lri2k STMicroelectronics, lri2k Datasheet - Page 52

• 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
20.5
52/89
Lock Block
On receiving the Lock Block command, the LRI2K permanently locks the selected block.
The Option_Flag is supported.
During the write cycle t
Otherwise, the LRI2K may not lock correctly the memory block. The t
+ 18 × 302µs.
Table 31.
Request parameters:
Table 32.
Response parameter:
Table 33.
Response parameter:
Figure 44. Lock Block frame exchange between VCD and LRI2K
Request
Response
LRI2K
LRI2K
SOF
VCD
Response SOF
SOF
(Optional) UID
Block Number
No parameter.
Error code as Error_Flag is set:
–
–
–
10h: block address not available
11h: block is locked
14h: block not locked
Request_
SOF
Lock Single Block request format
Flags
Lock Block response format when Error_Flag is NOT set
Lock Block response format when Error_Flag is set
Response_Flags
8 bits
Lock Block
8 bits
request
Lock Block
Response_Flags
W
, there should be no modulation (neither 100% nor 10%).
22h
8 bits
EOF
Error code
<------------ t
<-t
8 bits
1
->
64 bits
SOF
UID
W
------------><- t
Lock Block
CRC16
16 bits
response
number
Block
8 bits
1
CRC16
16 bits
-> SOF
EOF
W
time is equal to t
CRC16
16 bits
Lock sequence when
Lock Block
response
Response EOF
error
Response
Request
EOF
EOF
EOF
LRI2K
1nom