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M24LR64E-R 数据表(PDF) 107 Page - STMicroelectronics

部件名 M24LR64E-R
功能描述  64-Kbit EEPROM with password protection, dual interface & energy harvesting: 400 kHz I²C bus & ISO 15693 RF protocol at 13.56 MHz
PDF  140 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR64E-R 数据表(HTML) 107 Page - STMicroelectronics

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M24LR64E-R
Command codes
Doc ID 022712 Rev 3
107/140
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the Fast Read Single block command to the end of the M24LR64E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin remains in high-Z
state.
26.18
Fast Inventory Initiated
Before receiving the Fast Inventory Initiated command, the M24LR64E-R must have
received an Initiate or a Fast Initiate command in order to set the Initiate_ flag. If not, the
M24LR64E-R does not answer the Fast Inventory Initiated command.
The subcarrier_flag should be set to 0, otherwise the M24LR64E-R answers with an error
code.
On receiving the Fast Inventory Initiated request, the M24LR64E-R runs the anticollision
sequence. The Inventory_flag must be set to 1. The meaning of flags 5 to 8 is shown in
Table 29. The data rate of the response is multiplied by 2.
The request contains:
●
the flags,
●
the Inventory command code,
●
the AFI if the AFI flag is set,
●
the mask length,
●
the mask value,
●
the CRC.
The M24LR64E-R does not generate any answer in case of error.
The Response contains:
●
the flags,
●
the Unique ID.
Table 91.
Fast Inventory Initiated request format
Request
SOF
Request
_flags
Fast
Inventory
Initiated
IC Mfg
code
Optional
AFI
Mask
length
Mask value
CRC16
Request
EOF
8 bits
C1h
02h
8 bits
8 bits
0 - 64 bits
16 bits
Table 92.
Fast Inventory Initiated response format
Response
SOF
Response
_flags
DSFID
UID
CRC16
Response
EOF
8 bits
8 bits
64 bits
16 bits



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