參數(shù)資料
型號: LRI512
廠商: 意法半導體
英文描述: Memory TAG IC 512 bit High Endurance EEPROM 13.56MHz, ISO 15693 Standard Compliant with E.A.S.
中文描述: 內(nèi)存標簽集成電路的512位高耐力的EEPROM 13.56,ISO 15693標準符合標準的防盜
文件頁數(shù): 23/54頁
文件大?。?/td> 351K
代理商: LRI512
23/54
LRI512
Figure 31. Principle of Comparison between the Mask, Slot Number and UID
The AFI field shall be present if the AFI_flag is set.
The pulse shall be generated according to the def-
inition 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 LRI512 answer is detected, the VCD may
switch to the next slot by sending an EOF
– if one or more LRI512 answers are detected, the
VCD shall wait 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 1111b16 bits
The Mask value less the padding 0s is loaded
into the Tag comparator
100 1100 1111b11 bits
The Slot counter is calculated
Nb_slots_flags = 0 (16 slots), Slot Counter is 4 bits
xxxx
The Slot counter is concatened to the Mask value
Nb_slots_flags = 0
xxxx 100 1100 1111b
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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