4-Port USB 2.0 Controller

Datasheet

SMSC USB20H04

Page 3

Revision 1.63 (03-30-07)

DATASHEET

Table of Contents

Chapter 1

General Description .............................................................................................................5

1.1

Applications ......................................................................................................................................... 5

1.2

OEM Selectable Features ................................................................................................................... 6

1.3

Pin Selectable Options to the Default Configuration........................................................................... 6

Chapter 2

Functional Block Diagram .................................................................................................. 7

Chapter 3

Pinout .................................................................................................................................... 8

Chapter 4

Interface Signal Definition .................................................................................................. 9

4.1

Pin Descriptions .................................................................................................................................. 9

4.2

Buffer Type Descriptions ................................................................................................................... 11

Chapter 5

Limiting Values .................................................................................................................. 12

Chapter 6

Electrical Characteristics .................................................................................................. 13

6.1

Dynamic Characteristics: Analog I/O Pins (DP/DM) ......................................................................... 15

Chapter 7

Functional Overview.......................................................................................................... 16

7.1

Bus-Power Detect ............................................................................................................................. 16

7.2

Upstream PHY .................................................................................................................................. 16

7.3

Clock/PLL .......................................................................................................................................... 16

7.4

Internal Configuration Select............................................................................................................. 16

7.5

Serial Interface .................................................................................................................................. 17

7.5.1

SMBus Slave ..........................................................................................................................................17

7.5.2

I

7.6

Repeater............................................................................................................................................ 17

7.7

SIE..................................................................................................................................................... 17

7.8

Controller ........................................................................................................................................... 17

7.9

Transaction Translator (TT) .............................................................................................................. 18

7.10

Port Controller ................................................................................................................................ 18

7.11

Downstream PHY........................................................................................................................... 18

7.12

OC Sense/Switch Driver ................................................................................................................ 18

7.12.1

Over-Current Sense ............................................................................................................................18

7.12.2

Switch Driver .......................................................................................................................................18

7.13

LED Drivers.................................................................................................................................... 18

Chapter 8

Implementation Notes ........................................................................................................ 20

8.1

Configuration Implementations ......................................................................................................... 20

8.1.1

Interfacing a 2-wire Serial EEPROM.......................................................................................................20

8.1.2

Internal Default Configuration .................................................................................................................21

8.2

EEPROM Programming Values ........................................................................................................ 21

8.3

Default Configuration Values ............................................................................................................ 23

8.4

Reset ................................................................................................................................................. 24

8.4.1

External Hardware Reset........................................................................................................................24

8.4.2

USB Reset ..............................................................................................................................................27

Chapter 9

Hub Descriptors .................................................................................................................28

Chapter 10

Application Diagrams..................................................................................................... 33

Chapter 11

Package Outline .............................................................................................................. 35