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M24LR04E-R 数据表(PDF) 115 Page - STMicroelectronics

部件名 M24LR04E-R
功能描述  4-Kbit EEPROM with password protection, dual interface & energy harvesting: 400 kHz I²C bus & ISO 15693 RF protocol at 13.56 MHz
PDF  142 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR04E-R 数据表(HTML) 115 Page - STMicroelectronics

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M24LR04E-R
Command codes
Doc ID 022208 Rev 5
115/142
26.23
ReadCfg
On receiving the ReadCfg command, the M24LR04E-R reads the Configuration byte and
sends back its 8-bit value in the response.
The Protocol_extension_flag should be set to 0 for the M24LR04E-R to operate correctly. If
the Protocol_extension_flag is at 1, the M24LR04E-R answers with an error code. The
Option_flag is not supported. The Inventory_flag must be set to 0.
Request parameters:
●
UID (optional)
Response parameters:
●
One byte of data: Configuration byte
Response parameter:
●
Error code as Error_flag is set
–
03h: the option is not supported
–
0Fh: error with no information given
Figure 74.
ReadCfg frame exchange between VCD and M24LR04E-R
Table 102.
ReadCfg request format
Request
SOF
Request_
flags
ReadCfg
IC Mfg code
UID(1)
1.
Gray means that the field is optional.
CRC16
Request
EOF
8 bits
A0h
02h
64 bits
16 bits
Table 103.
ReadCfg response format when Error_flag is NOT set
Response SOF
Response_flags
Data
CRC16
Response
EOF
8 bits
8 bits
16 bits
Table 104.
ReadCfg response format when Error_flag is set
Response
SOF
Response_
flags
Error code
CRC16
Response
EOF
8 bits
8 bits
16 bits
VCD
SOF
ReadCfg request
EOF
M24LR04E-R
<-t1-> SOF ReadCfg response EOF



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