ATA559001-DDT Atmel, ATA559001-DDT Datasheet - Page 56

• Manufacturer Part Number: ATA559001-DDT
• Description: RF Wireless Misc UHF (1kbit r/w anti-collision)
• Manufacturer: Atmel

8.2.1.1
8.2.1.2
56
ATA5590
Group-selection Commands
Deterministic Full Duplex Anticollision Commands
Table 8-1.
Group-selection commands can address the whole memory. The start address of the page is
only fixed by using Group_afi or Group_ID commands.
The end address is under the control of the reader, because all group-selection commands sup-
port an auto-decrement function of the address. This enables arbitration even outside the start
page.
Table 8-2.
Note:
Anticollision commands can address the whole memory. The Anticollision_ID commands are
used to fix the start address of the page.
The end address is under control of the reader, because all anticollision commands support an
auto-decrement function of the address. This enables arbitration even outside of the start page.
Com(7:2)
Com(7:2)
000001
000011
010010
010110
010111
001010
If there is a need in the application to use such commands several times, there is the possibility of
shortening the whole procedure by using the short temporary command repeat_arb
Command Codes for IC Control Command
Command Codes for Group-selection Commands
Inclusive CRC
Inclusive CRC
8-bit Value,
8-bit Value,
(hex)
(hex)
5B
5C
06
0F
49
2B
Command
Group_AFI
Group_ID
Group_pointer
Group_pointer_leeq
Group_pointer_greq
Command
Reset
Comment
Reset of the control logic and/or reset of
status1 register contents
No answer is backscattered if the whole circuit
is reset
Comment
Based on the AFI byte of the
Tag_ID page
Affects pre_select
Forward data
Affects pre_select
Forward data EEPROM data
Affects pre_select
Affects pre_select
Affects pre_select
EEPROM data
4817C–RFID–03/07