參數(shù)資料
型號(hào)： 20H04
廠商： SMSC Corporation
英文描述： 4-PORT USB2.0 HUB CONTROLLER
中文描述： 4端口USB2.0集線器控制器
文件頁(yè)數(shù)： 6/38頁(yè)
文件大?。?/td> 919K
代理商： 20H04
4-Port USB2.0 Hub Controller
Datasheet
Revision 1.63 (10-14-04)
Page 6
SMSC USB20H04
DATASHEET
Table of Contents
USB20H04 Datasheet Revisions.................................................................................................................3
Chapter 1
1.1
1.2
1.3
Chapter 2
General Description.............................................................................................................8
Applications.........................................................................................................................................8
OEM Selectable Features...................................................................................................................9
Pin Selectable Options to the Default Configuration...........................................................................9
Functional Block Diagram ................................................................................................10
Chapter 3
Pinout..................................................................................................................................11
Chapter 4
4.1
4.2
Chapter 5
Interface Signal Definition ................................................................................................12
Pin Descriptions ................................................................................................................................12
Buffer Type Descriptions...................................................................................................................14
Limiting Values..................................................................................................................15
Chapter 6
6.1
Chapter 7
7.1
7.2
7.3
7.4
7.5
7.5.1
7.5.2
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.12.1
7.12.2
7.13
Chapter 8
8.1
8.1.1
8.1.2
8.2
8.3
8.4
8.4.1
8.4.2
Chapter 9
Electrical Characteristics ..................................................................................................16
Dynamic Characteristics: Analog I/O Pins (DP/DM).........................................................................18
Functional Overview..........................................................................................................19
Bus-Power Detect .............................................................................................................................19
Upstream PHY ..................................................................................................................................19
Clock/PLL..........................................................................................................................................19
Internal Configuration Select.............................................................................................................19
Serial Interface..................................................................................................................................20
SMBus Slave..........................................................................................................................................20
I
C Memory Interface..............................................................................................................................20
Repeater............................................................................................................................................20
SIE.....................................................................................................................................................20
Controller...........................................................................................................................................20
Transaction Translator (TT) ..............................................................................................................21
Port Controller................................................................................................................................21
Downstream PHY...........................................................................................................................21
OC Sense/Switch Driver................................................................................................................21
Over-Current Sense............................................................................................................................21
Switch Driver.......................................................................................................................................21
LED Drivers....................................................................................................................................21
Implementation Notes........................................................................................................23
Configuration Implementations .........................................................................................................23
Interfacing a 2-wire Serial EEPROM.......................................................................................................23
Internal Default Configuration.................................................................................................................24
EEPROM Programming Values........................................................................................................24
Default Configuration Values ............................................................................................................26
Reset.................................................................................................................................................27
External Hardware Reset........................................................................................................................27
USB Reset..............................................................................................................................................30
Hub Descriptors .................................................................................................................31
Chapter 10
Application Diagrams.....................................................................................................36
Chapter 11
Package Outline ..............................................................................................................38
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