Specifications of the HT2 MOA3 S20

Rev. 1.1

1997-08-19

Ht2moa3.doc/HS

Page 12 of 22

5 Functional Description of HITAG 2

5.1 Memory Organization

The memory of the transponder consists of 256 bits EEPROM memory and is organized in 8

pages with 32 bits each.

Depending on the operation mode the EEPROM is organized as described in the following.

Crypto Mode:

Page

Content

0

Serial Number

1

32 bit "KEY LOW"

2

16 bit " KEY HIGH", 16 bit reserved

3

8 bit Configuration, 24 Bit Password TAG

4

read/write page

5

read/write page

6

read/write page

7

read/write page

Password Mode:

Page

Content

0

Serial Number

1

Password RWD

2

reserved

3

8 bit Configuration, 24 bit Password TAG

4

read/write page

5

read/write page

6

read/write page

7

read/write page