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PDF AU9462 Data sheet ( Hoja de datos )
| Número de pieza | AU9462 | |
| Descripción | USB Keyboard Hub Controller | |
| Fabricantes | Alcor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AU9462 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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AU9462
USB Keyboard Hub Controller
Technical Reference Manual
Revision 1.1
© 2003 Alcor Micro Corp.
All Rights Reserved
1 page  
1.0 Introduction
1.1 Description
The AU9462 is an integrated low cost single chip USB keyboard controller with 2-port hub.
It supports the 19 x 8 keyboard matrix. Each key can be individually programmed for
standard key code, ACPI or multimedia usage. It also supports combinational key definitions
in the standard 19 x 8 key matrix.
Separated ACPI key is a special feature offered by AU9462. There is one pin dedicated for
all-in-one ACPI function. Fn key function is designed to enable selection of alternative
matrix for small size keyboard application.
The USB descriptors and keyboard matrix can be customized via an optional external 24C08
EEPROM, or directly select the internal ROMs for 8 different model keyboards. This feature
makes customization of new projects cost-effective and efficient by adding an optional
external EEPROM while still using the same chip for mass production. Alcor also provides
utility program to simplify EEPROM contents programming.
The USB downstream ports can be used to connect various USB peripheral devices, such as
USB printer, modem, scanner, camera, mouse and joystick to the system without adding
external glue logic. Multimedia and shortcut keys can support volume control, CD/DVD
Play/Pause, Stop, Eject, Mute and general purpose shortcut keys such as Internet, e-mail and
help.
1.2 Features
• Fully compliant with the Universal Serial Bus Specification, version 1.1
• USB keyboard design is compliant with USB Device Class Definition for Human
Interface Devices (HID), version 1.1
• Built-in 3.3v voltage regulator allows single +5V operating voltage drawing directly from
USB bus
• Intergrated USB full speed transceiver
• Support for 19 x 8 standard key matrix. An Fn pin to select alternative matrix. Each
matrix location is flexible to be used as standard or any report ID & usage page code.
• Support separate ACPI keys. One pin dedicated for all-in-one ACPI function
• Each key can be individually programmed for standard key code, ACPI or multimedia
usage
• Ability to configure the generic LEDs to blink on and off at a rate of 512ms.
• Additional LED1 and LED2.
INTRODUCTION 1
5 Page 
34 SCAN_R12
35 SCAN_R13
36 SCAN_R14
37 SCAN_R15
38 SCAN_R16
39 SCAN_R17
40 SCAN_R18
41 SCAN_R19
42 SCAN_C1
43 SCAN_C2
44 SCAN_C3
45 SCAN_C4
46 SCAN_C5
47 SCAN_C6
48 SCAN_C7
49 SCAN_C8
50 VCCK
51 GNDK
52 BIN
53 EEPENABLE
54 AIN
55 ACPIKEYN
56 FNKEYN
57 E2P_CLK
58 E2P_DATA
59 ROMSEL3
60 SCROLL_LOCK
61 CAPS_LOCK
62 NUM_LOCK
63 LED1
64 LED2
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
Input/ Output, Pull down
INPUT,PULL UP
Input, Pull up
Input, Pull up
Input, Pull up
Input, Pull up
Input, Pull up
Input, Pull up
Input, Pull up
Power
Ground
Input
Input
Input
Input/ Pull up
Input/ Pull up
Input
Input
Input
Output
Output
Output
Output
Output
Row Scan line
Row Scan line
Row Scan line
Row Scan line
Row Scan line
Row Scan line
Row Scan line
Row Scan line
Column Scan line
Column Scan line
Column Scan line
Column Scan line
Column Scan line
Column Scan line
Column Scan line
Column Scan line
Core power
Rotary encoder input ‘B’
Enable EEPROM function,
=0 use internal ROM
=1 use external EEPROM
Rotary encoder input ‘A’
Sleep, Shutdown, Wake up
-(low active)
Selective alternative keyboard
-(low active)
EEPROM CLK/SEL2
EEPROM data/SEL/
ROMSEL3
Scroll_lock LED output-low active-open drain
Cap lock LED – low active
Num lock LED – low active
Additional LED 1 –low active
Additional LED 2 – low active
PIN ASSIGNMENT 7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AU9462.PDF ] | |
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