ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 22
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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4.5
22
Default Frames of the Forward Link Stream
ATA5590
The basic protocol contains the following elements:
Figure 4-4.
Note:
• A forward header to define the boundaries of the data encoding transmitted by the reader.
• A data frame containing the command and its CRC, data setting parameters, address
• A 16-bit CRC frame if a long command was transmitted. In the case of deterministic
• An EOT frame which is based on 2 EOF (end of file) symbols.
information, and data for programming. The encoding of the data frame is based on the
boundary setting made during the header.
anticollision commands, the 16-bit CRC field is not part of the forward link because the CRC
result is the start value for the CRC of the return link.
– Short commands are based only on the 6-bit command code and its 2-bit CRC.
– Temporary commands are short commands which are not stored in an on-chip
– Long commands consist, at least, of the command frame, its CRC, and the
command register. They are only used to repeat the former command if possible.
parameter field.
The speed of the deterministic anticollision procedure can be increased by combining the long
commands with the short repeat_arb command.
Short commands
Long commands (deterministic anticollision)
Long commands (read and program)
Header
Header
Header
Header
Header
Header
Header
Default Forward Frames
Command
Command
Command
Command
Command
Command
Command
6 bits
2 bits
CRC
CRC
CRC
CRC
CRC
CRC
CRC
EOT
Parameter and address
Parameter and programming data
Parameter
Parameter
Parameter, address and programming data
8 bits
8 bits
16 bits
Parameter
16 bits
40 bits
16 bits
EOT
CRC
48 bits
EOT
CRC
EOT
EOT
CRC
EOT
CRC
4817C–RFID–03/07
EOT
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