LRIS64K datasheet(49/100 Pages) STMICROELECTRONICS

部件名	LRIS64K

功能描述	64 Kbit EEPROM tag IC at 13.56 MHz with 64-bit UID and password based on ISO/IEC 15693 and ISO/IEC 18000-3 Mode 1

PDF	100 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

49 / 100 page

LRIS64K

Request processing by the LRIS64K

Doc ID 15336 Rev 11

49/100

Request processing by the LRIS64K

Upon reception of a valid request, the LRIS64K performs the following algorithm:

●

NbS is the total number of slots (1 or 16)

●

SN is the current slot number (0 to 15)

●

LSB (value, n) function returns the n Less Significant Bits of value

●

MSB (value, n) function returns the n Most Significant Bits of value

●

“&” is the concatenation operator

●

Slot_Frame is either an SOF or an EOF

SN = 0

if (Nb_slots_flag)

then NbS = 1

SN_length = 0

endif

else NbS = 16

SN_length = 4

endif

label1:

if LSB(UID, SN_length + Mask_length) =

LSB(SN,SN_length)&LSB(Mask,Mask_length)

then answer to inventory request

endif

wait (Slot_Frame)

if Slot_Frame = SOF

then Stop Anticollision

decode/process request

exit

endif

if Slot_Frame = EOF

if SN < NbS-1

then SN = SN + 1

goto label1

exit

endif

LRIS64K 数据表(PDF) 49 Page - STMicroelectronics

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