CN1558320A - Multifunctional input-output system - Google Patents
Multifunctional input-output system Download PDFInfo
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- CN1558320A CN1558320A CNA2004100005923A CN200410000592A CN1558320A CN 1558320 A CN1558320 A CN 1558320A CN A2004100005923 A CNA2004100005923 A CN A2004100005923A CN 200410000592 A CN200410000592 A CN 200410000592A CN 1558320 A CN1558320 A CN 1558320A
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Abstract
The present invention relates to I/O system, and is especially one kind of multifunctional I/O system. The multifunctional I/O system includes several I/O devices with several data pins and address pins; one control chip including several controllers corresponding to the I/O devices, one multiplexer, one arbitrator and several data pins and address pins; and address and data bus with several signal wires, which are connected to the corresponding data pins and address pins. The data pins and address pins in the I/O chips may be connected to proper signal wires in the address and data bus and matched with corresponding device via the multiplexer for data transmission with one application system.
Description
Technical field
The present invention relates to a kind of input-output system, particularly a kind of multi-functional input-output system.
Background technology
Along with the high development of Information of Science and Technology, the function of information product from strength to strength, its operation is more and more convenient and the utilization aspect is also more and more vast.To such an extent as to many audio-visual devices, communication apparatus even electrical home appliances etc. have also more or less added the interface of part information processing operation or exchange of information.Information transmission and processing between various different devices and the equipment for convenience, each device or equipment regular meeting are provided with the usefulness of various input-output unit funding material transfers or transmission.
At present, the industry mode of normal utilization utilizes storage card to store data exactly, can be at any time storage card be taken out and in order to doing exchange of information, or the data in the storage card is deposited in the computer, utilize computer further to calculate or handle with other devices or information equipment.
Because storage card is of a great variety, the specification of various storage cards and the interface of transmission are also inequality, for different storing card can be used on same information device, suitable read-write equipment must be set on information device, use the data on binding and the various storage cards of access.Part manufacturer is integrated in the control chip of different storing card on one circuit board, makes it to become a multi-functional card reader, and its circuit structure as shown in Figure 1.
It is mainly constructed is to include: one first slot 151, in order to one first storage card 141 of pegging graft; One second slot 153 is in order to one second storage card 143 of pegging graft; One the 3rd slot 155 is in order to one the 3rd storage card 145 of pegging graft; And a control chip 12, can connect each storage card by each slot; Computer 13 then can utilize this control chip each storage card to be carried out the action of access.
Wherein, first slot 151 cooperates the specification of first storage card 141 and is provided with data contact D[i:0] and address contact A[p:0], can be respectively and the data pin dat[i:0 of first storage card 141] and address pin add[p:0] corresponding connection, each data contact and address contact are connected to first controller 121 in the control chip 12 with first data bus 161 be made up of i+1 bar signal line and by first address bus 181 that p+1 bar signal line is formed respectively; 153 of second slots are provided with data contact D[j:0] and address contact A[q:0], respectively with second data bus 163 that includes j+1 bar signal line and include second controller 123 that second address bus 183 of p+1 bar signal line connects in the control chips 12, each data contact and address contact can be respectively and the data pin dat[j:0 of second storage card 143] and address pin add[q:0] corresponding connection; The 3rd slot 155 then is provided with data contact D[k:0] and address contact A[r:0], respectively with the 3rd data bus 165 that includes k+1 bar signal line and include the 3rd controller 125 that the 3rd address bus 185 of r+1 bar signal line connects in the control chips 12, each data contact and address contact can be respectively and the data pin dat[j:0 of the 3rd storage card 143] and address pin add[q:0] corresponding connection.
Still be provided with a moderator 129 in the control chip 12, connect first controller 121, second controller 123 and the 3rd controller 125 respectively.In addition, each storage card still respectively is provided with an activation pin CE1, CE2 and CE3, is connected to moderator 129 in the control chip 12 with the first enable signal line 191, the second enable signal line 193 and the 3rd enable signal line 195 respectively.This moderator 129 can be according to the order of computer 13, and the storage card and the corresponding controller thereof of its desire access of activation (enable) by the enable signal line of correspondence are simultaneously with other storage cards and other controller forbidden energy (disable).So, computer 13 can carry out the action of access by the control chip in the card reader 12 to the storage card of various different size.
Utilize above-mentioned technology, though can make computer reach the various different purposes of advising storage cards of access, yet, for corresponding connection with various storage card can achieve the goal just this control chip 12 must be provided with very many pins.And pin its manufacturing cost is high more more at most, simultaneously control chip also needs bigger area just can hold so many pin.And, connect a large amount of signal line between control chip 12 each pin and each slot contact, not only take areas a large amount of on the circuit board, and the arrangement of its wiring (layout) design also is practitioner's a puzzlement greatly.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of multi-functional input-output system that reduces pin count, the reduction cost of manufacture of control chip and reduce the required area of circuit.
Above-mentioned purpose of the present invention is realized by following technical scheme.
Scheme one
A kind of multi-functional input-output system is characterized in that including:
A plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins and a plurality of address pin;
One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data pins; And
One address data bus includes many signal line, and is corresponding respectively and be connected in each address data pin of control chip;
Wherein, the data pin of each input-output unit is connected signal line suitable in the address data bus respectively with the address pin, uses with control chip and reaches electric connection.
Described multi-functional input-output system is characterized in that: this multiplexer still is provided with a signal corresponding intrument.
Described multi-functional input-output system is characterized in that: this signal corresponding intrument is implemented with a circuit form.
Described multi-functional input-output system is characterized in that: this signal corresponding intrument is one to store the storer of a signal corresponding tables.
Described multi-functional input-output system is characterized in that: this storer is to select can erase one of them of formula ROM (read-only memory) and non-volatility memorizer of flash memory, electronics.
Described multi-functional input-output system is characterized in that: each input-output unit is chosen as one of them of Compact Flash, SM storage card, MS storage card, SD storage card, MMC storage card, NAND flash memory cards, NOR flash memory cards, USB device, IDE device arranged side by side, tandem IDE device, ROM (read-only memory), the formula of can erasing ROM (read-only memory) and general I/O chip respectively.
Scheme two
A kind of multi-functional input-output system is characterized in that including:
A plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins, a plurality of address pin and at least one control pin;
One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data control pins; And
One address data control bus includes many signal line, and is corresponding respectively and be connected in each address data control pin of control chip;
Wherein, the data pin of each input-output unit, address pin and control pin connect suitable signal line in the address data control bus respectively, use with control chip and reach electric connection.
Described multi-functional input-output system is characterized in that: this multiplexer still is provided with a signal corresponding intrument.
Described multi-functional input-output system is characterized in that: this signal corresponding intrument is to implement with a circuit form.
Described multi-functional input-output system is characterized in that: this signal corresponding intrument is one to store the storer of a signal corresponding tables.
Described multi-functional input-output system is characterized in that: this storer is selected can erase one of them of formula ROM (read-only memory) and non-volatility memorizer of flash memory, electronics.
Described multi-functional input-output system is characterized in that: each input-output unit is chosen as one of them of Compact Flash, SM storage card, MS storage card, SD storage card, MMC storage card, NAND flash memory cards, NOR flash memory cards, USB device, IDE device arranged side by side, tandem IDE device, ROM (read-only memory), the formula of can erasing ROM (read-only memory) and general I/O chip respectively.
The invention provides a kind of multi-functional input-output system, it mainly includes: a plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins and a plurality of address pin; One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data pins; And an address data bus, include many signal line, corresponding respectively and be connected in each address data pin of control chip; Wherein, the data pin of each input-output unit is to be connected signal line suitable in the address data bus respectively with the address pin, uses with control chip and reaches electric connection, not only can make things convenient for the dealer to connect up, and effectively reduces the required area of wiring.
In addition, a kind of multi-functional input-output system provided by the invention, it mainly includes: a plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins, a plurality of address pin and at least one control pin; One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data control pins; And an address data control bus, include many signal line, corresponding respectively and be connected in each address data control pin of control chip; Wherein, the data pin of each input and output loading amount, address pin and control pin connect suitable signal line in the address data control bus respectively, use with control chip and reach electric connection, not only make things convenient for the dealer to connect up, and effectively reduce the required area of wiring.
The invention has the advantages that:
1, utilizes a multiplexer is set in the control chip, and can make various input-output unit be connected to the same group of pins of control chip, can reduce the pin count of control chip and reduce cost of manufacture.
2, still be provided with a signal corresponding intrument in its multiplexer, can make each pin of each input-output unit each pin, can further reduce the required area of circuit according to its optimal control chip that is linked in sequence.
For feature of the present invention, structure and the effect reached are had further understanding and understanding, careful assistant describe in detail with preferred embodiment and conjunction with figs. as after.
Description of drawings
Fig. 1 is a circuit box synoptic diagram of commonly using multi-functional card reader.
Fig. 2 is the block schematic diagram of a preferred embodiment of the present invention.
Fig. 3 is the block schematic diagram of another embodiment of the present invention.
Embodiment
At first, seeing also Fig. 2, is the block schematic diagram of a preferred embodiment of the present invention.As shown in the figure, multi-functional input-output system of the present invention consists predominantly of a plurality of input-output units, a control chip 22 and an address data bus 26.System with three input-output units is an example, then these a plurality of input-output units include first input-output unit 241, second input-output unit 243 and the 3rd input-output unit 245, and each input-output unit is respectively equipped with a plurality of data pins and a plurality of address pin.Wherein first input-output unit 241 is provided with data pin dat[i:0], and address pin add[p:0]; Second input-output unit is provided with data pin dat[j:0], and address pin add[q:0]; The 3rd input-output unit then is provided with data pin dat[k:0], and address pin add[r:0].
Be provided with first controller 221, second controller 223 and the 3rd controller 225 that correspond respectively to first input-output unit 241, second input-output unit 243 and the 3rd input-output unit 245 in the control chip 22, each controller is connected to the address data pin ad[m:0 of control chip 22 by a multiplexer 227], address data pin ad[m:0] then include AD[m:0 via one] and etc. the m+1 bar connect the data pin and the address pin of each input-output unit corresponding to the address data bus 26 of the signal line of each address data pin.
During system acting, be to utilize moderator 229 arbitrations that connect multiplexer 227 and each controller respectively, use be decided by to obtain control chip 22 address data pin ad[m:0 by first controller 221, second controller 223 or the 3rd controller 225 by multiplexer 227 in the time interval] the right to use.This moderator 229 can be connected first input-output unit 241, second input-output unit 243 and the 3rd input-output unit 245 respectively with the first enable signal line 291, the second enable signal line 293 and the 3rd enable signal line 295 via activation pin CE1, CE2 and the CE3 of control chip 22 simultaneously, can be when each controller be obtained the address data pin right to use, with its pairing input-output unit activation (enable), other input-output units then give forbidden energy (disable) simultaneously.So can make application system 23,, its specified input-output unit be carried out the action of access by this control chip 22 as computer or other information devices.And the address data pin of the possible maximum quantity of an input-output unit only need be set on the control chip 22, and can reduce the required pin number of control chip 22 in a large number, dwindle the area of control chip 22 and save its cost of manufacture.
In above-mentioned multi-functional input-output system, still a signal corresponding intrument 28 can be set in multiplexer 227.This signal corresponding intrument 28 can preestablish each the data pin of each input-output unit and the corresponded manner of each address pin and control chip 22 each address data pin, and each input-output unit then is connected in address data bus 26 corresponding signal line with each data pin with each address pin according to the corresponded manner that sets in the signal corresponding intrument 28.That is we can be as first input-output unit 241 among the figure, with data pin dat[i:0], address pin add[p:0] connect the signal line AD[i+p+1:0 in the address data bus 26 successively]; Or as second input-output unit 243, with data pin dat[j:0], address pin add[q:0] connect signal line AD[j+p+1:0 in the address data bus 26 according to reverse order]; Or as the 3rd input-output unit 245, with address pin add[q:0] connect address data pin AAD[r:0 successively], data pin dat[k:0] then connect address data pin AD[r+k+1:0 successively] or the like.The spatial disposition mode of its each device or the corresponded manner that other demands are arranged its signal can be complied with by system, so, not only the wiring (layout) of system can be simplified, can significantly reduce the required area of wiring simultaneously, accord with people for the compact requirement of information product.
Above-mentioned signal corresponding intrument 28 can be selected to implement with circuit mode, and directly the corresponded manner switching mode with circuit in multiplexer with each signal realizes.This signal corresponding intrument 28 also may be selected to be flash memory (flash memory), electronics formula ROM (read-only memory) (the electrically erasableprogrammable read-only memory that can erase; EEPROM) or non-volatility memorizer (non-volatilerandom access memory; NVRAM) and in storer, store a signal corresponding tables, utilize this signal corresponding tables and can learn the corresponding relation of each address data pin and each each pin of input-output unit.And in this embodiment, the signal corresponding tables in the storer still can be revised according to the demand additions and deletions of system, makes system design have bigger elasticity.
At last, seeing also Fig. 3, is the block schematic diagram of another embodiment of the present invention.As shown in the figure, its main framework and embodiment illustrated in fig. 2 roughly the same, just each input-output unit 341,343 and 345 still can include at least one control pin, as the control pin com[x:0 of first input-output unit 341], the control pin com[y:0 of second input-output unit 343] and the control pin com[z:0 of the 3rd input-output unit 345].Control chip 32 is provided with a plurality of address data control pin add[m:0], and utilize include many signal line ADC[m:0] address data control bus 36 be connected to each input-output unit.
In the present embodiment, signal corresponding intrument 38 can also comprise the control pin of each input-output unit and the corresponding relation of control chip 32 address data control pin come in, and so will make the wires design of entire system have bigger elasticity.
Multi-functional input-output system of the present invention regardless of applying to the structure of card reader or it being integrated in the computer motherboard, all can be brought into play the advantage of its height cloth linear elasticity and the system of saving area.This system is applicable to various input-output unit, as CF (Compact Flash) storage card, SM (Smart Media) storage card, MS (Memory Stick) storage card, SD (Secured Digital) storage card, MMC (MultiMedia Card) storage card, NAND flash memory cards, NOR flash memory cards, USB device, (parallel) IDE device arranged side by side, tandem (serial) IDE device, ROM (read-only memory) (ROM), the formula of can erasing ROM (read-only memory) (EEPROM) and general I/O chip (General-Purpose I/O) or the like.
In sum, the invention relates to a kind of input-output system when knowing, especially refer to a kind of multi-functional input-output system, it mainly is to utilize a multiplexer to cooperate a signal corresponding intrument, and the circuit that input-output unit is connected with control chip is freely allocated, effectively the required area of reduction wiring.So the present invention one is rich in novelty, progressive, and can utilize effect for industry, meet in the patent please important document undoubtedly, the whence is submitted application for a patent for invention in accordance with the law, earnestly asks and vouchsafes patent of the present invention early, the true feeling moral just.
The above, it only is a preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, be that all equalizations of doing according to the described shape of the present patent application claim, structure, feature, spirit and method change and modification, all should be included in the claim of the present invention.
Claims (12)
1, a kind of multi-functional input-output system is characterized in that including:
A plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins and a plurality of address pin;
One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data pins; And
One address data bus includes many signal line, and is corresponding respectively and be connected in each address data pin of control chip;
Wherein, the data pin of each input-output unit is connected signal line suitable in the address data bus respectively with the address pin, uses with control chip and reaches electric connection.
2, multi-functional input-output system according to claim 1 is characterized in that: this multiplexer still is provided with a signal corresponding intrument.
3, multi-functional input-output system according to claim 2 is characterized in that: this signal corresponding intrument is implemented with a circuit form.
4, multi-functional input-output system according to claim 2 is characterized in that: this signal corresponding intrument is one to store the storer of a signal corresponding tables.
5, multi-functional input-output system according to claim 4 is characterized in that: this storer is to select can erase one of them of formula ROM (read-only memory) and non-volatility memorizer of flash memory, electronics.
6, multi-functional input-output system according to claim 1 is characterized in that: each input-output unit is chosen as one of them of Compact Flash, SM storage card, MS storage card, SD storage card, MMC storage card, NAND flash memory cards, NOR flash memory cards, USB device, IDE device arranged side by side, tandem IDE device, ROM (read-only memory), the formula of can erasing ROM (read-only memory) and general I/O chip respectively.
7, a kind of multi-functional input-output system is characterized in that including:
A plurality of input-output units, each input-output unit are respectively equipped with a plurality of data pins, a plurality of address pin and at least one control pin;
One control chip includes a plurality of controller, a multiplexer and moderators that correspond respectively to each input-output unit, and is provided with a plurality of address data control pins; And
One address data control bus includes many signal line, and is corresponding respectively and be connected in each address data control pin of control chip;
Wherein, the data pin of each input-output unit, address pin and control pin connect suitable signal line in the address data control bus respectively, use with control chip and reach electric connection.
8, multi-functional input-output system according to claim 7 is characterized in that: this multiplexer still is provided with a signal corresponding intrument.
9, multi-functional input-output system according to claim 8 is characterized in that: this signal corresponding intrument is to implement with a circuit form.
10, multi-functional input-output system according to claim 8 is characterized in that: this signal corresponding intrument is one to store the storer of a signal corresponding tables.
11, multi-functional input-output system according to claim 10 is characterized in that: this storer is selected can erase one of them of formula ROM (read-only memory) and non-volatility memorizer of flash memory, electronics.
12, multi-functional input-output system according to claim 7 is characterized in that: each input-output unit is chosen as one of them of Compact Flash, SM storage card, MS storage card, SD storage card, MMC storage card, NAND flash memory cards, NOR flash memory cards, USB device, IDE device arranged side by side, tandem IDE device, ROM (read-only memory), the formula of can erasing ROM (read-only memory) and general I/O chip respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100005923A CN1558320A (en) | 2004-01-15 | 2004-01-15 | Multifunctional input-output system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100005923A CN1558320A (en) | 2004-01-15 | 2004-01-15 | Multifunctional input-output system |
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| CN1558320A true CN1558320A (en) | 2004-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2004100005923A Pending CN1558320A (en) | 2004-01-15 | 2004-01-15 | Multifunctional input-output system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468378C (en) * | 2005-12-17 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | SPI apparatus telecommunication circuit |
| CN101046796B (en) * | 2006-03-28 | 2010-12-01 | 应广科技股份有限公司 | Integrated circuit chip of multiple micro-controller |
| CN110275856A (en) * | 2018-03-13 | 2019-09-24 | 纬颖科技服务股份有限公司 | Two-way communication method, system and its master controlling terminal device |
-
2004
- 2004-01-15 CN CNA2004100005923A patent/CN1558320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468378C (en) * | 2005-12-17 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | SPI apparatus telecommunication circuit |
| CN101046796B (en) * | 2006-03-28 | 2010-12-01 | 应广科技股份有限公司 | Integrated circuit chip of multiple micro-controller |
| CN110275856A (en) * | 2018-03-13 | 2019-09-24 | 纬颖科技服务股份有限公司 | Two-way communication method, system and its master controlling terminal device |
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