ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 84
ATA559001-DBW
Manufacturer Part Number
ATA559001-DBW
Description
RF Wireless Misc UHF (1kbit r/w anti- collis. Ni-Au)
Manufacturer
Atmel
Datasheet
1.ATA559001-6DSY.pdf
(107 pages)
Specifications of ATA559001-DBW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATA5590
Figure 13-2. Arbitration Flow
The arbitration procedure during anticollision is based on full duplex communication. The tag
shares its internal bit value with the reader. The reader then has several options:
• The reader dictates a select stream. Then in reality, a group-selection mechanism is enabled
• The reader interprets the backscattered signal and decides which priority will go forward.
• The reader analyzes the level of the backscattered signal and the backscattered value. Then
but the pre_select flag is not affected.
Therefore, during arbitration, a change of priority can be realized any time
the reader chooses the tag with the highest level.
< bit(n) > = 1
Set arbitration
lost
no
Backscatter the contents of bit(n)
n = f(command)
modulation free
Arbitration lost
Wait on notch
< bit(n) > = 0
arbitration
Less than
reference
process
EOF
Start
no
no
yes
no
Set arbitration
lost
Modulation off
Out arbitration process
4817C–RFID–03/07
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