CN205334465U

CN205334465U - PCIE signal extend system based on PCIESwitch

Info

Publication number: CN205334465U
Application number: CN201521011344.9U
Authority: CN
Inventors: 阮仕涛
Original assignee: Shenzhen Prafly Technology Co Ltd
Current assignee: Shenzhen Prafly Technology Co Ltd
Priority date: 2015-12-08
Filing date: 2015-12-08
Publication date: 2016-06-22
Anticipated expiration: 2025-12-08

Abstract

The utility model discloses a PCIE signal extend system based on PCIESwitch, including the CPU who is used for providing a set of PCIE signal, be connected with CPU, a PCIE switch chip for inciting somebody to action should organize PCIE signal conversion for the PCIE signal output of N1 group, be connected with a PCIE switch chip, a 2nd a PCIE switch chip and N1+N2 -1 PCIE equipment for inciting somebody to action the wherein a set of PCIE signal conversion of PCIE switch chip output organizes PCIE signal output for N2, all the other the N1 -1 PCIE of group signals that a PCIE switch chip will be exported correspond output respectively and give a N1 -1 PCIE equipment, the 2nd PCIE switch chip corresponds output respectively for a N2 PCIE equipment with the N2 PCIE of the group signal of output.

Description

A kind of PCIE signal extension system of Based PC IE Switch

Technical field

This utility model relates to Interface Expanding field, realizes extension PCIE signal interface more particularly, it relates to a kind of, allows equipment provide the PCIE signal extension system of Based PC IESwitch of support to multiple external connecting function simultaneously。

Background technology

PCIE bus is as the local bus of processor system, and main purpose is for connection to the external equipment in processor system。The chipset of general computer and equipment can provide several groups of PCIE signal interfaces, and these interfaces can be used to external network interface card, video card, video and audio data collection card, 3G card, the equipment such as wireless network card。

Fast development along with information technology and the Internet, people are more and more higher to the requirement of computer and mobile device functionality, particularly in the processing system for video that some are large-scale, need equipment can provide the support to several functions simultaneously, and for PCIE signal interface, one PCIE link can only connect a transmission equipment and a reception equipment, the PCIE signal interface limited amount that existing chipset provides, and is therefore badly in need of PCIE signal interface is extended。

Utility model content

The technical problems to be solved in the utility model is in that, for the PCIE signal interface limited amount that the said chip group of prior art provides, the defect of the support of multiple external connecting function can not be provided simultaneously, there is provided one can extend PCIE signal interface, the PCIE signal of the Based PC IESwitch of the support to multiple external connecting function can be provided simultaneously to extend system。

This utility model solves its technical problem and be the technical scheme is that the PCIE signal extension system constructing a kind of Based PC IESwitch, including for providing the CPU of one group of PCIE signal to be connected with described CPU, and one group of PCIE signal for being provided by described CPU is converted to N₁Oneth PCIESwitch chip of group PCIE signal output is connected with a described PCIESwitch chip, and for the one of which PCIE signal of a described PCIESwitch chip output is converted to N₂2nd PCIESwitch chip and N of group PCIE signal output₁+N₂-1 PCIE device, a described PCIESwitch chip is by all the other N of output₁The correspondence output respectively of-1 group PCIE signal is to N₁-1 PCIE device, described 2nd PCIESwitch chip is by the N of output₂The correspondence output respectively of group PCIE signal is to N₂Individual PCIE device。

In the PCIE signal extension system of above-mentioned Based PC IESwitch, the PCIE signal extension system of described Based PC IESwitch also includes for the first power module to a described PCIESwitch chip power supply。

In the PCIE signal extension system of above-mentioned Based PC IESwitch, the PCIE signal extension system of described Based PC IESwitch also includes for the second source module to described 2nd PCIESwitch chip power supply。

In the PCIE signal extension system of above-mentioned Based PC IESwitch, the model of a described PCIESwitch chip is PI7C9X2G608GP, and a described PCIESwitch chip for being converted to five groups of PCIE signal outputs by one group of PCIE signal。

In the PCIE signal extension system of above-mentioned Based PC IESwitch, the model of described 2nd PCIESwitch chip is PI7C9X2G404SL, and described 2nd PCIESwitch chip for being converted to three groups of PCIE signal outputs by one group of PCIE signal。

Implement the PCIE signal extension system of a kind of Based PC IESwitch of the present utility model, have the advantages that by adopting two PCIESwitch chips, one group of PCIE signal that CPU provides is input to a PCIESwitch chip, by the transduction of a PCIESwitch chip, one group of PCIE signal of input is expanded to N₁Group PCIE signal。Again by this N₁One of which PCIE signal in group PCIE signal is again inputted into the 2nd PCIESwitch chip, by the transduction of the 2nd PCIESwitch chip, one group of PCIE signal of input is expanded to N₂Group PCIE signal, the PCIE signal exported in the entire system is finally extended to N₁+N₂-1, it is achieved thereby that the purpose of extension PCIE signal interface。

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the structural representation of the PCIE signal extension system of a kind of Based PC IESwitch of this utility model；

Fig. 2 is the structural representation of the PCIE signal extension System Preferred embodiments of a kind of Based PC IESwitch of this utility model。

Detailed description of the invention

In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing describes detailed description of the invention of the present utility model in detail。

This utility model, in order to extend PCIE link, meets system support to multiple external connecting function simultaneously, mainly through PCIESwitch chip is carried out multiplexing, namely adopts a PCIESwitch chip and the 2nd PCIESwitch chip。And each PCIESwitch chip includes a up going port and multiple down going port respectively, one group of PCIE signal that chipset such as CPU provides is input to the up going port of PCIESwitch chip, the output of its down going port can be passed through and organize PCIE signal more, in this utility model, a certain group of PCIE signal of the oneth PCIESwitch chip output is linked in the 2nd PCIESwitch chip again, realizes the purpose of extension PCIE signal interface with this。

As it is shown in figure 1, be the structural representation of the PCIE signal extension system of a kind of Based PC IESwitch of this utility model。As it can be seen, the PCIE signal extension system of this utility model Based PC IESwitch includes CPU101 and this CPU101 PCIESwitch chip 102 connected and the 2nd PCIESwitch chip 103 that one of them down going port of a PCIESwitch chip 102 is connected and the N that be connected corresponding to the down going port of a PCIESwitch chip 102 and the 2nd PCIESwitch chip 103 respectively₁+N₂-1 PCIE device 104。Wherein: a PCIESwitch chip 102 includes N₁Individual down going port, except one of them down going port is connected to the up going port of the 2nd PCIESwitch chip 103, all the other N₁-1 down going port can connect one to one respectively to N₁-1 PCIE device 104, and the 2nd PCIESwitch chip 103 includes N₂Individual down going port, it is possible to connect one to one respectively to N₂Individual PCIE device 104。

In the PCIE signal extension system of this utility model Based PC IESwitch, being provided one group of PCIE signal to the up going port of a PCIESwitch chip 101 by CPU101, this group PCIE signal is converted to N by a PCIESwitch chip 101₁Exported by its down going port after group PCIE signal。Here the N of PCIESwitch chip 101 output₁Group PCIE signal has any one group of PCIE signal output up going port to the 2nd PCIESwitch chip 103, and all the other N₁-1 group PCIE signal one_to_one corresponding exports to N₁Individual PCIE device 104。And the one group of PCIE signal received from a PCIESwitch chip 102 is again converted to N by the 2nd PCIESwitch chip 103₂Group PCIE signal, is correspondingly outputting to N in its down going port₂Individual PCIE device 104。And these multiple PCIE device 104 can respectively network interface card, video card, video and audio data collection card, the equipment such as wireless network card。

In this utility model, it is also possible to by selecting the mode of operation of PCIESwitch chip, it is determined that the number of physical location in PCIESwitch chip of its up going port and down going port and down going port, the PCIE signal exported the most at last expands to N₁+N₂-1。

As shown in Figure 1, the PCIE signal extension system of this utility model Based PC IESwitch also includes the first power module 105 and second source module 106, first power module 105 is connected with a PCIESwitch chip 102, is used for providing power supply to a PCIESwitch chip 102。Second source module 106 is connected with the 2nd PCIESwitch chip 103, is used for providing power supply to the 2nd PCIESwitch chip 103。

Therefore in this utility model, by adopting two PCIESwitch chips, first one group of PCIE signal that CPU101 provides is input to a PCIESwitch chip 102, by the transduction of a PCIESwitch chip 102, one group of PCIE signal of input is expanded to N₁Group PCIE signal。Again by this N₁One of which PCIE signal in group PCIE signal is again inputted into the 2nd PCIESwitch chip 103, by the transduction of the 2nd PCIESwitch chip 103, one group of PCIE signal of input is expanded to N₂Group PCIE signal, PCIE signal interface is extended to N in the entire system₁+N₂-1, the PCIE signal of corresponding output is also finally extended to N₁+N₂-1 group。

Here the physical address inputting signal can be selected by the mode of operation of PCIESwitch chip, and by selecting the PCIESwitch chip of different model, it is possible to the PCIE signal group number needed for flexible configuration。It addition, for each PCIESwitch chip, by selecting different mode of operations, it is also possible to control the group number of the PCIE signal of output, i.e. the PCIE signal group number of above-mentioned final output and N₁+N₂-1 value and a PCIESwitch chip of selection and the model of the 2nd PCIESwitch chip and the mode of operation of the PCIESwitch chip of respective model is relevant。

Now illustrate, as shown in Figure 2, structural representation for the PCIE signal extension System Preferred embodiments of this utility model Based PC IESwitch, the model of the oneth PCIESwitch chip 102 and the 2nd PCIESwitch chip 103 can arbitrarily select one respectively from three kinds of conversion chips of PI7C9X2G608GP, PI7C9X2G404SL and PI7C9X20303SL, the model of a PCIESwitch chip 102 is preferably PI7C9X2G608GP in the present embodiment, and the model of the 2nd PCIESwitch chip 103 is preferably PI7C9X2G404SL。

Choose the mode of operation of each PCIESwitch chip respectively, a PCIESwitch chip 102 is made to export 5 groups of PCIE signal, respectively PCIE signal 1, PCIE signal 2, PCIE signal 3, PCIE signal 4 and PCIE signal 5, select one of which PCIE signal (in the present embodiment to select the 5th group of PCIE signal and PCIE signal 5, but it is not limited to this) input to the 2nd PCIESwitch chip 103, and front 4 groups of PCIE signal are input in the slot of PCIE × 4, can be used to the external interface module containing 4 network interfaces, i.e. external 4 PCIE device, respectively network interface 1, network interface 2, network interface 3 and network interface 4。Because the 2nd PCIESwitch chip 103 have received the one group of PCIE signal inputted by a PCIESwitch chip 102,2nd PCIESwitch chip 103 is converted into 3 groups of PCIE signal outputs, respectively PCIE signal 6, PCIE signal 7 and PCIE signal 8, these three groups of PCIE signal can be used to external 3 PCIE device, respectively video card, wireless network card, video frequency collection card, as shown in Figure 2。Therefore, this system finally realizes extending 7 PCIE signal interfaces, and 7 groups of PCIE signal of corresponding output, to 7 PCIE device, namely can provide the support to more external connecting functions, the program has been verified by the Baytrail platform of Intel, and PCIE external equipment can normal operation。

This utility model specific works principle is as follows:

Thered is provided one group of PCIE signal to a PCIESwitch chip 102 by CPU101；

Oneth PCIESwitch chip 102 selects its mode of operation, converts this group PCIE signal that CPU101 provides to N₁Group PCIE signal, one of which exports to the 2nd PCIESwitch chip 103, all the other N₁-1 group is correspondingly outputting to N respectively₁-1 PCIE device 104；

2nd PCIESwitch chip 103 selects its mode of operation, and the one of which PCIE signal received from a PCIESwitch chip 102 is again converted into N₂Group PCIE signal, and it is correspondingly outputting to N respectively₂Individual PCIE device 104, final realization exports N₁+N₂-1 group PCIE signal, namely can provide the support to multiple external connecting function。

Compared to prior art, the PCIE signal extension system of this utility model Based PC IESwitch is by adopting two PCIESwitch chips, it is achieved that the purpose of extension PCIE signal interface, such that it is able to provide the support to multiple external connecting function simultaneously。It addition, the mode of operation of the PCIESwitch chip and each PCIESwitch chip by selecting different model, it is possible to the PCIE signal interface number needed for flexible configuration, namely the PCIE signal group number of output。

Above in conjunction with accompanying drawing, embodiment of the present utility model is described; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; without departing under this utility model objective and scope of the claimed protection situation, it may also be made that a lot of form, these belong within protection of the present utility model。

Claims

1. the PCIE signal extension system of a Based PC IESwitch, it is characterised in that include for providing the CPU of one group of PCIE signal to be connected with described CPU, and one group of PCIE signal for being provided by described CPU is converted to N₁Oneth PCIESwitch chip of group PCIE signal output is connected with a described PCIESwitch chip, and for the one of which PCIE signal of a described PCIESwitch chip output is converted to N₂2nd PCIESwitch chip and N of group PCIE signal output₁+N₂-1 PCIE device, a described PCIESwitch chip is by all the other N of output₁The correspondence output respectively of-1 group PCIE signal is to N₁-1 PCIE device, described 2nd PCIESwitch chip is by the N of output₂The correspondence output respectively of group PCIE signal is to N₂Individual PCIE device。

2. the PCIE signal extension system of Based PC IESwitch according to claim 1, it is characterised in that the PCIE signal extension system of described Based PC IESwitch also includes for the first power module to a described PCIESwitch chip power supply。

3. the PCIE signal extension system of Based PC IESwitch according to claim 1, it is characterised in that the PCIE signal extension system of described Based PC IESwitch also includes for the second source module to described 2nd PCIESwitch chip power supply。

4. the PCIE signal extension system of Based PC IESwitch according to claim 1, it is characterized in that, the model of a described PCIESwitch chip is PI7C9X2G608GP, and a described PCIESwitch chip for being converted to five groups of PCIE signal outputs by one group of PCIE signal。

5. the PCIE signal extension system of Based PC IESwitch according to claim 1, it is characterized in that, the model of described 2nd PCIESwitch chip is PI7C9X2G404SL, and described 2nd PCIESwitch chip for being converted to three groups of PCIE signal outputs by one group of PCIE signal。