CY7C656xx

Document Number: 38-08037 Rev. *S

Page 3 of 28

Contents

EZ-USB HX2LP™ Low Power

USB 2.0 Hub Controller Family ....................................... 1

Features ............................................................................. 1

Block Diagram CY7C65630 .............................................. 1

Block Diagram CY7C65620 .............................................. 2

Introduction ....................................................................... 4

USB Serial Interface Engine ........................................ 4

Hub Repeater .............................................................. 4

Transaction Translator ................................................ 4

Applications ...................................................................... 4

Functional Overview ........................................................ 5

System Initialization ..................................................... 5

Enumeration ................................................................ 5

Downstream Ports ....................................................... 5

Upstream Port ............................................................. 5

Power Switching .......................................................... 5

Overcurrent Detection ................................................. 5

Port Indicators ............................................................. 6

Pin Configuration ............................................................. 7

Pin Description ................................................................. 8

Default Descriptors ........................................................ 10

Device Descriptor ...................................................... 10

Configuration Descriptor ............................................ 10

Interface Descriptor ................................................... 11

Endpoint Descriptor ................................................... 11

Device Qualifier Descriptor ........................................ 11

Hub Descriptor .......................................................... 12

Configuration Options ................................................... 13

0xD0 Load ................................................................. 13

0xD2 Load ................................................................. 13

0xD4 Load ................................................................. 14

Supported USB Requests .............................................. 17

Device Class Commands .......................................... 17

Hub Class Commands .............................................. 18

Upstream USB Connection ............................................ 20

Downstream USB Connection ....................................... 20

LED Connection .............................................................. 20

System Block Diagram ................................................... 21

Electrical Characteristics ............................................... 22

Absolute Maximum Ratings ....................................... 22

Operating Conditions ................................................. 22

DC Electrical Characteristics ..................................... 22

USB Transceiver ....................................................... 22

AC Electrical Characteristics ..................................... 22

Ordering Information ...................................................... 23

Ordering Code Definitions ......................................... 23

Package Diagram ............................................................ 24

Thermal Impedance for the package ......................... 24

Document Conventions ................................................. 25

Acronyms Used ......................................................... 25

Units of Measure ....................................................... 25

Document History Page ................................................. 26

Sales, Solutions, and Legal Information ...................... 28

Worldwide Sales and Design Support ....................... 28

Products .................................................................... 28

PSoC Solutions ......................................................... 28

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