CX11656-11 View Datasheet(PDF) - Conexant Systems

Part Name

Description

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CX11656-11

Home Networking Physical Layer Device with Integrated Analog Front End Circuitry

Conexant Systems 

CX11656 HomePlug 1.0 PHY Data Sheet

Contents

1. Introduction ......................................................................................................................................... 1-1

1.1 Overview .....................................................................................................................................................................1-1

1.2 Features ......................................................................................................................................................................1-3

1.3 Applications ................................................................................................................................................................1-3

2. Hardware Interface .............................................................................................................................. 2-1

2.1 CX11656 PHY Hardware Interface Signals...................................................................................................................2-1

2.2 CX11656 PHY Electrical and Environmental Specifications..........................................................................................2-9

3. CX11656 Functional Description.......................................................................................................... 3-1

3.1 MII Data Interface with MDI Control ............................................................................................................................3-2

3.1.1 MII Interface................................................................................................................................................3-3

3.1.1.1 MII Timing Diagram .................................................................................................................3-3

3.1.1.2 MII Signal Descriptions............................................................................................................3-6

3.1.2

3.1.1.3 MII Frame Structure.................................................................................................................3-8

MDI Control Interface ..................................................................................................................................3-9

3.1.3

3.1.2.1 MDI Signal Descriptions ........................................................................................................3-10

MII Management Register Set ...................................................................................................................3-10

3.1.3.1 PRE (Preamble) .....................................................................................................................3-10

3.1.3.2 ST (Start of Frame) ................................................................................................................3-10

3.1.3.3 OP (Operation Code) ..............................................................................................................3-11

3.1.3.4 PHYAD (PHY Address)...........................................................................................................3-11

3.1.3.5 REGAD (Register Address).....................................................................................................3-11

3.1.3.6 TA (Turnaround) ....................................................................................................................3-11

3.1.3.7 Data .......................................................................................................................................3-11

3.2 GPSI Interface with SPI Control.................................................................................................................................3-12

3.2.1 GSPI Interface ...........................................................................................................................................3-12

3.2.1.1 GPSI Timing Diagrams...........................................................................................................3-12

3.2.1.2 GPSI DC Characteristics.........................................................................................................3-14

3.2.2

3.2.1.3 GPSI Signal Descriptions .......................................................................................................3-14

SPI Slave Port Interface.............................................................................................................................3-15

3.2.2.1 SPI Slave Port Signal Timing .................................................................................................3-15

3.2.2.2 SPI Slave Port DC Characteristics ..........................................................................................3-16

102069A

Conexant Proprietary and Confidential Information

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