lri2k STMicroelectronics, lri2k Datasheet - Page 51

• 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

LRI2K
20.4
Figure 43. Write Single Block frame exchange between VCD and LRI2K
LRI2K
LRI2K
VCD
SOF
Write Single Block
On receiving the Write Single Block Command, the LRI2K writes the data contained in the
request to the requested block and reports whether the write operation was successful in
the response. The Option_Flag is supported.
During the write cycle t
Otherwise, the LRI2K may not program correctly the data into the memory. The t
equal to t
Table 28.
Request parameters:
Table 29.
Response parameter:
Table 30.
Response parameter:
Request
Response SOF
SOF
Response SOF
UID (Optional)
Block Number
Data
No parameter. The response is sent back after the write cycle.
Error code as Error_Flag is set:
–
–
–
Block request
Write Single
1nom
10h: block address not available
12h: block is locked
13h: block not programmed
Request_
Flags
8 bits
Write Single Block request format
Write Single Block response format when Error_Flag is NOT set
Write Single Block response format when Error_Flag is set
+ 18 × 302µs.
Response_Flags
EOF
Single
Block
Response_Flags
Write
W
21h
, there should be no modulation (neither 100% nor 10%).
8 bits
<-t
8 bits
<------------ t
1
->
SOF
64 bits
UID
W
------------><- t
Error code
Block response
8 bits
Write Single
number
Block
CRC16
8 bits
16 bits
1
->
EOF
SOF
CRC16
16 bits
32 bits
Data
Write sequence when error
Block response
Write Single
Commands codes
Response EOF
CRC16
16 bits
Response EOF
W
EOF
time is
Request
EOF
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