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Details, datasheet, quote on part number:8X931AA
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Datasheet text preview:
ADVANCE INFORMATION
8x931AA/8x931HA UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLERS
s 8x931AA Hubless USB Peripheral Controller s On-chip USB Transceivers s On-chip Phase-locked loop s FIFO Data Buffers -- Two Pairs of 8-byte Transmit and Receive FIFOs -- One Pair of 16-byte Transmit and Receive FIFOs -- Supports Isochronous and Non-isochronous Data s Automatic FIFO Management s Three USB Interrupt Vectors -- Endpoint Transmit/Receive Done -- Start of Frame -- Global Suspend/Resume/USB Reset s Regulated 3V Output for Root Port Pullup Resistor s On-chip ROM Options -- 0 or 8 Kbytes s 256 bytes On-chip Data RAM s Four Input/Output Ports s MCS® 51 UART s Three 16-bit Timer/Counters s Keyboard Control Interface s Four Dedicated LED Driver Outputs s 6- or 12-MHz Crystal Operation -- Low Clock Mode (3MHz) s 8x931HA Includes all 8x931AA Features s 8x931HA USB Hub has One Internal Downstream, and Four External Downstream Ports -- Universal Serial Bus Specification 1.0 Compliant -- Serves as both USB Hub and USB Embedded Function (Internal Port) s 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 s Hub Endpoint Done Interrupt s Output Pin for Port Power Switching s Input Pin for Overcurrent Detection s Hub FIFO Data Buffers -- One Pair of 8-byte Transmit and Receive FIFOs -- One 1-byte Transmit Register s Embedded Function FIFO Data Buffers -- Same as the 8x931AA s 12-MHz Crystal Operation -- Low Clock Mode (3MHz)
The 8x931AA and 8x931HA USB peripheral controllers are based on the MCS®51 microcontroller. They consist of standard 8XC51Fx peripherals plus a USB module. The 8x931HA USB module provides both USB hub and USB embedded function capabilities. The 8x931HA supports USB hub functionality, embedded function, suspend/resume modes, isochronous/non-isochronous transfers, and is USB rev 1.0 specification compliant. The USB module contains one internal and 4 external downstream ports and integrates the USB transceivers, serial bus interface engine (SIE), hub interface unit (HIU), function interface unit (FIU), and transmit/receive FIFOs. The 8x931AA is a hubless USB peripheral controller which contains the same feature set as the 8x931HA hub controller except for the hub module. The 8x931AA/HA uses the standard instruction set of the MCS 51 architecture.
COPYR IGHT © INTEL CORPORATION, 1997
November 1997
Ord er Number: 273108-002
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 warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringem ent of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel retains the right to make changes to specifications and product descriptions at any time, without notice. *Third-party brands and names are the property of their respective owners. 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 referenced in this document, or other Intel literature, may be obtained from: Intel Corporation Literature Sales PO Box 5937 Denver, CO 80217-9808 or call 1-800-548-4725
CO PY RIG HT © INTEL CORPORATION, 1997
CONT ENTS
1.0 About This Document.......... 1 1.1 Additional Information Sources ..... 1 1.2 Electronic Information........... 1 1.3 Product Summary.. 2 2.0 Nomenclature Overview ............ 4 3.0 Pinout .......... 6 3.0.1 8x931HA 68-pin PLCC Package ..........6 3.0.2 8x931AA 68-pin PLCC Package ..........7 4.0 Signals ............ 10 5.0 Electrical Characteristics ......... 13 5.1 Operating Frequencies ....... 14 5.2 DC Characteristics........ 15 5.3 Explanation of Timing Symbols ... 17 5.4 System Bus AC Characteristics... 18 5.4.1 System Bus Timing Diagrams ...19 5.5 AC Characteristics -- Synchronous Mode 0 ....... 21 5.6 External Clock Drive ........... 22 5.7 Testing Waveforms ............ 23 6.0 Thermal Characteristics .......... 24 7.0 Design Considerations ............ 24 7.1 Low Clock Mode Frequency........ 24 7.2 Setting RXFFRC Bit Clears Only the Oldest Packet in the FIFO ......... 24 7.3 Series Resistor Requirement for Impedance Matching ...... 24 7.4 Pullup Resistor Requirement for 8x931AA/HA devices...... 24 7.5 Powerdown Mode Cannot Be Invoked Before USB Suspend ..... 24 7.6 Unused Downstream Ports.......... 24 7.7 ECAP Usage to Supply 3.0 to 3.6 Volts for 1.5K Ohm Pullup ..... 24 8.0 8x931AA/HA Errata .. 25 9.0 Datasheet Revision History ..... 25
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8x931AA, 8x931HA USB PERIPHERAL CONTROLLER
Figures
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
8x931 Functional Block Diagram.........2 8x931HA USB Module Block Diagram ......... 3 Product Nomenclature .........4 8x931HA 68-pin PLCC Package ......... 6 8x931AA 68-pin PLCC Package ......... 7 8x931AA/HA External Program Memory Read ......... 19 8x931AA/HA External Data Memory Read ...... 20 8x931AA/HA External Data Memory Write.......20 Serial Port Waveform -- Synchronous Mode 0.........21 External Clock Drive Waveforms.......22 AC Testing Input, Output Waveforms.........23 Float Waveforms ....... 23
Tables
1. 2. 3. 5. 4. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.
Related Documentation........1 Electronic Information .......... 1 Description of Product Nomenclature..4 8x931AA Proliferation Options ............ 5 8x931HA Proliferation Options ............ 5 68-pin PLCC Pin Assignment.....8 68-pin PLCC Signal Assignments Arranged by Functional Category .......... 9 Signal Description ..... 10 8x931AA/8x931HA Supply Voltages..........13 8x931HA Operating Frequency.........14 8x931AA Operating Frequencies ...... 14 DC Characteristics at Operating Conditions.....15 AC Timing Symbol Definitions..........17 External Bus Characteristics .... 18 Serial Port Timing -- Synchronous Mode 0 ..... 21 External Clock Drive..22 Thermal Characteristics ........... 24 Vcc and Typical ECAP Voltages ....... 25
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8x931AA, 8x931HA USB PERIPHERAL CONTROLLER
1.0
ABOUT THIS DOCUMENT
1.2
Electronic Information
This data sheet contains advance information about Intel's 8x931AA and 8x931HA Universal Serial Bus peripheral controllers, based on the MCS®51 peripheral controller, which includes a functional overview, mechanical data, targeted electrical specifications (simulated), and bus functional waveforms. A detailed functional description, other than parametric performance, is published in the 8x931AA, 8x931HA Universal Serial Bus Peripheral Controller User's Manual (273102-001).
We offer a variety of technical and product information through the World Wide Web (see Table 2 for URL) and through FaxBack service which is an on-demand publishing system that sends documents to your fax machine. You can get product announcements, change notifications, product literature, device characteristics, design recommendations, and quality and reliability information 24 hours a day, 7 days a week. Just dial the telephone number and respond to the system prompts.
1.1
Additional Information Sources
Intel documentation is available from your local Intel Sales Representative or Intel Literature Sales. Intel Corporation Literature Sales PO Box 5937 Denver, CO 80217-9808 or call 1-800-548-4725 Table 1. Related Documentation Document Title Order/Contact Intel Order #273102-001 Intel Order #272904
8x931AA, 8x931HA Universal Serial Bus Peripheral Controller User's Manual Universal Serial Bus Specification, Rev. 1.0
Table 2. Electronic Information Document Title Intel's World-Wide Web (WWW) Location: Customer Support (US and Canada): FaxBack Service:
Order/Contact http://www.intel.com/design/usb/ 800-628-8686
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ADVANCE INFORMATION
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