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Memory Map of Tag
2. System area of I.CODE2 chip
2-14
This section describes a system area of I.CODE2 chip. The system area of
I-CODE2 is allocated in the other area rather than user memory area.
Execute a specific command to access to the system area.
Byte0
Byte1
UID
UID
EAS/AFI/DSFID
Write-protected
(1) UID
UID is a Tag-specific code and has been written into the memory during the
chip production process.
The IC is shipped with this page write-access inhibited; there is no way of
making this page rewritable by the user.
(2) EAS/AFI/DSFID
EAS mode: Inhibition/permission of EAS function
(e=0: EAS mode is disable; e=1: EAS mode is enable)
Byte１
The pages marked with "X" in the table above are reserved for future use.
(3) AFI
AFI is special area for enabling the user to identify a Tag that is suitable for a
specific user application.
Byte２
AFI
AFI
higher-order
lower-order
4 bits
4 bits
0
0
X
0
X
Y
0
Y
1
0,Y
2
0,Y
3
0,Y
4
0,Y
5
0,Y
6
0,Y
7
0,Y
8
0,Y
9
0,Y
A
0,Y
B
0,Y
C
0,Y
D
0,Y
E
0,Y
F
0,Y
*Note: X=1 through F
Byte2
Byte3
MSB
×
×
×
×
MSB
AFI higher-order 4bits
Applications
All applications
X applications
Y sub classification of
X application
Limited applications
to Y sub classification
Transportation
Finance
Recognition
Telecommunication
Medical care
Multimedia
Game
Data storage
Physical distribution
management
Package delivery
Postal mail
Air hand baggage
Hold
Hold
Hold
Y=1 through F
Section 2-4
LSB
×
×
×
ｅ
LSB
AFI lower-order 4bits
Example
None specified applications
Select extensively
Mass transportation, bus,
airplane
Banks
Access control
Public telephone, CSM
Internet
Portable file
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