Cypress CY7C656xx User Manuals

Table of Contents

• 1.0 Features

  1
• 2.0 Introduction

  1
• 3.0 Block Diagrams

  2
  • 3.1 USB Serial Interface Engine (SIE)

    4
  • 3.2 Hub Repeater

    4
  • 3.3 Transaction Translator (TT)

    4
• 4.0 Applications

  4
• 5.0 Functional Overview

  4
  • 5.1 System Initialization

    4
  • 5.2 Enumeration

    4
  • 5.3 Multiple Transaction Translator Support

    4
  • 5.4 Downstream Ports

    4
  • 5.5 Upstream Port

    5
  • 5.6 Power Switching

    5
  • 5.7 Over-current Detection

    5
  • 5.8 Port Indicators

    5
• 6.0 Pin Configuration

  7
• 7.0 Pin Description Table

  8
• 8.0 Default Descriptors

  10
  • 8.1 Device Descriptor

    10
  • 8.2 Configuration Descriptor

    10
  • 8.3 Interface Descriptor

    10
  • 8.4 Endpoint Descriptor

    11
  • 8.5 Interface Descriptor[9,10]

    11
  • 8.6 Endpoint Descriptor[9,10]

    11
  • 8.7 Device Qualifier Descriptor

    11
  • 8.8 Hub Descriptor

    12
• 9.0 Configuration Options

  12
  • 9.1 Default - 0xD0 Load

    12
  • 9.2 Configured - 0xD2 Load

    13
  • 9.3 Configured - 0xD4 Load

    13
• 10.0 Supported USB Requests

  16
  • 10.1 Device Class Commands

    16
  • 10.2 Hub Class Commands

    17
• 11.0 Upstream USB Connection

  19
• 12.0 Downstream USB Connections

  19
• 13.0 LED Connections

  19
• 14.0 System Block Diagram

  20
• 15.0 Electrical Characteristics

  21
  • 15.1 Absolute Maximum Ratings

    21
  • 15.2 Operating Conditions

    21
  • 15.3 DC Electrical Characteristics

    21
  • 15.4 USB Transceiver

    21
  • 15.5 AC Electrical Characteristics

    21
    • 15.5.1 Serial Peripheral Interface

      21
• 16.0 Ordering Information

  22
• 17.0 Package Diagrams

  22