4-Port USB 2.0 Controller

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

I2C Memory Interface..............................................................................................................................

17

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

SMSC USB20H04

Page 3

Revision 1.63 (03-30-07)

DATASHEET