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LRIS64K 데이터시트(PDF) 48 Page - STMicroelectronics

부품명 LRIS64K
상세설명  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
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LRIS64K 데이터시트(HTML) 48 Page - STMicroelectronics

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LRIS64K
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Doc ID 15336 Rev 11
Figure 39.
Principle of comparison between the mask, the slot number and the UID
The AFI field is present if the AFI_flag is set.
The pulse is generated according to the definition of the EOF in ISO/IEC 15693-2.
The first slot starts immediately after the reception of the request EOF. To switch to the next
slot, the VCD sends an EOF.
The following rules and restrictions apply:
●
if no LRIS64K answer is detected, the VCD may switch to the next slot by sending an
EOF,
●
if one or more LRIS64K answers are detected, the VCD waits until the complete frame
has been received before sending an EOF for switching to the next slot.
AI06682
Mask value received in the Inventory command
0000 0100 1100 1111 b 16 bits
The Mask value less the padding 0s is loaded
into the Tag comparator
100 1100 1111 b 11 bits
The Slot counter is calculated
xxxx
Nb_slots_flags = 0 (16 slots), Slot Counter is 4 bits
The Slot counter is concatened to the Mask value
xxxx 100 1100 1111 b
Nb_slots_flags = 0
15 bits
The concatenated result is compared with
the least significant bits of the Tag UID.
xxxx xxxx ..... xxxx xxxx x xxx xxxx xxxx xxxx
64 bits
LSB
MSB
b
LSB
MSB
LSB
MSB
LSB
MSB
b0
b63
Compare
Bits ignored
UID
4 bits



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