DS2408 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

DS2408

1-Wire 8-Channel Addressable Switch

Maxim Integrated 

Figure 1. DS2408 BLOCK DIAGRAM

VCC

PARASITE POWER

INTERNAL VCC

I/O

GND

1-WIRE

FUNCTION

CONTROL

REGISTER

FUNCTION

CONTROL

64-BIT

LASERED ROM

PORT

FUNCTION

CONTROL

CRC16

GENERATOR

REGISTER

PAGE

PORT

INTER-

FACE

RSTZ

P0

P1

P2

P3

P4

P5

P6

P7

Figure 2. HIERARCHICAL STRUCTURE FOR 1-Wire PROTOCOL

Bus

Master

1-Wire Net

Other

Devices

DS2408

Command

Level:

1-Wire ROM Function

Commands

DS2408-Specific

Control Function

Commands

DS2408

Available

Commands:

Read ROM

Match ROM

Search ROM

Skip ROM

Conditional Search

ROM

Overdrive Match

Overdrive Skip

Resume

Cmd. Data Field

Codes: Affected:

33h

55h

F0h

CCh

ECh

69h

3Ch

A5h

64-BIT ROM, RC-FLAG

64-BIT ROM, RC-FLAG

64-BIT ROM, RC-FLAG

RC-FLAG

64-BIT ROM, RC-FLAG, Port Status,

Cond. Search Settings,

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

RC-FLAG, OD-Flag

RC-FLAG

Read PIO Registers

Channel Access Read

Channel Access Write

Write Conditional

Search Register

Reset Activity Latches

F0h

F5h

5Ah

CCh

C3h

PIO Registers

Port Input Latches

Port Output Latches

Conditional Search Register

Activity Latches

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