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AU9440

USB Keyboard Controller

Technical Reference Manual

Revision 1.1

2002 Alcor Micro Corp.

Содержание AU9440

Страница 2: ...nty 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 Contact Information Web site http www a...

Страница 3: ...440 Block Diagram 9 4 2 Sample Schematics 10 4 3 AU9440 Keyboard EEPOM Sample Value 11 5 0 Electrical Characteristics 19 5 1 Recommended Operating Conditions 19 5 2 General DC Characteristics 19 5 3 D...

Страница 4: ...TABLE OF CONTENTS i This Page Intentionally Left Blank...

Страница 5: ...stomization of new projects cost effective and efficient by only adding an external EEPROM while still using the same mass production chip This single chip integration makes the AU9440 the most cost e...

Страница 6: ...t 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 Runs at 6 Mhz freq...

Страница 7: ...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 shor...

Страница 8: ...APPLICATION BLOCK DIAGRAM 4 This Page Intentionally Left Blank...

Страница 9: ...6 47 48 25 VCC5V XTAL_1 SCANR_1 SCAN_R2 SCANR_3 SCANR_4 SCANR_5 SCANR_6 SCANR_7 SCANR_8 SCANR_9 SCANR_10 SCANR_11 SCANR_12 SCANR_13 SCANR_14 SCANR_15 SCANR_16 SCANR_17 SCANR_18 NC VCC_3V EEP_ENABLE GN...

Страница 10: ...L DOWN Row Scan line 18 SCANR_15 INPUT PULL UP PULL DOWN Row Scan line 19 SCANR_16 INPUT PULL UP PULL DOWN Row Scan line 20 SCANR_17 INPUT PULL UP PULL DOWN Row Scan line 21 SCANR_18 INPUT PULL UP PUL...

Страница 11: ...2 low active open drain 44 USB_DP INPUT OUTPUT USB upstream D 45 USB_DM INPUT OUTPUT USB downstream D 46 GND GROUND 47 EEP_ENABLE Input Enable EEPROM function Hi for EEPROM Lo for internal ROMs 48 VCC...

Страница 12: ...PIN ASSIGNMENT 8 This Page Intentionally Left Blank...

Страница 13: ...SIE Command Processor Suspend Resume And Frame Timer Keyboard Keypad Scan And FIFO Led Control Special Key Cobntrol Logic EEPROM Control 3 3V Voltage Regulator XCVR AU9440 Block Diagram OSC Root Port...

Страница 14: ...8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 SCAN_ROW11 SCAN_COL2 SCAN_ROW7 SCAN_ROW4 D4 LED R3 1M SCAN_COL1 SCAN_COL5 SCAN_ROW12 SCAN_ROW6 SCAN_COL6 C3 0 1UF R1 39 U...

Страница 15: ...Xfer end address 1 config interface endpoint 6 C3 CC RESERVED LoByte Pointer to HUB Class descriptor 0x29 000h ROM addr HiByte Xfer end address 1 8 CC DE LoByte Pointer to Keyboard device descriptor...

Страница 16: ...07 05 81 03 08 00 0A Keyboard endpoint descriptor 57 09 04 01 00 01 03 00 00 00 Added Key interface descriptor interface 1 Class code 0x3 No subclass 60 09 21 10 01 00 01 22 6A 00 Added Key HID 1 1 de...

Страница 17: ...nfiguration DE 05 01 09 80 A1 01 85 02 75 01 95 01 15 00 25 01 09 81 81 06 09 82 81 06 09 83 81 06 75 05 81 01 C0 05 0C 09 01 A1 01 85 03 95 01 75 10 19 00 2A FF 7F 81 00 C0 06 7F FF 09 01 A1 01 85 04...

Страница 18: ...eport Size 6 95 01 Report Count 1 91 01 Output Constant C0 End Collection 148 04 03 09 04 Lang ID array index 0 change string 14C 0C 41 4C 43 4F 52 Leng Str_desc index 1 Manufacturer ALCOR 158 30 55 5...

Страница 19: ...ume Down Row 17 column2 Hotkey ID3 Bookmark Row 17 column1 Hotkey ID3 A1 Consumer Row 16 column8 NA Row 16 column7 Normal Key Ctrl R Row 16 column6 Hotkey ID3 Eject Row 16 column5 Hotkey ID4 User 6 Ro...

Страница 20: ...al Key 7 Home Row 11 column2 Normal Key F11 Row 11 column1 Normal Key Delete Row 10 column8 Normal Key Row 10 column7 Normal Key Row 10 column6 Normal Key 0 Ins Row 10 column5 Normal Key 2 Row 10 colu...

Страница 21: ...Y Row 5 column3 Normal Key U Row 5 column2 Normal Key 7 Row 5 column1 Normal Key 6 Row 4 column 8 Normal Key B Row 4 column 7 Normal Key V Row 4 column6 Normal Key G Row 4 column5 Normal Key F Row 4 c...

Страница 22: ...SYSTEM ARCHITECTURE AND REFERENCE DESIGN 18 This Page Intentionally Left Blank...

Страница 23: ...ow current no pull up or pull down 1 1 A IIH Input high current no pull up or pull down 1 1 A IOZ Tri state leakage current 10 10 A CIN Input capacitance 5 F COUT Output capacitance 5 F CBID Bi direct...

Страница 24: ...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 poi...

Страница 25: ...y sudden application of a high voltage supplied by a 100 PF capacitor through 1 5 Kohm resistance Machine Model stresses devices by sudden application of a high voltage supplied by a 200 PF capacitor...

Страница 26: ...the DUT was biased for 0 5 seconds If neither the PUT current supply nor the device current supply reached the predefined limit DUT 0 mA Icc 100 mA then the voltage was increased by 0 1 Volts and the...

Страница 27: ...ce V Supply Icc Measurement Test Circuit Negative Input Output Overvoltage Overcurrent 1 Source Vcc DUT GND mA Untested Output Open Circuit All Input Tied to V supply V Supply Icc Measurement Supply V...

Страница 28: ...ELECTRICAL CHARACTERISTICS 24 This Page Intentionally Left Blank...

Страница 29: ...MECHANICAL INFORMATION 25 6 0 Mechanical Information 6 1 48 SSOP Outline Drawing...

Страница 30: ...MECHANICAL INFORMATION 26 6 2 48 DIP Outline Drawing...