ATA559001-DBW Atmel, ATA559001-DBW Datasheet - Page 72
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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10.3
10.3.1
72
Read Commands
ATA5590
Read32 and Read32c
The read32 command reads a block (32 bits) of the memory. Read32c reads a block of the con-
trol memory. Short, long, and symbolic addressing modes are supported. After receiving the
header, the command, the parameters, and, optionally, the address field (long addressing
mode), the tag expects the CRC stream (inverted CRC), and then two EOF symbols.
After getting the two EOF symbols, the tag expects the return header. When this is received, the
tag returns the status2 register, and the 32-bit + 16-bit CRC data.
After transmitting the last bit, the tag expects two EOF symbols. If it does not receive them, it
assumes that the reader is transmitting a new header, and the tag enters loop status.
The command byte is:
The above values include the 2-bit CRC value.
Table 10-2.
Table 10-3.
When using long addressing modes, the page or symbolic page address is stored at
address(2:0). To avoid future incompatibility, the other bits in the address field should be set to
“0”.
Short Read
User Memory
Short Read
Control Memory
Long Read
User Memory
Long Read
Control Memory
• 13h (read32) or
• 91h (read32c)
Index
7:6
5:3
2:1
0
Construction of the Forward Link for Read32 Commands
Parameter Field of the Read Commands
Header
Header
Header
Header
Function
Addressing mode
- 3-bit short address (short addressing modes), or
- 2-bit (4:3) block address (long addressing mode); index(5) must be “0”
Return link modulation
Select
Command
Command
Command
Command
Parameter
Parameter
Parameter
Parameter
CRC
CRC
Address
Address
EOT
EOT
CRC
CRC
4817C–RFID–03/07
EOT
EOT
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