參數(shù)資料
型號(hào)： EM4223V2WS11
廠商： EM Microelectronic
英文描述： Read-only UHF Radio Frequency Identification Device
中文描述： 只讀超高頻射頻識(shí)別設(shè)備
文件頁(yè)數(shù)： 19/29頁(yè)
文件大?。?/td> 437K
代理商： EM4223V2WS11
R
EM4223
Return link preamble
The
FM0
return link preamble has the bit pattern described in
Error! Reference source not found.
Copyright
2005, EM Microelectronic-Marin SA
19
www.emmicroelectronic.com
1
2
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16
Tag bit periods
Preamble waveform
'
1' is tag reflecting, '0' is tag not reflecting
Fig. 15 - FM0 Return link preamble
Cyclic Redundancy Check (CRC)
The 16 bit CRC is calculated on all data bits up to, but
not including, the first CRC bit.
The polynomial used to calculate the CRC is x^16 + x^12
+ x^5 + 1.
The 16-bit register is preloaded with 'FFFF’. The resulting
CRC value is inverted, attached to the end of the packet
and transmitted.
The most significant byte shall be transmitted first. The
most significant bit of each byte shall be transmitted first.
MSByte
LSByte
MSB LSB
CRC 16 (8 bits)
↑
first transmitted bit of the CRC
MSB LSB
CRC 16 (8 bits)
Fig. 16- CRC format
7. MEMORY ORGANISATION AND CONFIGURATION INFORMATION
Memory Map
The physical memory comprises 128 bits of user
memory, 8 bits AFI and 3 personality bits. In addition, the
IC Manufacturer Code as specified in ISO7816-6/AM1 is
hard-wired into the Transponder.
Fig. 17- Memory map
Unambiguous User Data (UUD) & SUID
The user memory on the Transponder comprises 128
bits of user specified data. This data is known as
Unambiguous User Data UUD, because it is expected
that this data be unique and unambiguous. The UUD is a
license plate defined by the user and may be an EPC,
GTAG or other user defined number.
The Transponder will return a Sub-UID (SUID) as defined
in ISO 18000-6 when the SUID flag is =1 in the
arbitration initiation commands. The SUID in this
Transponder is derived from the least significant 32 bits
of the UUD as described below. The SUID consists of 40
bits: the 8 bit manufacturer code followed by the least
significant 32 bits of the UUD
.
128 bits UUD memory
8 bit AFI
3 bits Personality
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM4223V2WS11E 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read-only UHF Radio Frequency Identification Device
EM4223V2WS7 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read-only UHF Radio Frequency Identification Device
EM4223V2WS7E 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read-only UHF Radio Frequency Identification Device
EM4223V2WW11 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read-only UHF Radio Frequency Identification Device
EM4223V2WW11E 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read-only UHF Radio Frequency Identification Device
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