4

AT88SC1616C

2030AS–09/01

Configuration

Zone

The configuration zone consists of 2048 bits of EEPROM memory used for storing passwords,

keys, codes and defining security levels to be used for each user zone. Access rights to the

configuration zone are defined in the control logic and may not be altered by the user.

Security Fuses

There are three fuses on the device that must be blown during the device personalization pro-

cess. Each fuse locks certain portions of the configuration zone as OTP memory. Fuses are

designed for the module manufacturer, card manufacturer and card issuer and should be

blown in sequence, although all programming of the device and blowing of the fuses may be

performed at one final step.

Table 3. Configuration Zone

Component

Address

Answer to Reset

$00

Fab Code

Memory Test Zone

Card Manufacturers Code

Lot History Code

Identification Number

$18

Device Configuration Register

Access Registers

Password/Key Registers

Authentication Attempts Counters

$50

Cryptograms

Session Encryption Keys

Secret Seeds

$90

Password Attempts Counters

$B0

Write Passwords

Read Passwords

Reserved

$F0