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LRI2K Datasheet(PDF) 58 Page - STMicroelectronics

No. de pieza LRI2K
Descripción 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 Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRI2K Datasheet(HTML) 58 Page - STMicroelectronics

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Commands codes
LRI2K
58/89
20.10
Lock AFI
On receiving the Lock AFI request, the LRI2K locks the AFI value permanently. 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 AFI value in memory. The tW time is equal
to t1nom + 18 × 302 µs.
Request parameter:
●
UID (Optional)
Response parameter:
●
No parameter.
Response parameter:
●
Error code as Error_flag is set:
–
11h: block is locked
–
14h: block not locked
Table 47.
Lock AFI request format
Request SOF
Request_
flags
Lock AFI
UID
CRC16
Request EOF
8 bits
28h
64 bits
16 bits
Table 48.
Lock AFI response format when Error_flag is NOT set
Response SOF
Response_flags
CRC16
Response EOF
8 bits
16 bits
Table 49.
Lock AFI response format when Error_flag is set
Response SOF
Response_flags
Error code
CRC16
Response EOF
8 bits
8 bits
16 bits
Figure 49.
Lock AFI frame exchange between VCD and LRI2K
VCD
SOF
Lock AFI
request
EOF
LRI2K
<-t1-> SOF
Lock AFI
response
EOF
Lock sequence when
error
LRI2K
<------------ tW ------------><- t1 -> SOF
Lock AFI
response
EOF



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