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Alcor AU9440 Technical Reference Manual

Usb keyboard controller
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AU9440
USB Keyboard Controller
Technical Reference Manual
Revision 1.1
2002 Alcor Micro Corp.
All Rights Reserved

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Summary of Contents for Alcor AU9440

  • Page 1 AU9440 USB Keyboard Controller Technical Reference Manual Revision 1.1 2002 Alcor Micro Corp. All Rights Reserved...
  • Page 2 Alcor Micro Corp. reserves the right to change this product without prior notice. Alcor Micro Corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. Specifications are subject to change without prior notice.

  • Page 3: Table Of Contents

    Pin Assignment------------------------------------------------------------------------------- System Architecture and Reference Design---------------------------------------- 4.1 AU9440 Block Diagram----------------------------------------------------------------- 4.2 Sample Schematics----------------------------------------------------------------------- 4.3 AU9440 Keyboard EEPOM Sample Value----------------------------------------- Electrical Characteristics------------------------------------------------------------------ 5.1 Recommended Operating Conditions ----------------------------------------------- 5.2 General DC Characteristics ----------------------------------------------------------- 5.3 DC Electrical Characteristic for 3.3 volts operation ----------------------------- 5.4 Crystal Oscillator Circuit Setup for Characteristics -----------------------------...
  • Page 4 This Page Intentionally Left Blank TABLE OF CONTENTS...

  • Page 5: Introduction

    USB usage page and usage code, including standard key code, ACPI and multimedia usage…etc. Separated ACPI key is another special feature offered by AU9440. There is one pin dedicated for all-in-one ACPI function, and one additional scan line to support 8 “Desktop” page keys.
  • Page 6 • An additional LED2 for suspend special usage which will be turned on in suspend or can be defined by vendors • Support ACPI compliant suspend/shutdown key • Fn key toggles or selectable based on a configuration bit • USB vendor ID, product ID, and keyboard scan code table can be customized via optional external EEPROM.

  • Page 7: Application Block Diagram

    2.0 Application Block Diagram The AU9440 is a single chip that integrates USB keyboard, ACPI and multimedia control functionalities. The multimedia function keys are designed to support a full range of hotkeys such as CD/DVD, Play/Pause, Stop, Eject, Mute and general purpose shortcut keys for one key Internet, E-mail, Help and etc.
  • Page 8 This Page Intentionally Left Blank APPLICATION BLOCK DIAGRAM...

  • Page 9: Pin Assignment

    3.0 Pin and Pad Assignment 3.1 Pin Assignment VCC5V VCC_3V XTAL_1 EEP_ENABLE XTAL_2 SCANR_1 USB_DM USB_DP SCAN_R2 SCANR_3 LED2 LED1 SCANR_4 SCANR_5 NUM_LOCK SCANR_6 CAP_LOCK SCANR_7 SCROLL_LOCK SCANR_8 E2PDATA/ROM_SEL1 SCANR_9 E2PCLK/ROM_SEL2 Fn_KEY SCANR_10 SCANR_11 ACPI_KEY SCANR_12 SCANC_8 SCANR_13 SCANC_7 SCANR_14 SCANC_6 SCANR_15 SCANC_5...
  • Page 10 Table 3-1. Pin Description Pin No. Pin Name IO Type Description VCC5V Power Supply 5v power supply XTAL_1 INPUT 6MHz crystal, input XTAL_2 OUTPUT 6MHz crystal, output SCANR_1 INPUT/OUTPUT, PULL DOWN Row/Scan line SCANR_2 INPUT/OUTPUT, PULL DOWN Row/Scan line SCANR_3 INPUT/OUTPUT, PULL DOWN Row/Scan line SCANR_4 INPUT,PULL UP, PULL DOWN Row/Scan line...
  • Page 11 LED2 OUTPUT Additional LED2 – low active – open drain USB_DP INPUT/OUTPUT USB upstream D+ USB_DM INPUT/OUTPUT USB downstream D- GROUND EEP_ENABLE Input Enable EEPROM function Hi for EEPROM Lo for internal ROMs VCC3V 3.3 V Output On chip 3.3v regulator output PIN ASSIGNMENT...
  • Page 12 This Page Intentionally Left Blank PIN ASSIGNMENT...

  • Page 13: System Architecture And Reference Design

    4.0 System Architecture and Reference Design 4.1 AU9440 Block Diagram AU9440 Block Diagram Suspend, Keyboard Resume & Keypad Root Command XCVR Scan Port Processor Frame Timer FIFO Column Vendor LED(2) Num Lock Cap Lock Control Scroll Lock Fn Key Special Key Cobntrol...

  • Page 14: Sample Schematics

    Date: Friday , July 20, 2001 Sheet Disclaimer: This schematic is for reference only. Alcor Micro Corp. makes no warranty for the use of its products and bear no responsibility for any error that appear in this document. SYSTEM ARCHITECTURE AND REFERENCE DESIGN...

  • Page 15: Au9440 Keyboard Eepom Sample Value

    4.3. AU9440 Keyboard EEPROM Sample Value Offset Hez Value Description 00,01 Configuration Byte 0 bit 5 : 1= Individual Power Byte 0 bit 6 : 1= HUB Enable Port Error Byte 0 bit 7 : 1= HUB Select SelfPower change by HID Byte 1 bit 0 : 1=Wakeup on any key;...
  • Page 16 09 Hub class 00 Sub-class 00 Device Protocol 08 Maximum packet size VV VV Vender ID – Alcor Hub Vender ID PP PP Product ID - Alcor Hub Product ID 22 01 Device release number 01 Index of Manufacturer string descriptor 02 Index of Product string descriptor 00 Index of serial number string descriptor –...
  • Page 17 09 Descriptor length 29 Hub Descriptor 03 Number of downstream port – one keyboard and 2 external ports 04 00 Over-current sensing, compound device, gang power switch 16 Power good wait time 16hx21``` mS 32 Maximum current required (50 mA) 02 Port 1 is not removable FF Port power control mask 12,01,10,01,00,00,00,08,...
  • Page 18 Output (Constant) End Collection 04,03,09,04 Lang ID array, (index 0), change string Leng,Str_desc, (index 1) 41,4C,43,4F, 52, Manufacturer, ALCOR Leng, Str_desc (index 2), change string 55,53,42,20,4D,75,6C,74, Product, 69,6D,65,64,69,61,20,4B, USB Multimedia Keyboard 65,79,62,6F,61,72,64, Leng,Str_desc (Serial number, index 3), change string 55,53,42,20,4D,75,6C,74,...
  • Page 19 00,00,00,E3, Row 18 column5 Normal Key: <Win-L> 43,24,02,00, Row 18 column4 Hotkey/ID3 <Back> 00,00,00,65, Row 18 column3 Normal Key: <Apps> 43,B6,00,00, Row 18 column2 Hotkey/ID3: <Last Track> 43,B5,00,00, Row 18 column1 Hotkey/ID3: <Scan Next Track> 44,F1,00,00, Row 17 column 8 Hotkey/ID4: <User 2> 00,00,00,E7, Row 17 column 7 Normal Key: <Win-R>...
  • Page 20 00,00,00,61, Row 12 column4 Normal Key: <6 →> 00,00,00,4E, Row 12 column3 Normal Key: <9 Pgup> 00,00,00,4B, Row 12 column2 Normal key: <PageDn> Row 12 column1 Normal Key: <PageUp> 00,00,00,51, 00,00,00,53, Row 11 column8 Normal Key: <↓> 00,00,00,00, Row 11 column7 Normal Key: <Num> 00,00,00,59, Row 11 column6 Normal Key: <00>...
  • Page 21 00,00,00,0C, Row 6 column3 Normal Key: <I> 00,00,00,25, Row 6 column2 Normal Key: <*8> 00,00,00,2E, Row 6 column1 Normal Key: < 00,00,00,11, Row 5 column8…Normal Key: <N> 00,00,00,10, Row 5 column7 Normal Key: <M> 00,00,00,0B, Row 5 column6 Normal Key: <H> 00,00,00,0D, Row 5 column5 Normal Key: <J>...
  • Page 22 This Page Intentionally Left Blank SYSTEM ARCHITECTURE AND REFERENCE DESIGN...

  • Page 23: Electrical Characteristics

    5.0 Electrical Characteristics 5.1 Recommended Operating Conditions SYMBOL PARAMETER UNITS Power Supply 4.75 5.25 Input Voltage Operating Temperature Storage Temperature 5.2 General DC Characteristics SYMBOL PARAMETER CONDITIONS TYP MAX UNITS µA Input low current no pull-up or pull-down µA Input high current no pull-up or pull-down µA Tri-state leakage current...

  • Page 24: Crystal Oscillator Circuit Setup For Characteristics

    5.4 Crystal Oscillator Circuit Setup for Characterization The following setup was used to measure the open loop voltage gain for crystal oscillator circuits. The feedback resistor serves to bias the circuit at its quiescent operating point and the AC coupling capacitor, Cs, is much larger than C1 and C2. ELECTRICAL CHARACTERISTICS...

  • Page 25: Esd Test Results

    5.5 ESD Test Results Test Description : ESD Testing was performed on a Zapmaster system using the Human- Body –Model (HBM) and Machine-Model (MM), according to MIL_STD 883 and EIAJ IC_121 respectively. Human-Body-Model stress devices by sudden application of a high voltage supplied by a 100 PF capacitor through 1.5 Kohm resistance.

  • Page 26: Latch-Up Test Results

    5.6 Latch-Up Test Results Test Description: Latch-Up testing was performed at room ambient using an IMCS-4600 system which applies a stepped voltage to one pin per device with all other pins open except Vdd and Vss which were biased to 5 Volts and ground respectively.
  • Page 27 Icc M easurem ent V Supply 1 Source Untested under Output O pen test C ircuit Untested Input Tied to V supply Trigger Source Test Circuit : Negative Input/ O utput O vervoltage /O vercurrent Icc Measurement V Supply Untested Output Open Circuit All Input Tied...
  • Page 28 This Page Intentionally Left Blank ELECTRICAL CHARACTERISTICS...

  • Page 29: Mechanical Information

    6.0 Mechanical Information 6.1 48 SSOP Outline Drawing MECHANICAL INFORMATION...
  • Page 30 6.2 48 –DIP Outline Drawing MECHANICAL INFORMATION...

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