ATA559001-6DSY Atmel, ATA559001-6DSY Datasheet - Page 51

• 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

Figure 7-2.
4817C–RFID–03/07
(15)
Schematic of the 16-bit CRC Register
(14)
(13)
Comments:
(12)
x
1
16
Note:
x
The generator polynomial is 17-bit-value
The crc-result is 16-bit value
The reset value of a CRC register is FFFF
15
0
Generator polynomial (CRC-CCITT) = > x
x
0
14
As mentioned earlier, ATA5590 supports adaptive CRC frame constructions for the 16-bit CRC
frame; the reader is able to change the length to a minimum value of 1 bit or it can increase the
length. In such cases, the tag backscatters the CRC to the reader in a loop mode. The reader can
then decide the length.
(11)
x
0
13
(10)
x
1
12
crc_data (vector 15 to 0)
x
0
11
(9)
x
0
10
(8)
x
0
9
(7)
x
0
8
(6)
x
0
7
x
(5)
0
6
H
x
1
16
5
+ x
x
0
4
12
+ x
x
0
(4)
3
5
+ 1
x
0
2
(3)
x
0
1
(2)
x
1
0
(1)
(0)
serial send data
ATA5590
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