lri2k STMicroelectronics, lri2k Datasheet - Page 58

• Manufacturer Part Number: lri2k
• Description: 13.56 Mhz, 2048-bit Eeprom Tag Ic With 64-bit Uid And Kill Code, Iso 15693 And Iso 18000-3 Mode 1 Compliant
• Manufacturer: STMicroelectronics

Commands codes
20.10
58/89
Lock AFI
On receiving the Lock AFI request, the LRI2K locks the AFI value permanently. The
Option_Flag is supported.
During the write cycle t
Otherwise, the LRI2K may not Lock correctly the AFI value in memory. The t
to t
Table 47.
Request parameter:
Table 48.
Response parameter:
Table 49.
Response parameter:
Figure 49. Lock AFI frame exchange between VCD and LRI2K
Response SOF Response_Flags
Request SOF
Response SOF
LRI2K
LRI2K
1nom
VCD
UID (Optional)
No parameter.
Error code as Error_Flag is set:
–
–
+ 18 × 302 µs.
11h: block is locked
14h: block not locked
SOF
Lock AFI request format
Lock AFI response format when Error_Flag is NOT set
Lock AFI response format when Error_Flag is set
Request_
Flags
8 bits
Lock AFI
request
Response_Flags
8 bits
W
, there should be no modulation (neither 100% nor 10%).
8 bits
Lock AFI
EOF
28h
<------------ t
<-t
Error code
1
-> SOF
8 bits
W
64 bits
UID
------------><- t
response
Lock AFI
CRC16
16 bits
CRC16
16 bits
1
-> SOF
CRC16
EOF
16 bits
Lock sequence when
response
Lock AFI
Response EOF
Response EOF
W
Request EOF
time is equal
error
EOF
LRI2K