CN2518142Y - Computer backing plate with peripheral device connecting interface main channel extended groove - Google Patents
Computer backing plate with peripheral device connecting interface main channel extended groove Download PDFInfo
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- CN2518142Y CN2518142Y CN 02202119 CN02202119U CN2518142Y CN 2518142 Y CN2518142 Y CN 2518142Y CN 02202119 CN02202119 CN 02202119 CN 02202119 U CN02202119 U CN 02202119U CN 2518142 Y CN2518142 Y CN 2518142Y
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- back board
- computer back
- peripheral device
- bus
- main channel
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Abstract
The utility model relates to a computer back plate with a peripheral device connected with a main channel expanding slot. The computer back plate at least comprises a bus, a logic sharing circuit and a plurality of expanding main channels. The computer back plate can be matched with a central processing unit card with a proper programming output or input system, a bus controller is arranged on the central processing unit card, and the bus is connected with the bus controller. The logic sharing circuit adopts the bus to be connected with the bus controller, a plurality of expanding main channels are produced through a main channel, and a plurality of expanding main channels are connected with the logic sharing circuit to transport data through the bus.
Description
(1) technical field
The Computer back board (Backplane) of the relevant a kind of industrial computer of the utility model, particularly relevant a kind of Computer back board with peripheral device linkage interface (PCI) main channel of expansion.
(2) background technology
Progress along with Information technology, drive whole computer industry fast development, make general PC, notebook computer be widely used in industrial and commercial industry, particularly in manufacturing industry, use industrial computers and peripheral devices thereof in a large number, for example motherboard, display card, presentation card, network card and other Industry Control card, its major function all is treated to the emphasis of design with quick transmission and multiplex (MUX).
Generally speaking, in the application of industrial computer, every industrial computer is equipped with various types of interface card, in order to computing and handle a large amount of data of different types, for example image and speech data etc., and these interface card are in the expansion slot that is installed on the backboard, with transmission and the communication of carrying out data-signal.In the tradition, this type of interface card is that industrial standard system architecture (EISA) bus with peripheral device linkage interface (PCI) bus and expansion is the interface specification of transmission, especially the transfer rate of pci bus is quick than eisa bus, makes pci bus become the standard interface of the internal signal transmission of industrial computer system.
Consult Fig. 1, it is the synoptic diagram of the traditional Computer back board with PCI bridging chip.In traditional industrial computer is used, backboard is because of the restriction of PICMG specification, 4 PCI main channels (Master) can only be arranged, and in order to connect the PCI interface card more than 4, one of them expands and extra PCI subchannel (108a with 4 PCI main channels must to use a PCI bridging chip 106,108b ..., 108x).
The number of PCI main channel expansion slot is subject to the PICMG specification, can only use 4 PCI main channels.If desire increases the number of PCI expansion slot, must additionally use PCI bridging chip 106 to increase the expansion slot of PCI.Yet the increase of PCI bridging chip 106 must make whole cost improve.
Therefore how suitably increasing the quantity of PCI main channel, and reduce making originally of backboard, is the problem of needing solution in the present Computer back board design badly.
(3) utility model content
A purpose of the present utility model provides the Computer back board of a kind of PCI of having main channel expansion slot, and the PCI main channel of expansion is to produce by the assignment of logical circuit.
Another purpose of the utility model provides the Computer back board of a kind of PCI of having main channel expansion slot, and need not to use the PCI bridging chip, to save cost.
For achieving the above object, according to the utility model Computer back board that is applied to the industrial computer system on the one hand, this Computer back board can be used with the central processing unit card of the basic output/input system with suitable planning, be characterized in, this Computer back board comprises at least: a bus is connected in the central processing unit card to make the transmission channel of signal; One assignment of logical circuit utilizes this bus to be connected to this central processing unit card, by several main channels one of them, to produce the main channel of several expansions; And several expansion main channels, be connected in this assignment of logical circuit, carry out data transmission by this bus.
According to the utility model Computer back board that is applied to the industrial computer system on the other hand, this Computer back board can be used with the central processing unit card of the basic output/input system with suitable planning, be characterized in, this Computer back board comprises at least: a peripheral device linkage interface bus, be connected in this central processing unit card, to make the transmission channel of signal; One assignment of logical circuit utilizes this peripheral device linkage interface bus to be connected to this central processing unit card, by several peripheral device linkage interface main channels one of them, to produce the main channel that several peripheral device linkage interfaces expand; And several peripheral device linkage interfaces expansion main channels, be connected in this assignment of logical circuit, to carry out data transmission by this peripheral device linkage interface bus.
Computer back board with PCI main channel expansion slot of the present utility model, by the assignment of logical circuit, the PCI main channel of produce expanding, wherein the PCI main channel of Kuo Chonging is identical with a rank of PCI main channel and need not to use the PCI bridging chip, can significantly save the cost of Computer back board.
For further specifying the purpose of this utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the synoptic diagram of the traditional Computer back board with PCI bridging chip; And
Fig. 2 is the synoptic diagram according to the Computer back board of the PCI of having of the present utility model main channel expansion slot.
(5) embodiment
Computer back board at traditional industrial computer must use the PCI bridging chip to increase the shortcoming of the number of PCI main channel (Master), the utility model provides the Computer back board of a kind of PCI of having main channel expansion slot, be by the assignment of logical circuit, produce the PCI main channel of expanding.And need not to use the PCI bridging chip, and significantly save the cost of Computer back board.Now be described with reference to the accompanying drawings the Computer back board of setting of the present utility model.
At first see also Fig. 2, it is according to the synoptic diagram that the utlity model has the Computer back board 200 of PCI main channel expansion slot.The utlity model has the Computer back board 200 of PCI main channel expansion slot, comprise main channel bus 204, assignment of logical circuit 206 and a plurality of expansions main channel (210a, 210b ..., 210x).This Computer back board 200 can cooperate CPU card (not shown), and to form the industrial computer system, wherein this CPU card comprises central processing unit, storer and bus controller.
In Computer back board 200, main channel bus 204 is to be connected in this bus controller, to make the transmission channel of signal.Assignment of logical circuit 206 is arranged on this Computer back board 200, and utilizes main channel bus 204 to be connected to bus controller, by main channel bus 204, with produce a plurality of expansions main channel (210a, 210b ..., 210x).
In addition, suitably the basic output/input system (BIOS) of planning is arranged on the CPU card, the main channel of expanding in order to identification (210a, 210b ..., 210x).A plurality of expansions main channel (210a, 210b ..., 210x) be connected in assignment of logical circuit 206, to carry out data transmission.
The utility model expands the main channel except utilizing assignment of logical circuit 206, also can be shared with traditional PCI bridging chip.
In the preferred embodiment of the present utility model, assignment of logical circuit 206 mainly is with programmable logic element (Programmable Logic Device, PLD) or other suitable digital circuits form, assignment of logical circuit 206 also can be by basic logic element, for example with door (AND) or door (OR), Sheffer stroke gate (NAND) and rejection gate compositions such as (NOR).Specifically, assignment of logical circuit 206 is to utilize logic element to produce to ask (Request) signal and grant (Grant) signal, to carry out the Control Allocation of pci bus, the feasible PCI main channel of expanding (210a, 210b ... 210x) has identical rank, position grade with PCI main channel bus 204, so that the transfer rate of signal can be equivalent to the direct speed of being sent by central processing unit, do not need bridging chip through PCI, reach the purpose of signal transmission.
In sum, the utility model provides the Computer back board of a kind of PCI of having main channel expansion slot, by the assignment of logical circuit, produces the PCI main channel of expanding.Wherein the PCI main channel of Kuo Chonging is identical with the rank, position of PCI main channel, and need not to use the PCI bridging chip, can significantly save the cost of Computer back board.
The utility model is disclosed as above by preferred embodiment; only be used for helping to understand scheme of the present utility model; non-in order to limit spirit of the present utility model; and the technician who is familiar with this field is after comprehension spirit of the present utility model; in not breaking away from spiritual scope of the present utility model; also can make all variations that is equal to and replace, its scope of patent protection should be as the criterion with appended claim institute restricted portion.
Claims (9)
1. Computer back board that is applied to the industrial computer system, this Computer back board can be used with the central processing unit card of the basic output/input system with suitable planning, it is characterized in that this Computer back board comprises at least:
One bus is connected in the central processing unit card to make the transmission channel of signal;
One assignment of logical circuit utilizes this bus to be connected to this central processing unit card, by several main channels one of them, to produce the main channel of several expansions; And
Several expand the main channel, are connected in this assignment of logical circuit, carry out data transmission by this bus.
2. Computer back board as claimed in claim 1 is characterized in that, this bus is a peripheral device linkage interface bus.
3. Computer back board as claimed in claim 2 more comprises a bridge-set, utilizes this peripheral device linkage interface bus, to form several peripheral device linkage interface subchannels.
4. Computer back board as claimed in claim 1 is characterized in that, this assignment of logical circuit system is made up of programmable logic element.
5. Computer back board as claimed in claim 1 is characterized in that, this assignment of logical circuit be selected from door or door, Sheffer stroke gate, rejection gate with and combination in any.
6. Computer back board that is applied to the industrial computer system, this Computer back board can be used with the central processing unit card of the basic output/input system with suitable planning, it is characterized in that this Computer back board comprises at least:
One peripheral device linkage interface bus is connected in this central processing unit card, to make the transmission channel of signal;
One assignment of logical circuit utilizes this peripheral device linkage interface bus to be connected to this central processing unit card, by several peripheral device linkage interface main channels one of them, to produce the main channel that several peripheral device linkage interfaces expand; And
Several peripheral device linkage interfaces expand the main channel, are connected in this assignment of logical circuit, to carry out data transmission by this peripheral device linkage interface bus.
7. Computer back board as claimed in claim 6 is characterized in that, also comprises a bridge-set, to form several subchannels.
8. Computer back board as claimed in claim 6 is characterized in that, this assignment of logical circuit is made up of programmable logic element.
9. Computer back board as claimed in claim 6 is characterized in that, this assignment of logical circuit be selected from door or door, Sheffer stroke gate, rejection gate with and combination in any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202119 CN2518142Y (en) | 2002-01-15 | 2002-01-15 | Computer backing plate with peripheral device connecting interface main channel extended groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202119 CN2518142Y (en) | 2002-01-15 | 2002-01-15 | Computer backing plate with peripheral device connecting interface main channel extended groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518142Y true CN2518142Y (en) | 2002-10-23 |
Family
ID=33684765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202119 Expired - Fee Related CN2518142Y (en) | 2002-01-15 | 2002-01-15 | Computer backing plate with peripheral device connecting interface main channel extended groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518142Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804465A (en) * | 2019-11-14 | 2021-05-14 | 中强光电股份有限公司 | Expansion module control circuit and operation method thereof and projection device |
-
2002
- 2002-01-15 CN CN 02202119 patent/CN2518142Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112804465A (en) * | 2019-11-14 | 2021-05-14 | 中强光电股份有限公司 | Expansion module control circuit and operation method thereof and projection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021023 |