|
|
PDF VL812 Data sheet ( Hoja de datos )
| Número de pieza | VL812 | |
| Descripción | USB 3.0 Hub Controller | |
| Fabricantes | VIA Labs | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de VL812 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
VL812 USB 3.0 Hub Controller (B1)
Data Sheet
VL812 (B1)
USB 3.0 Hub Controller
December 21, 2012
Revision 0.99
VIA Labs, Inc.
www.via-labs.com
7F, 529-1, Zhongzheng Rd.,
Xindian District, New Taipei City 231 Taiwan
Tel: (886-2) 2218-1838
Fax: (886-2) 2218-8924
Email: [email protected]
-1-
1 page  
VL812 System Overview
VL812 USB 3.0 Hub Controller (B1)
VIA Lab’s VL812 is an advanced 4-port USB 3.0 Hub controller featuring fully-integrated voltage
regulators, low power consumption, and comprehensive USB Charging support. The integrated 5V DC-DC
switching regulator enables VL812 to be powered directly from 5V USB VBus, reducing BOM cost while
offering high power efficiency. The custom in-house USB PHY supports USB power management and
gives VL812 excellent signal integrity characteristics and improved backwards compatibility. VL812 also
features a flexible firmware architecture, providing a framework for custom functions in addition to
in-field updates.
VL812 based hub devices work under Windows, Mac OS X, and various Linux kernels without additional
drivers. Since USB 3.0 hubs do not require additional drivers, VL811+ is also compatible with non-x86
devices and platforms that support USB hub functions such as smart phones, tablets, and set-top boxes.
It is well suited for all USB hub applications such as stand alone USB hubs, Notebook/Ultrabook docking
stations/port-replicators, desktop PC front panel, motherboard on-board hub, and USB hub compound
devices.
With well-planned pinout and a high level of integration, VL812 based devices enjoy easy layout and
simplified BOM. Sideband signal pins are available for showing power enable, over current, GPIO, and
LED status control. The SPI interface supports external EEPROM/Flash ROM which can be updated over
USB. VL812 is available in QFN 76L green package (9x9x0.85 mm) to fit small form-factor designs.
Figure 1 – VL812 Block Diagram
-5-
5 Page 
Side Band signal and Miscellaneous
Pin Name
Pin #
I/O
USBHMBR1
35
O
USBHMBR2
34
O
USBHMBR3
33
O
USBHMBR4
32
O
USBHGRN1
50-
O
USBHGRN2
51
O
USBHGRN3
52
O
USBHGRN4
53
O
USBHPE1#
43
O
USBHPE2B#
42
O
USBHOC1#
45
I
USBHOC2#
44
I
EXTPWRON
47
I
COREPWRDN#
46
O
VBUSDET
31
I
RESET#
54 I
VL812 USB 3.0 Hub Controller (B1)
Signal Description
DP1 Amber (Over Current) LED Indicator and SPISO
share pin. For LED, output high when active and
external 100Kohm pull low required.
DP2 Amber (Over Current) LED Indicator and SPISI
share pin. For LED, output high when active and
external 100Kohm pull low required.
DP3 Amber (Over Crrrent) LED Indicator / SPISCLK
share pin. For LED, output high when active and
external 100Kohm pull low required.
DP4 Amber (Over Current) LED Indicator / SPICS#
share pin. For LED, output high when active and
external 100Kohm pull low required.
DP1 Green (Port Connect) LED Indicator. Output high
when active and external 100Kohm pull low required.
DP2 Green (Port Connect) LED Indicator. Output high
when active and external 100Kohm pull low required.
DP3 Green (Port Connect) LED Indicator. Output high
when active and external 100Kohm pull low required.
DP4 Green (Port Connect) LED Indicator. Output high
when active and external 100Kohm pull low required.
Power Enable for Gangmode Ports
Low: Port Power On.
High: Port Power Off.
Power Enable for USB Charging Port
Low: Port Power On.
High: Port Power Off.
DP1 Over Current Detect
Low: Port Over Current
High: Port Power Normal
DP2 Over Current Detect
Low: Port Over Current
High: Port Power Normal
Upstream Port VBUS Detection for Upstream port
plug-in
Core power down (Reserved for controlling external
core power switch)
5V USB VBus Presence Detect
System reset
Low: Reset
High: Normal Operation
Test Pin
Pin Name
TESTEN
SMCLK
SMDAT
Pin #
57
55
56
I/O
I
I
I/O
Signal Description
Test Mode Enable
Do not connect for normal operation.
Internal pull down.
Low: Normal mode.
High: Test mode.
SMBus clock for debug only. It is not a standard SMBus
interface. Open Drain
SMBus data for debug only. It is not a standard SMBus
interface. Open Drain
- 11 -
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet VL812.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| VL810 | Super-Speed USB Hub Controller | VIA Labs |
| VL810 | Super-Speed USB Hub Controller |  VIA |
| VL811 | USB 3.0 Hub Controller | VIA Labs |
| VL812 | USB 3.0 Hub Controller | VIA Labs |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |