ATA559001-6DSY Atmel, ATA559001-6DSY Datasheet - Page 37

• 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 4-17. Arbitration Process
The pre_select flag of status1 can be set and reset by group-selection commands. Therefore, it
is possible to select a group or a single tag with these command types. ATA5590 offers full
duplex operation during group-selection commands.
The pre_select flag can also be reset by the reset command.
ATA5590 supports several kinds of group-selection commands addressing the ID or the AFI and
DSFID mechanism. Additionally, a pointer-based group-selection mechanism is supported.
Decisions can be made based on =, , and comparisons.
After a group or a single tag is selected, the reader is immediately free to communicate with the
tag(s).
New anticollision
Set ID_s to "1"
New group select
command
Isolated
Action
Start selection
process
CRC ok
Return link header
New selection
Ready
command
Check
CRC
Arbitration
Reference
won
Store
command type
Other
Mute
Receive bit
Start arbitration field
= EEPROM bit
Arbitration lost
Forward bit/
or arbitration lost
Wait on EOF
ATA5590
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