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PDF AU9226 Data sheet ( Hoja de datos )
| Número de pieza | AU9226 | |
| Descripción | USB KVM Controller | |
| Fabricantes | Alcor | |
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AU9226
USB KVM Controller
Technical Reference Manual
1 page  
www.DataSheet4U.com
Table of Contents
1. Introduction ............................................................ 1
1.1 Description...................................................................................1
1.2 Features........................................................................................1
2. Application Block Diagram ................................... 2
3. Pin Assignment ...................................................... 3
4. System Architecture and Reference Design ....... 7
4.1 AU9226 Block Diagram ...............................................................7
5. Hot Key Definition .................................................. 8
5.1 [Scroll]++[Scroll] mode ...............................................................8
5.2 [Caps]++[Caps] mode..................................................................8
5.3 [Num]++[Num] Mode ...................................................................9
5.4 [Ctrl]+[Shift] mode (left-hand side) ............................................9
6. Electrical Characteristics ...................................... 11
6.1 Recommended Operating Conditions .......................................11
6.2 General DC Characteristics ........................................................11
6.3 DC Electrical Characteristics of 3.3V I/O Cells..........................11
6.4 Crystal Oscillator Circuit Setup for Characterization ...............12
6.5 ESD Test Results.........................................................................12
6.6 Latch-Up Test Results.................................................................13
7. Mechanical Information ......................................... 15
7. Abbreviations ......................................................... 16
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5 Page 
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Pin #
25
Pin Name
VCC
26 SWITCHMODE0
27 SWITCHMODE1
28 SWITCHMODE2
29 PS2_CLK
30 PS2_DAT
31 D0
32 D1
33 D2
34 GPO2
35 GPO1
36 GPO0
37 MONITOREN0
38 D3
39 D4
I/O
PWR
I
I
I
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I/O
I/O
Description
3.3V digital input power
Switch mode selection (SW0, SW1) for internal
hotkey mode when SWITCHMODE2='0' and
D2='0', it’s defined as:
(0, 0): [Scroll][Scroll] mode (default)
(0, 1): [Caps Lock][Caps Lock] mode
(1, 0): [Num Lock][Num Lock] mode
(1, 1): [Ctrl][Shift] mode (left-hand side)
Enable external MCU mode (1: Enable; 0:
Disable). Disable is the default setting.
PS2 clock signal (external pull-up required)
PS2 data signal (external pull-up required)
Bit 0 with internal pull-up in address/data bus of
MCU interface when SWITCHMODE2='1' and
EXTCPUMOD='1'. It also provides alternative
functions:
I2C bus SDA signal (slave mode) when
SWITCHMODE2='1' and EXTCPUMOD='0'
I2C bus SDA signal (master mode) when
SWITCHMODE2='0' and D2='1'
Bit 1 with internal pull-up in address/data bus of
MCU interface when SWITCHMODE2='1' and
EXTCPUMOD='1'. It also provides alternative
functions:
I2C bus SCL signal (slave mode) when
SWITCHMODE2='1' and EXTCPUMOD='0'
I2C bus SCL signal (master mode) when
SWITCHMODE2='0' and D2='1'
Bit 2 with internal pull-down in address/data bus of
MCU interface when SWITCHMODE2='1' and
EXTCPUMOD='1'. It also provides alternative
functions:
I2C bus address 0 (slave mode) when
SWITCHMODE2='1' and EXTCPUMOD='0'
I2C bus master mode enable bit when
SWITCHMODE2='0'
General purpose output pin 2
General purpose output pin 1
General purpose output pin 0
Monitor Select : ('0' : Monitor1 Select ; ‘1’ :
Monitor2 Select)
Data3 or Address3 when SWITCHMODE2='1' and
EXTCPUMOD='1'; I2C slave address1 when
SWITCHMODE2='1' and EXTCPUMOD='0';
Data4 or Address4 when SWITCHMODE2='1' and
EXTCPUMOD='1'; I2C slave address2 when
SWITCHMODE2='1' and EXTCPUMOD='0';
AU9226 USB KVM Controller V1.01W
5
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet AU9226.PDF ] | |
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