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LRIS64K Datasheet(PDF) 79 Page - STMicroelectronics

Part # LRIS64K
Description  64 Kbit EEPROM tag IC at 13.56 MHz with 64-bit UID and password based on ISO/IEC 15693 and ISO/IEC 18000-3 Mode 1
PDF  100 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRIS64K Datasheet(HTML) 79 Page - STMicroelectronics

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LRIS64K
Commands codes
Doc ID 15336 Rev 11
79/100
24.15
Lock-sector Password
On receiving the Lock-sector Password command, the LRIS64K sets the access rights and
permanently locks the selected sector. The Option_flag is supported.
A sector is selected by giving the address of one of its blocks in the Lock-sector Password
request (Sector number field). For example, addresses 0 to 31 are used to select sector 0
and addresses 32 to 63 are used to select sector 1. Care must be taken when issuing the
Lock-sector Password command as all the blocks belonging to the same sector are
automatically locked by a single command.
The Protocol_extention_flag should be set to 1 for the LRIS64K to operate correctly. If the
Protocol_extention_flag is at 0, the LRIS64K answers with an error code.
During write cycle Wt, there should be no modulation (neither 100% nor 10%) otherwise, the
LRIS64K may not correctly lock the memory block.
The Wt time is equal to t1nom + 18 × 302 µs.
Request parameters:
●
(optional) UID
●
Sector number
●
Sector security status (refer to Table 71)
Response parameter:
●
No parameter.
Table 70.
Lock-sector Password request format
Request
SOF
Request
_flags
Lock-
sector
Password
IC
Mfg
code
UID(1)
1.
Gray means that the field is optional.
Sector
number
Sector
security
status
CRC16
Request
EOF
8 bits
B2h
02h
64 bits
16 bits
8 bits
16 bits
Table 71.
Sector security status
b7
b6
b5
b4
b3
b2
b1
b0
0
0
0
password control bits
Read / Write protection
bits
1
Table 72.
Lock-sector Password response format when Error_flag is NOT set
Response
SOF
Response_flags
CRC16
Response
EOF
8 bits
16 bits
Table 73.
Lock-sector Password response format when Error_flag is set
Response
SOF
Response_
flags
Error code
CRC16
Response
EOF
8 bits
8 bits
16 bits



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