DS28E10 Просмотр технического описания (PDF) - Maxim Integrated

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производитель

DS28E10

1-Wire SHA-1 Authenticator

Maxim Integrated 

ABRIDGED DATA SHEET

1-Wire SHA-1 Authenticator

IO (1-Wire)

1-Wire FUNCTION

CONTROL

64-BIT

ROM ID

VCC

POWER

DISTRIBUTION

GND

DS28E10

MEMORY AND

SHA-1 FUNCTION

CONTROL UNIT

CRC-16

GENERATOR

224 BITS USER

MEMORY

REGISTERS

512-BIT

SHA-1 ENGINE

CHALLENGE BUFFER

SECURITY DATA

Figure 1. Block Diagram

COMMAND LEVEL:

1-Wire ROM

FUNCTION COMMANDS

AVAILABLE COMMANDS:

READ ROM

MATCH ROM

SEARCH ROM

SKIP ROM

RESUME

OVERDRIVE-SKIP ROM

OVERDRIVE-MATCH ROM

DS28E10

DATA FIELD AFFECTED:

64-BIT ROM ID, RC-FLAG

64-BIT ROM ID, RC-FLAG

64-BIT ROM ID, RC-FLAG

RC-FLAG

RC-FLAG

RC-FLAG, OD-FLAG

64-BIT ROM ID, RC-FLAG, OD-FLAG

DEVICE-SPECIFIC MEMORY

FUNCTION COMMANDS

Refer to the full data sheet.

Figure 2. Hierarchical Structure for 1-Wire Protocol

MSB

8-BIT

CRC CODE

MSB

LSB MSB

Figure 3. 64-Bit ROM ID

48-BIT SERIAL NUMBER

LSB

8-BIT FAMILY CODE

LSB MSB

LSB

5

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