AT88SC0104CA-MJ 查看數據表（PDF） - Atmel Corporation

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产品描述 (功能)

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AT88SC0104CA-MJ

CryptoMemory

Atmel Corporation 

8. Device Architecture

8.1.

User Zones

The EEPROM user memory is divided into 4 zones of 256 bits each. Multiple zones allow for storage of different types

of data or files in different zones. Access to user zones is permitted only after meeting proper security requirements.

These security requirements are user definable in the configuration memory during device personalization. If the same

security requirements are selected for multiple zones, then these zones may effectively be accessed as one larger

zone.

Figure 9. User Zones

Zone

$0

$1

$2

$3

$4

$5

$6

$7

$00

User 0

-

-

32 Bytes

$18

$00

User 1

-

-

32 Bytes

$18

$00

User 2

-

-

32 Bytes

$18

$00

User 3

-

-

32 Bytes

$18

9. Control Logic

Access to the user zones occur only through the control logic built into the device. This logic is configurable through

access registers, key registers and keys programmed into the configuration memory during device personalization.

Also implemented in the control logic is a cryptographic engine for performing the various higher-level security

functions of the device.

10 AT88SC0104CA

5200ES–CRYPT–08/09

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