ATA559001-6DSY Atmel, ATA559001-6DSY Datasheet - Page 61

• 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

8.5
4817C–RFID–03/07
Overview of Addressing Modes
Figure 8-4.
The physical address of a memory cell is given by a block address and a bit address. The phys-
ical block address itself is generated out of the transmitted page address plus a 2-bit coded
block address which together address only a block of a page. Additionally, the information about
user or system memory influences the physical addressing.
To address the whole memory, 6 address bits are needed to address the physical block. Bits 1:0
represent the block address. The block address (4:2) is given by the page information, and block
address (5) is given by the user/system memory information.
Group_ID, group_afi, anticollision_ID: No additional addressing information is needed, because
the address is encoded in the command itself.
Table 8-12.
Note:
Parameter(7:6)
11 symbolic long
10 symbolic short
01 physical short
00 physical long
Symbolic addresses currently address only the control memory.
If command is known but address not supported
If command_crc is ok and command unknown
Error Signalling if the Command is Unknown (but CRC is Correct) or the Address
is Unknown
Address Coding for read32, read32c, read128, read128c, prog4byte, prog4bytec
Commands
EOF1
Page Address
Address(2:0)
Parameter(5:3)
Parameter(5:3)
Address(2:0)
Forward
EOF2
Block Address
Parameter(4:3)
11
11
Parameter(4:3)
Return header
Comment
Only the MSBlock is addressed
Only the MSBlock is addressed
Notch
Level2send
3phase1
3phase and
3phase and
signalling
signalling
ATA5590
error
error
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