHCfg response format when Error_flag is set
Response parameter:
●
Request
Response SOF
Response
SOF
SOF
Request flags
UID (optional)
Data: during WriteEHCfg command, bit 3 of the data is ignored (see
No parameter. The response is send back after the writing cycle.
Error code as Error_flag is set:
–
t
time is equal to t
13h: the specified block was not successfully programmed
Request_
8 bits
flags
Response_
8 bits
flags
Response_flags
WriteEHCfg
8 bits
1nom
A1h
t
, there should be no modulation (neither 100% nor 10%),
+ 18 × 302 µs.
Doc ID 018932 Rev 7
Error code
8 bits
IC Mfg
code
02h
64 bits
CRC16
UID
16 bits
(1)
CRC16
16 bits
8 bits
Data
Command codes
Table
CRC16
Response EOF
16 bits
14).
Response
Request
EOF
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EOF