LRI2K datasheet(58/89 Pages) STMICROELECTRONICS

부품명	LRI2K

상세설명	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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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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58 / 89 page

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

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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