Intel 8x931HA Advance Information Datasheet
8x931HA USB Customer Hub
Advance Information Datasheet
Product Features
■ Intel 8x931HA USB Peripheral Controller
■ 8x931HA USB Hub has One Internal
Downstream, and Four External
Downstream Ports
■ USB Hub
—Connectivity Management
—Downstream Device Connect/
Disconnect Detection
—Power Management, Including Suspend
and Resume
—Bus Fault Detection and Recovery
—Full and Low Speed Downstream
Device Support
The Intel 8x931HA USB Customer Hub (CHUB) is a hardware reference design for the USB
system designer.
The Intel 8x931HA USB CHUB incorporates a fully functional Intel 8x931HA USB Peripheral
Controller. The CHUB has undergone the same level of testing required of a commercial USB
Hub product, such as USB PlugFest compliance and Intel System Integration and Validation
testing.
■ Hardware Reference Design
—Status LED
—Self/Bus Power Switch Options
—Reset Switch
—Internal Program Memory Option
—Uses High Side Power Switch for USB
Power Management
—provides current limiting
—provides thermal shut down
—500mA minimum continous load
current per channel
This document contains information on products in the sampling and initial production phases of
development. The specifications are subject to change without notice. Verify with your local Intel
sales office that you have the latest datasheet before finalizing a design.
Order Number: 273141-003
June 1998
8x931HA USB Customer Hub
Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or otherwise, to any intellectual
property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability
whatsoever, and Intel disclaims any express or implied wa r r anty, relating to sale and/or use of Int e l pr oducts in cluding li a bility or warranties relating to
fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not
intended fo r use in medic al , li f e saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
The 8x931HA USB Customer Hub may contain design defects or errors known as errata which may cause the product to deviate from published
specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Copies of documents which have an ordering number and are refere nced in this document , o r ot her Intel literature ma y be obtained by calling 1-800-
548-4725 or by visiting Intel’s website at http://www.intel.com.
Copyright © Intel Corporation, 1997
*Third-party brands and names are the property of their respective owners.
2 Advance Information Datasheet
8x931HA USB Customer Hub
Contents
1.0 Introduction..................................................................................................................5
2.0 Board Connector Interface.....................................................................................6
3.0 Functional Description.............................................................................................8
3.1 Self/Bus-Powered Operation.................................................................................8
3.2 Status LED............................................................................................................8
3.3 Internal Program Memory Option..........................................................................8
3.4 External EPROM Enabling or Disabling................................................. .............. .8
3.5 Firmware ...............................................................................................................9
3.6 Design N ot e s............ .. ........... ... ........... .. ............ ........... ... ........... .. ............ .. ...........9
3.6.1 Suspend Current...................................................................................... 9
3.6.2 Input Power Specification.......................................................................10
3.6.3 Overcur re n t T ripping ... ........... ............ .. ........... ... ........... .. ............ .. .........1 0
4.0 Mechanical Data .......................................................................................................11
4.1 Module D ime n sions.... .. .. ............ .. ............ .. ........... ... ........... ............ .. ........... ... ....11
4.2 Plastic Encasing Removal and Assembly Procedures........................................12
4.2.1 Plastic Encasing Removal......................................................................12
4.2.2 Plastic Encasing Assembly ....................................................................12
4.3 Component Specifications...................................................................................12
5.0 Bill of Materials.........................................................................................................13
6.0 Schematics.................................................................................................................15
Figures
1 Intel 8x931HA USB Customer HUB Block Diagram.................................. .. ..........6
2 Top View of CHUB ........................... .. .. .. ................. .................... ..........................6
3 Bottom Label for CHUB Device .............................................................................7
4 Top and Bottom View of CHUB Encasing...........................................................11
5 Device Dimensions..............................................................................................11
Tables
1 Electronic Information............................................................................................5
2 Related Documents...............................................................................................5
3 CHUB Connectors.................................................................................. .............. .7
4 JW2 Jumper Settings ............................................................................................8
5 JW1 Jumper Settings ............................................................................................8
6 Bill of Materials (CHUB Rev. D) .................................................. ........................14
Advance Information Datasheet 3
1.0 Introduction
The Intel 8x931HA USB Customer HUB (CHUB) is a hardware reference design for the USB
system designer.
The CHUB serves as an evaluation platform and reference design for use in constructing a USB
HUB that incorporates Intel’s 8x931HA USB Peripheral Controller.
This design was built using Intel USB Development Tools. For more information visit Intel on the
web.
Table 1. Electronic Information
8x931HA USB Customer Hub
This document, a s well as a ny upd ates or a ddendums
are available at:
A variety of product information is available at: http://developer.intel .com/design/usb
USB software su pport can be found at : http://developer.intel.com/desi gn/usb/sws up
Intel 8x931HA Customer HUB schematic s http://developer.intel.com/d esign/usb/schems
Intel USB Specification Updates http://developer.intel.com/desi gn/usb/spe cupdt
Information about USB and specifications can be
found at:
Table 2. Related Documents
Document Title Order Number
8x931AA/8x931 HA Universal Serial Bus Per ipheral
Controller D ata s h eet
8x931AA, 8x931HA Universal Serial Bus
Peripheral Controller User’s Manual
Universal Serial Bus Speci f ication, Rev. 1.0
8x931HA Universal Serial Bus Customer Hub
Specification Update
http://developer.intel .com/design/usb/manuals
http://www.usb.org
Intel Order #273108
Intel Order #273102
Intel Order #272904
Intel Order #273155
Advance Information Datasheet 5
8x931HA USB Customer Hub
Figure 1. Intel 8x931HA USB Customer HUB Block Diagram
Port0
Upstream
D0-D7
8x931 Hx
Intel USB HUB
AD0-AD7
12 MHz
Clock
Port2
Port3
Port4
Port5
Status
2.0 Board Connector Interface
Figure 2 illustrates the major components of the CHUB board. See Section 5.0 for a complete
component list.
Figure 2. Top View of CHUB
74ACT373
Latch
A8-A15
A0-A7
32Kx8
EPROM
A4601-01
FB1
S1
FB7
J3
RP4
C18
U3
R3
JW1
U2
C7
C9
C14
U4
U1
J1
C4
16V
10
C8
R1
FB16
FB18
FB20
C13
FB21
JW2
C2C1
120
C15
U5
R2
C11
C10
RP1
RP5
RP2
C12
C16
FB2
FB4
FB5
FB6
FB7
FB8
FB10
FB13
FB14
FB15
FB17
FB19
C17
FB3
FB22
J2
FB12FB11
CR1
J4
A4539-02
Figure 3 illustrates the connectors available to the user. The CHUB device will have a label on the
bottom resembling Figure 3. Table 3 describes the device connections and their specific types.
6
Advance Information Datasheet
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