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
2
C 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
