ATA559001-6DSY Atmel, ATA559001-6DSY Datasheet - Page 21

• Manufacturer Part Number: ATA559001-6DSY
• Description: RF Wireless Misc UHF (1k bit r/w anti-collision)
• Manufacturer: Atmel

Specifications of ATA559001-6DSY

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

4817C–RFID–03/07
Figure 4-2.
During the data section of the forward stream, the tag backscatters the decoded value of the
received data back to the reader.
This enables the reader to control the quality of the link. It also enables the reader to check if the
tag has received the right message. If the reader detects an error, it stops the transmission
directly by sending the stop code or by remaining silent for a specific time (programmable watch-
dog). Then the tag becomes asynchronous to the link, and the reader can tune the link by tuning
the transport parameters via the header section of the forward link.
Figure 4-3.
During the deterministic anticollision procedure, full duplex communication is used.
Reader RX channel
Reader to tag
Tag receiver
Reader RX
backscatter
backscatter
channel
active
Reader to tag
Tag receiver
Tag
Tag
backscatter
Default Full Duplex Communication Principle
Communication During Deterministic Arbitration
active
Tag
Parameters
Parameters
Header
Parameters
Header
Listen
Listen
Data
Data
Data
Data
Data
"11"
"11"
EOT
EOT
"11"
Listen
Listen
Header
Header
Full duplex
Header
Listen and arbitration
Loop
Data
Arbitration lost
Listen
Data
Clock tick transport
Data
Arbitration won
Mute
ATA5590
EOT
EOT
"11"
21