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M24LR16E-R 数据表(PDF) 118 Page - STMicroelectronics

部件名 M24LR16E-R
功能描述  16-bit EEPROM with password protection, dual interface & energy harvesting: 400 kHz I²C bus & ISO 15693 RF protocol at 13.56 MHz
PDF  143 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR16E-R 数据表(HTML) 118 Page - STMicroelectronics

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Command codes
M24LR16E-R
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Doc ID 018932 Rev 8
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the WriteEHCfg command to the end of the M24LR16E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin is tied to 0 for the
entire duration of the internal write cycle (from the end of a valid WriteEHCfg command to
the beginning of the M24LR16E-R response).
26.25
WriteDOCfg
On receiving the WriteDOCfg 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 Wt, there should be no modulation (neither 100% nor 10%),
otherwise, the M24LR16E-R may not program correctly the data into the Configuration byte.
The Wt time is equal to t1nom + 18 × 302 µs.
Request parameters:
●
Request flag
●
UID (optional)
●
Data: during a WriteDOCfg command, bits 2 to 0 of the data are ignored (see
Table 14).
Figure 75.
WriteEHCfg frame exchange between VCD and M24LR16E-R
VCD
SOF
WriteEHCfg
request
EOF
M24LR16E-
R
<-t1-> SOF
WriteEHCfg
response
EOF
WriteEHCfg sequence
when error
M24LR16E-
R
<------------------- Wt ---------------> SOF
WriteEHCfg
response
EOF
Table 109.
WriteDOCfg request format
Request
SOF
Request_
flags
WriteDOCfg
IC Mfg
code
UID(1)
1.
Gray means that the field is optional.
Data
CRC16
Request
EOF
8 bits
A4h
02h
64 bits
8 bits
16 bits



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