ATA555812C-DDB Atmel, ATA555812C-DDB Datasheet - Page 30

• Manufacturer Part Number: ATA555812C-DDB
• Description: IC IDIC 1KBIT R/W DIE
• Manufacturer: Atmel

Specifications of ATA555812C-DDB

• Function: Read/Write
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.7
7.8
7.9
30
ResetSelected
ResetToReady
Select
ATA5558
A ResetSelected command will set all currently selected tag(s) back into the ITF mode’s READY
state. The tag(s) answers with a SOF pattern and will be able to participate in future anticollision
sequences.
If either PM or EAS is enabled, this command will not return a selected back into public Mode
Ready State ,i.e., the device will not start to transmit public mode data.
Table 7-13.
Table 7-14.
In ITF mode, a ResetToReady command will set all tags within range of the RF field back into
the Ready state. If either PM or EAS is enabled, the ResetToReady will set the tag back into the
PM Ready state where it will start to transmit PM data. All tags will answer with the SOF pattern.
In READY state they can then participate in future anticollision sequences.
The ResetToReady command reloads the configuration register from system memory block #63.
Table 7-15.
Table 7-16.
When receiving a Select command, the addressed tag responds with the 16 bit CRC of the Tag
ID and immediately enters the Selected state.
After selection, the interrogator may communicate with the selected tag using any valid Read,
Write or Login commands. If the interrogator sends a new GetID or Select (another tag) com-
mand, the currently selected tag enters the Quiet state automatically.
Command
ResetSelected = 00 11 10 00 00
10 bits
SOF
Start of Frame
3 .. 10 bit-period
Command
ResetToReady = 00 11 00 00 00
10 bits
SOF
Start of Frame
3 .. 10-bit period
Interrogator Command
Tag Response
Interrogator Command
Tag response
4681E–RFID–11/09