ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 84

• Manufacturer Part Number: ATA559001-DBW
• Description: RF Wireless Misc UHF (1kbit r/w anti- collis. Ni-Au)
• Manufacturer: Atmel

Specifications of ATA559001-DBW

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

84
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