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CY7C65640
TetraHub™ High-Speed USB
Hub Controller
Cypress Semiconductor Corporation
Document #: 38-08019 Rev. *E
•
3901 North First Street
•
San Jose
,
CA 95134
•
408-943-2600
Revised June 22, 2004
CY7C65640
TABLE OF CONTENTS
1.0 TETRAHUB™ FEATURES ............................................................................................................. 5
2.0 INTRODUCTION ............................................................................................................................. 6
2.1
2.2
2.3
2.4
2.5
TetraHub Architecture ................................................................................................................6
USB Serial Interface Engine (SIE) ............................................................................................. 6
Hub Controller ............................................................................................................................ 7
Hub Repeater ............................................................................................................................. 7
Transaction Translator ............................................................................................................... 7
3.0 APPLICATIONS .............................................................................................................................. 7
4.0 FUNCTIONAL OVERVIEW ............................................................................................................. 7
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
System Initialization ................................................................................................................... 7
Enumeration ............................................................................................................................... 7
Multiple Transaction Translator Support .................................................................................... 8
Downstream Ports ..................................................................................................................... 8
Upstream Port ............................................................................................................................ 8
Power Switching ........................................................................................................................ 8
Over-current Detection ............................................................................................................... 8
Port Indicators ............................................................................................................................ 9
5.0 PIN CONFIGURATION .................................................................................................................10
6.0 PIN DESCRIPTION TABLE ..........................................................................................................11
7.0 DEFAULT DESCRIPTORS ...........................................................................................................13
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
Device Descriptor .....................................................................................................................13
Configuration Descriptor ..........................................................................................................13
Interface Descriptor ..................................................................................................................13
Endpoint Descriptor .................................................................................................................14
Interface Descriptor[3] ..............................................................................................................14
Endpoint Descriptor[3] .............................................................................................................14
Device Qualifier Descriptor ......................................................................................................14
Hub Descriptor .........................................................................................................................15
8.0 CONFIGURATION OPTIONS .......................................................................................................16
8.1 Default – 0xD0 Load ................................................................................................................16
8.2 Configured – 0xD2 Load ..........................................................................................................16
9.0 SUPPORTED USB REQUESTS ...................................................................................................18
9.1 Device Class Commands .........................................................................................................18
9.2 Hub Class Commands .............................................................................................................18
10.0 UPSTREAM USB CONNECTION ...............................................................................................21
11.0 DOWNSTREAM USB CONNECTIONS ......................................................................................21
12.0 LED CONNECTIONS ..................................................................................................................21
13.0 SAMPLE SCHEMATIC ...............................................................................................................22
14.0 ELECTRICAL CHARACTERISTICS ...........................................................................................23
14.1 Absolute Maximum Ratings ...................................................................................................23
14.2 Operating Conditions .............................................................................................................23
14.3 DC Electrical Characteristics .................................................................................................23
Document #: 38-08019 Rev. *E
Page 2 of 27
CY7C65640
TABLE OF CONTENTS
(continued)
14.4 AC Electrical Characteristics ..................................................................................................24
14.4.1 Serial Peripheral Interface ............................................................................................................ 24
14.4.2 Eye Diagram ................................................................................................................................24
15.0 ORDERING INFORMATION .......................................................................................................25
16.0 PACKAGE DIAGRAMS ..............................................................................................................25
16.1 Quad Flat Package No Leads (QFN) Package Design Notes ...............................................25
Document #: 38-08019 Rev. *E
Page 3 of 27
CY7C65640
LIST OF FIGURES
Figure 2-1. Block Diagram ..................................................................................................................... 6
Figure 5-1. 56-pin Quad Flat Pack No Leads (8 mm x 8 mm) ............................................................. 10
Figure 10-1. USB Upstream Port Connection ...................................................................................... 21
Figure 11-1. USB Downstream Port Connection ................................................................................. 21
Figure 12-1. USB Downstream Port Connection ................................................................................. 21
Figure 13-1. Sample Schematic .......................................................................................................... 22
Figure 16-1. Cross-section of the Area Underneath the QFN Package .............................................. 26
Figure 16-2a. Plot of the Solder Mask (White Area) ............................................................................ 26
Figure 16-2b. X-Ray Image of the Assembly ....................................................................................... 26
LIST OF TABLES
Table 4-1.
Table 4-2.
Table 6-1.
Table 9-1.
Table 9-2.
Table 9-3.
Table 9-5.
Table 9-4.
Automatic Port State to Port Indicator Color Mapping .......................................................... 9
Port Indicator Color Definitions in Manual Mode .................................................................. 9
Pin Assignments .................................................................................................................11
Device Class Requests ......................................................................................................18
Hub Class Requests ...........................................................................................................18
Hub Class Feature Selector ...............................................................................................19
Port Indicator Selector for Feature Selector PORT_INDICATOR (0x22) ...........................20
Test Mode Selector for Feature Selector PORT_TEST (0x21) ..........................................20
Document #: 38-08019 Rev. *E
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