LRI2K-W4/3GE STMicroelectronics, LRI2K-W4/3GE Datasheet - Page 57

• Manufacturer Part Number: LRI2K-W4/3GE
• Description: IC EEPROM 2048BIT 97PF 8UFDFPN
• Manufacturer: STMicroelectronics

Specifications of LRI2K-W4/3GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO15693, ISO18000-3
• Package / Case: 8-UFDFPN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LRI2K
20.9
Write AFI
On receiving the Write AFI request, the LRI2K writes the AFI byte value into its memory. The
Option_flag is supported.
During the write cycle t
Otherwise, the LRI2K may not write correctly the AFI value into the memory. The t
equal to t
Table 44.
Request parameters:
●
●
Table 45.
Response parameter:
●
Table 46.
Response parameter:
●
Figure 48. Write AFI frame exchange between VCD and LRI2K
Request
Response SOF
Response SOF
LRI2
LRI2
SOF
VCD
K
K
UID (Optional)
AFI
No parameter.
Error code as Error_flag is set:
–
–
1nom
12h: block is locked
13h: block not programmed
Request
SOF
_flags
8 bits
Write AFI request format
Write AFI response format when Error_flag is NOT set
Write AFI response format when Error_flag is set
+ 18 × 302µs.
Write AFI
request
Response_flags
Write AFI
Response_flags
W
27h
, there should be no modulation (neither 100% nor 10%).
8 bits
8 bits
EOF
<------------ t
<-t
1
->
64 bits
Error code
UID
8 bits
SOF
W
------------><- t
Write AFI
response
CRC16
16 bits
8 bits
AFI
1
-> SOF
CRC16
16 bits
EOF
CRC16
16 bits
Write sequence when
Commands codes
Write AFI
response
Response EOF
Response EOF
error
W
Request
EOF
EOF
time is
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