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AT88SC0808C Datasheet(PDF) 4 Page - ATMEL Corporation |
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AT88SC0808C Datasheet(HTML) 4 Page - ATMEL Corporation |
4 / 14 page 4 AT88SC0808C 2024DS–SMEM–04/03 Configuration Zone The configuration zone consists of 2048 bits of EEPROM memory used for storing pass- words, keys and 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 personaliza- tion process. 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 Device Configuration Register $18 Identification Number Access Registers Password/Key Registers Issuer Code Authentication Attempts Counters $50 Cryptograms Session Encryption Keys Secret Seeds Password Attempts Counters $B0 Write Passwords Read Passwords Reserved |
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