ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 68
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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9.4
9.5
9.6
9.7
68
Status Information
Data Field
CRC Field
EOT Frame
ATA5590
The tag transfers the information stored in the status2 register back to the reader using read or
program commands.
The status2 register contains all the mandatory information and error codes which can be read
out by the protocol.
Table 9-2.
A “1” in the bit_length_not_ok flag indicates that each received symbol was longer then the min-
imum length of the bit.
Note:
The data field is backscattered in a loop. The length of the data field is defined by the command.
The CRC field has a length of 16 bits. The equation is the same as in the forward link. The CRC
field is calculated over all data (status and data field), except in the case of anticollision and
group-selection commands.
For wake-up commands, the CRC is not calculated over the slot region.
For anticollision and group-selection commands, the CRC of the return link is based on all data
fields of the forward and return link.
The tag backscatters the inverted value of the CRC register back to the reader.
The length of the CRC field can be adapted by using advanced communication modes.
The EOT frame contains two EOF symbols.
Index
7
6
5
4
3
2
1
0
Data CRC is not supported for short commands. If the command CRC is wrong, the sync condi-
tion will be reset to “0”.
All Commands Except Program
0 (RFU)
ID
Lock protected
1 (RFU)
Bit_length_not_ok
Aloha
(16 bits) Data CRC wrong
0 (RFU)
Contents of the Status2 Register
Program
0 (RFU)
ID
Lock protected
1 (RFU)
Program ok
Aloha
(16 bits) Data CRC wrong
0 (RFU)
4817C–RFID–03/07
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