m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 118
m24lr16e-r
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
Datasheet
1.M24LR16E-R.pdf
(143 pages)
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Command codes
Figure 75. WriteEHCfg frame exchange between VCD and M24LR16E-R
26.25
118/143
M24LR16E-
M24LR16E-
VCD
R
R
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).
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 W
otherwise, the M24LR16E-R may not program correctly the data into the Configuration byte.
The W
Table 109. WriteDOCfg request format
1. Gray means that the field is optional.
Request parameters:
●
●
●
Request
SOF
SOF
Request flag
UID (optional)
Data: during a WriteDOCfg command, bits 2 to 0 of the data are ignored (see
Table
t
time is equal to t
14).
WriteEHCfg
request
Request_
flags
8 bits
1nom
EOF
WriteDOCfg
t
, there should be no modulation (neither 100% nor 10%),
+ 18 × 302 µs.
Doc ID 018932 Rev 7
A4h
<------------------- W
<-t
1
-> SOF
IC Mfg
code
02h
WriteEHCfg
t
response
---------------> SOF
64 bits
UID
(1)
EOF
8 bits
Data
WriteEHCfg sequence
WriteEHCfg
response
CRC16
16 bits
when error
M24LR16E
Request
EOF
EOF
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