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PDF AU9432R2 Data sheet ( Hoja de datos )
| Número de pieza | AU9432R2 | |
| Descripción | Multimedia USB Keyboard Hu | |
| Fabricantes | Alcor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AU9432R2 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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AU9432 R2
Multimedia USB Keyboard Hub
Technical Reference Manual
Revision 2.1
1998-2002 Alcor Micro Corp.
All Rights Reserved
1 page  
1.0 Introduction
Description
The AU9432 R2 is an integrated USB keyboard and 2 port hub controller chip. The AU9432
R2 has a built-in default keyboard matrix, so that it can be directly connected to an 18 x 8
keyboard matrix. The keyboard matrix can be customized via an optional external 1024-byte
serial EEPROM. Downstream ports can be used to connect various USB peripheral devices,
such as USB printers, modems, scanners, cameras, mice, and joysticks to the system without
adding external glue logic. It also supports multimedia volume control, CD/DVD Play/Pause,
Stop, Eject, Mute and general purpose shortcut keys such as Internet, email and help.
This single chip integration makes the AU9432 R2 the most cost effective hub/keyboard
solution available in the market.
Features
?? Fully compliant with the Universal Serial Bus Specification, version 1.1
?? USB hub design is compliant with Universal Serial Bus Hub Specification, revision 1.1
?? USB keyboard design is compliant with USB Device Class Definition for Human
Interface Devices (HID), Firmware Specification, version 1.1
?? Single chip integration of USB keyboard, hub, ACPI and multimedia control functions
?? Integrated USB hub supports two bus-powered downstream ports
?? Patent-pending, table-driven SCANTABLE? technology for easy customization to
different keyboard matrix up to 18x8.
?? Support rotary encoder for multimedia volume control
?? Support CD/DVD Play/Pause, Fast Forward, Rewind, Stop, Eject, Mute (up to 24 keys)
?? Additional general purpose keys for internet, email, help…shortcuts, up to 16 keys.
?? Additional 2 general purpose LEDs
?? Support ACPI compliant suspend/shutdown key
?? Built-in 3.3v voltage regulator allows single +5V operating voltage drawing directly from
USB bus. This results in reduced overall system cost.
?? Optional gang-powered control pin for downstream port.
?? Runs at 12Mhz frequency
?? Available in 64-pin LQFP package.
INTRODUCTION
1
5 Page 
40 DP2OVRCUR
41 DP2PWRUP
INPUT,PULL UP
OUTPUT
42 DP1OVRCUR
INPUT,PULL UP
43 LED1
OUTPUT
44 LED2
OUTPUT
45 NUM_LOCK
OUTPUT
46 CAPSLOCK
OUTPUT
47 DESCSELET0 INPUT
48 DESCSELET1 INPUT
49 DESCSELET2 INPUT
50 MODEKEYN
INPUT
51 USB2_DM
INPUT/OUTPUT
52 USB2_DP
INPUT/OUTPUT
53 USB1_DM
INPUT/OUTPUT
54 USB1_DP
INPUT/OUTPUT
55 USB_DM
56 USB_DP
57 VCCAP
58 GNDAP
59 XTAL_2
60 XTAL_1
61 RSTN
62 MUTEKEYN
63 SLEEPKEYN
INPUT/OUTPUT
INPUT/OUTPUT
Analog 3.3V Input
Analog Ground
OUTPUT
INPUT
INPUT
INPUT,PULL UP
INPUT,PULL UP
64 SCROLL_LOCK OUTPUT
50KOhm
8mA
50KOhm
8mA
8mA
16mA
16mA
16mA
16mA
16mA
16mA
16mA
16mA
50KOhm
50KOhm
16mA
enable (gang mode)
Port 2 over current –low
active
Downstream port 2
power enable – low
active
Port 1 over current –low
active
Additional LED 1 – low
active – open drain
Additional LED 2 – low
active – open drain
Num lock LED – low
active – open drain
Cap Lock LED – low
active – open drain
Fn Key
USB downstream port 2
D-
USB downstream port 2
D+
USB downstream port 1
D-
USB downstream port 1
D+
USB upstream D-
USB upstream D+
Analog VCC
Analog ground)
12MHz crystal output
12MHz Crystal input
Reset – low active
Mute key, low active
ACPI
(Sleep/wakeup/power
down) – low active
Scroll_lock LED output –
low active –open drain
PIN ASSIGNMENT
7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AU9432R2.PDF ] | |
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