ATA559001-6DSY Atmel, ATA559001-6DSY Datasheet - Page 86

• 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

13.5.3
13.5.4
13.5.5
13.5.6
13.5.7
13.6
13.6.1
13.6.2
86
Set and Reset Conditions of the Internal Flag Arbitration Lost
ATA5590
Reset Condition of Pre_select
Set Condition of ID
Reset Condition of ID
Set Condition of ID_s During Deterministic Anticollision Procedure
Reset Condition of ID_s
Set Conditions of the Arb_lost_data Flag
Set Conditions of the Arb_lost_CRC Flag
Note:
Reset command and the ID_s flag inside the parameter field was set (new relative to Palomar)
Each communication between tag and reader is influenced by the arbitration lost flag. As long as
this flag is set, the tag does not backscatter any information to the reader. In fact, arbitration lost
consists of two flags:
If the arb_lost_data flag is set to “1”, it can influence the pre_select, ID, or ID_s flags. If the
arb_lost_CRC flag is set to “1”, the reader has indicated that the current anticollision or
group-selection command has no influence on the status2 register.
During arbitration, if the tag has gotten acknowledgement from the reader that the reader wants
to continue with another priority, this flag is set to “1”.
Synchronous deterministic arbitration is followed by a CRC field. If the tag has detected an error
(wrong CRC transmitted by the reader, or the reader has sent a “1” to the tag), then this flag is
set to “1”.
• If the pre_select flag was not set, and a power-on reset has occurred (reload function after
• If a group command was in use, and the tag did not win the arbitration (new relative to
• Reset command and the pre_select flag inside the parameter field was set (new relative to
• If the ID flag was set, and a power-on reset has occurred (reload function after POR)
• If an anticollision command was in use, and the tag won the arbitration
• If the ID flag was not set, and a power-on reset has occurred (reload function after POR)
• Reset command and the ID flag inside the parameter field was set (new relative to Palomar)
• If the group_select command has resulted in a lost arbitration condition
• If the ID_s flag was set, and a power-on reset has occurred (reload function after POR)
• If an anticollision command was transmitted by the reader, and the ID flag was set before.
• If the ID_s flag was not set, and a power-on reset has occurred (reload function after POR)
• The arb_lost_data flag, and
• The arb_lost_CRC flag
POR)
Palomar)
Palomar)
During Aloha-based procedures, the ID_s flag will be also set if the tag was active (slot number
equal to internal random number), and the slot number changes or the slot will be closed.
4817C–RFID–03/07