XRAG2 memory mapping

XRAG2

10/33

Figure 5.

Three memory bank organization (EPC_length

1.

See Table 2 and Table 3 for description of EPC and ISO TID coding.

2.1

Tag identification (TID) structure

The 64-bit TID memory content is written by STMicroelectronics according to the ISO 15963

Technical Report in order to follow the ISO 18000 standard recommendations. XRAG2 can

be delivered with either ISO TID or EPC TID. Table 2 and Table 3 show the TID structure in

each case.

EPC bank

Reserved bank

TID[47:32]

TID[15:0]

TID[31:16]

30h

20h

10h

00h

3Fh

2Fh

1Fh

0Fh

Kill password [31:16]

Kill password [15:0]

Access password [15:0]

Access password [31:16]

30h

20h

10h

00h

3Fh

2Fh

1Fh

0Fh

EPC[N:N-15]

... up to 256 EPC bits

RFU

EPC [15:0]

120h

110h

...

20h

12Fh

11Fh

...

2Fh

(PC+EPC)length

AFI/NSI

CRC16[15:0]

10h

00h

1Fh

0Fh

Bank 10

Bank 01

Bank 00

64 bits

304 bits

64 bits

ai12310b

...

...

...

...

...

...

Table 2.

Structure of ISO TID

b0 b1b2 b3

b4 b5

b6 b7

b8 b9b10b11 b12 b13 b14 b15

30h

42 bits

3Fh

20h

ST

2Fh

10h

09h

Reserved

1Fh

00h

E0h

02h

0Fh