CN203480507U - USB interface equipment - Google Patents
USB interface equipment Download PDFInfo
- Publication number
- CN203480507U CN203480507U CN201320443173.1U CN201320443173U CN203480507U CN 203480507 U CN203480507 U CN 203480507U CN 201320443173 U CN201320443173 U CN 201320443173U CN 203480507 U CN203480507 U CN 203480507U
- Authority
- CN
- China
- Prior art keywords
- usb
- transceiver
- sie
- module
- interface equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Information Transfer Systems (AREA)
Abstract
The utility model discloses and provides USB (Universal Serial Bus) interface equipment which can provide a plurality of USB sockets, is low in cost and is simple for circuit implementation. The USB interface equipment comprises a main control chip and a plurality of USB sockets; the main control chip is provided with a plurality of USB transceivers, a signal multiplexer, an SIE (Serial Interface Engine) module and a data storage; the number of the USB transceivers is consistent with that of the USB sockets; each USB socket is respectively and correspondingly connected with one USB transceiver; the USB transceivers are all connected with the SIE module by the signal multiplexer; the data storage is connected with the SIE module. The USB interface equipment can be applied to the field of USB equipment.
Description
Technical field
The utility model relates to a kind of USB interface technology, relates in particular to a kind of USB interface equipment with a plurality of sockets.
Background technology
Along with the support of personal computer to USB, the various application of USB are arisen at the historic moment.In field of consumer electronics, the appearance of MP3, on-vehicle player, radio, electronic toy, navigating instrument etc., has enriched the scope that USB applies greatly.At present, product on the market generally only has a USB interface, can not connect a plurality of USB device simultaneously; In addition, USB interface also can be used as charging inlet conventionally, if charge power supply and external USB data equipment are two equipment independently, just can not use charging and two functions of data communication simultaneously.So having the product of two and above USB interface will enjoy great popularity.The conventional implementation method of current most USB interface is to use to have the control chip of a plurality of independently USB modules, or uses the chip of a plurality of USB of having modules.The production cost of chip or complete machine is just higher like this.Fig. 1 is existing single USB device structural representation, and this equipment comprises a SIE module (serial interface engine), a USB PHY(USB transceiver), this equipment can only be realized the communication of a USB interface.Fig. 2 is existing two USB device structural representations, and this equipment comprises two SIE modules, two USB PHY(USB transceivers), this equipment can be realized the communication of two USB interface, but two SIE module chip occupying area are larger, and production cost is higher.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of a plurality of USB socket can be provided, and cost is low, circuit is realized simple USB interface equipment.
The technical scheme that the utility model adopts is: the utility model comprises main control chip and USB socket, the number of described USB socket is several, on described main control chip, be provided with some USB transceivers, signal MUX, SIE module and data-carrier store, the number of described USB transceiver is consistent with the number of described USB socket, described in each, USB socket is connected respectively a described USB transceiver, described in several, USB transceiver is all connected with described SIE module by described signal MUX, described data-carrier store is connected with described SIE module.
On described USB transceiver, be provided with DP pin and DM pin, described DP pin is connected with described USB socket respectively with described DM pin.
Described SIE module has the function as usb host or USB slave.
Described USB transceiver has the function as USB slave or usb host.
Between described USB transceiver and described signal MUX, be all connected by data bus between described signal MUX and described SIE module.
The beneficial effects of the utility model are: because the utility model comprises main control chip and USB socket, the number of described USB socket is several, on described main control chip, be provided with some USB transceivers, signal MUX, SIE module and data-carrier store, the number of described USB transceiver is consistent with the number of described USB socket, described in each, USB socket is connected respectively a described USB transceiver, described in several, USB transceiver is all connected with described SIE module by described signal MUX, described data-carrier store is connected with described SIE module, so, several USB transceivers in the utility model share a SIE module by described signal MUX, thereby without respectively each USB transceiver being distinguished to corresponding SIE module and corresponding data-carrier store, main control chip area is reduced, and circuit is realized simple, reduced production cost.
Accompanying drawing explanation
Fig. 1 is the existing structural representation that possesses single USB interface equipment;
Fig. 2 is the existing structural representation that possesses two USB interface equipment;
Fig. 3 is easy structure schematic diagram of the present utility model;
Fig. 4 is that the utility model is as the structural representation of USB slave;
Fig. 5 is that the utility model is as the first structural representation of usb host;
Fig. 6 is that the utility model is as the second structural representation of usb host.
Embodiment
As shown in Figure 3, in the present embodiment, the utility model comprises: main control chip, two USB socket (USB socket 1 and USB socket 2), described main control chip comprises two USB transceivers (PHY1 and PHY2), a signal MUX, a SIE module (being serial interface engine) and a data-carrier store, described two USB transceivers are connected with SIE module by signal MUX, and described data-carrier store is connected with SIE module.Described SIE module and described USB transceiver all have the function as usb host or USB slave; The USB transceiver that described signal selecting circuit is used for mating work at present state.
Suppose that two USB interface in the present embodiment connect respectively computer (PC) and USB flash disk.As shown in Figure 3, USB transceiver (PHY1) is connected with PC by USB socket 1, and USB transceiver (PHY2) is connected with USB flash disk by USB socket 2.
1, when this USB interface equipment is made USB slave, as shown in Figure 4, signal MUX gating SIE module is communicated by letter with USB PHY1, SIE module and USB transceiver (PHY1) carry out information interaction by multiple signals selector switch, the control signal of SIE module and the data on data bus are selected and recommended USB transceiver (PHY1) by signal MUX, and be connected to USB socket 1 by DP1 pin and DM1 pin, realize with PC between communicate by letter, status signal and the data on data bus of USB transceiver (PHY1) are are also selected and recommended SIE module by signal MUX, SIE module is carried out information interaction with data-carrier store again, in SIE module and USB transceiver (PHY1) information interactive process, signal MUX will suspend SIE module and USB transceiver (PHY2) carries out information interaction.
2, when this USB interface equipment is made usb host, as shown in Figure 5 and Figure 6, USB transceiver (PHY1) is connected with PC by USB socket 1, USB transceiver (PHY2) is connected with USB flash disk by USB socket 2, signal MUX gating SIE module is communicated by letter with USB transceiver (PHY2), SIE module and USB transceiver (PHY2) carry out information interaction by signal MUX, the control signal of SIE module and the data on data bus are selected and recommended USB transceiver (PHY2) by signal MUX, and be connected to USB socket 2 by DP2 pin and DM2 pin, realize with USB flash disk between communicate by letter, status signal and the data on data bus of USB transceiver (PHY2) are are also selected and recommended SIE module by signal MUX, SIE module is carried out information interaction with data-carrier store again, in SIE module and USB transceiver (PHY2) information interactive process, signal MUX will suspend SIE module and USB transceiver (PHY1) carries out information interaction, but now PC can charge by 1 pair of this equipment of USB socket.
Furthermore, the utility model also can expand to the USB socket of three and above number, increases selection signal line and the selector switch number of selector switch simultaneously, can realize the USB interface of three and above number.
The utility model can be applicable to USB device field.
Claims (5)
1. a USB interface equipment, comprise main control chip and USB socket, it is characterized in that: the number of described USB socket is several, on described main control chip, be provided with some USB transceivers, signal MUX, SIE module and data-carrier store, the number of described USB transceiver is consistent with the number of described USB socket, described in each, USB socket is connected respectively a described USB transceiver, described in several, USB transceiver is all connected with described SIE module by described signal MUX, and described data-carrier store is connected with described SIE module.
2. a kind of USB interface equipment according to claim 1, is characterized in that: on described USB transceiver, be provided with DP pin and DM pin, described DP pin is connected with described USB socket respectively with described DM pin.
3. a kind of USB interface equipment according to claim 1, is characterized in that: described SIE module has the function as usb host or USB slave.
4. a kind of USB interface equipment according to claim 1, is characterized in that: described USB transceiver has the function as USB slave or usb host.
5. according to a kind of USB interface equipment described in claim 1 to 4 any one, it is characterized in that: between described USB transceiver and described signal MUX, be all connected by data bus between described signal MUX and described SIE module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443173.1U CN203480507U (en) | 2013-07-24 | 2013-07-24 | USB interface equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443173.1U CN203480507U (en) | 2013-07-24 | 2013-07-24 | USB interface equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480507U true CN203480507U (en) | 2014-03-12 |
Family
ID=50228800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320443173.1U Expired - Lifetime CN203480507U (en) | 2013-07-24 | 2013-07-24 | USB interface equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203480507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023560A (en) * | 2015-07-08 | 2015-11-04 | 武汉时代华声科技有限公司 | MIDI adapter and MIDI communication system |
-
2013
- 2013-07-24 CN CN201320443173.1U patent/CN203480507U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023560A (en) * | 2015-07-08 | 2015-11-04 | 武汉时代华声科技有限公司 | MIDI adapter and MIDI communication system |
| CN105023560B (en) * | 2015-07-08 | 2019-08-09 | 武汉时代华声科技有限公司 | MIDI adapter and MIDI communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202134745U (en) | Multifunctional USB OTG data line | |
| CN103616935A (en) | Embedded computer mainboard | |
| CN206100141U (en) | Cell -phone protective sheath with a plurality of bayonet joints | |
| CN203480507U (en) | USB interface equipment | |
| CN202512565U (en) | IOBOX board | |
| CN202887106U (en) | Novel multifunctional computer keyboard | |
| CN201331725Y (en) | Whole reinforcement computer having multibus circuit board card | |
| CN205334377U (en) | Wired keyboard of changeable bluetooth mode | |
| CN202694223U (en) | Multifunctional adapter board | |
| CN201877126U (en) | U disk with functions of USB (universal serial bus)-HUB | |
| CN202383656U (en) | Storage device and main unit connecting seat connected with same | |
| CN202551030U (en) | Bluetooth adapter and Bluetooth communication system | |
| CN204480294U (en) | A kind of Cloud Server storage card | |
| CN203351911U (en) | USB line system | |
| CN202948725U (en) | Data switching box with Bluetooth function | |
| CN202372978U (en) | NLAS323 chip-based communication module | |
| CN203026064U (en) | Light-emitting diode (LED) display chest card | |
| CN208985149U (en) | A kind of configuration device of multipath I 2 C interface device | |
| CN202771432U (en) | Wireless card reader and wireless mobile hard disk box | |
| CN201298228Y (en) | Multi-bus circuit board | |
| CN202602026U (en) | Connector | |
| CN202384011U (en) | Universal serial bus (USB) flash disk | |
| CN207867494U (en) | A kind of data box based on USBHUB technologies | |
| CN2657085Y (en) | Multipurpose USB equipment | |
| CN201946315U (en) | Novel USB (Universal Serial Bus) flash disk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |