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LRI2K Folha de dados(PDF) 52 Page - STMicroelectronics

Nome de Peças LRI2K
Descrição Electrónicos  2048-bit EEPROM tag IC at 13.56 MHz, with 64-bit UID and kill code, ISO 15693 and ISO 18000-3 Mode 1 compliant
PDF  89 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRI2K Folha de dados(HTML) 52 Page - STMicroelectronics

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Commands codes
LRI2K
52/89
20.5
Lock Block
On receiving the Lock Block command, the LRI2K permanently locks the selected block.
The Option_flag is supported.
During the write cycle tW, there should be no modulation (neither 100% nor 10%).
Otherwise, the LRI2K may not lock correctly the memory block. The tW time is equal to t1nom
+ 18 × 302µs.
Request parameters:
●
(Optional) UID
●
Block number
Response parameter:
●
No parameter.
Response parameter:
●
Error code as Error_flag is set:
–
10h: block address not available
–
11h: block is locked
–
14h: block not locked
Table 31.
Lock Single Block request format
Request
SOF
Request_
flags
Lock Block
UID
Block
number
CRC16
Request
EOF
8 bits
22h
64 bits
8 bits
16 bits
Table 32.
Lock Block response format when Error_flag is NOT set
Response SOF
Response_flags
CRC16
Response EOF
8 bits
16 bits
Table 33.
Lock Block response format when Error_flag is set
Response
SOF
Response_flags
Error code
CRC16
Response
EOF
8 bits
8 bits
16 bits
Figure 44.
Lock Block frame exchange between VCD and LRI2K
VCD
SOF
Lock Block
request
EOF
LRI2K
<-t1->
SOF
Lock Block
response
EOF
Lock sequence when
error
LRI2K
<------------ tW ------------><- t1 -> SOF
Lock Block
response
EOF



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