m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 105

• 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
26.16
Response parameter:
●
Table 83.
Response parameter:
●
Figure 68. Lock-sector frame exchange between VCD and M24LR16E-R
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the Lock-sector 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
duration of the internal write cycle (from the end of a valid Lock sector command to the
beginning of the M24LR16E-R response).
Present-sector Password
On receiving the Present-sector Password command, the M24LR16E-R compares the
requested password with the data contained in the request and reports whether the
operation has been successful in the response. The Option_flag is supported.
During the comparison cycle equal to W
10%), otherwise, the M24LR16E-R the Password value may not be correctly compared. The
W
After a successful command, the access to all the memory blocks linked to the password is
changed as described in
Response
M24LR16E-R
M24LR16E-R
t
time is equal to t
SOF
No parameter
Error code as Error_flag is set:
–
–
–
VCD
10h: the specified block is not available
11h: the specified block is already locked and thus cannot be locked again
14h: the specified block was not successfully locked
Lock-sector response format when Error_flag is set
Response_
SOF
flags
8 bits
1nom
Lock-sector
request
+ 18 × 302 µs.
Section 4.1: M24LR16E-R block security in RF
Doc ID 018932 Rev 7
Error code
8 bits
EOF
t
<--------------- W
<-t
, there should be no modulation (neither 100% nor
1
-> SOF
Lock-sector
t
response
-----------> SOF
CRC16
16 bits
EOF
Lock-sector
response
mode.
Command codes
Lock sequence
when error
Response
EOF
EOF
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