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M24LR64-R-DW6T/2 数据表(PDF) 68 Page - STMicroelectronics

部件名 M24LR64-R-DW6T/2
功能描述  64 Kbit EEPROM with password protection & dual interface: 400kHz I짼C serial bus & ISO 18000-3 mode 1 RF protocol at 13.56MHz
PDF  126 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR64-R-DW6T/2 数据表(HTML) 68 Page - STMicroelectronics

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Request processing by the M24LR64-R
M24LR64-R
68/126
Doc ID 15170 Rev 8
22
Request processing by the M24LR64-R
Upon reception of a valid request, the M24LR64-R 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
endif



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