CN201146049Y - Hardware circuit capable of being compatible a plurality of memories and electrical installation with the same - Google Patents
Hardware circuit capable of being compatible a plurality of memories and electrical installation with the same Download PDFInfo
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- CN201146049Y CN201146049Y CNU2008200170394U CN200820017039U CN201146049Y CN 201146049 Y CN201146049 Y CN 201146049Y CN U2008200170394 U CNU2008200170394 U CN U2008200170394U CN 200820017039 U CN200820017039 U CN 200820017039U CN 201146049 Y CN201146049 Y CN 201146049Y
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- storer
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Abstract
The utility model discloses a hardware circuit which can be compatible with a plurality of memories and a piece of electric equipment which is provided with the hardware circuit. A hardware circuit board is provided with a plurality of memory connecting parts; the connecting point layouts of a plurality of memory connecting parts are respectively corresponding to the memory pin layouts with multiple encapsulating types; wherein, the connecting points which are corresponding to the data transmission pins of the memory are connected with the data transmission terminals corresponding to the main chip which is arranged on the hardware circuit board. In order to save the area of the circuit board, in a plurality of memory connecting parts, the memory connecting parts with small area are arranged inside the memory connecting parts with large area. The hardware circuit structure of the utility model adopts a compatible circuit connecting type, effectively saves the development cost, improves the development efficiency, can use the memory of a plurality of encapsulations and different capacities under the situation that the printing circuit board is not re-fabricated, realizes the effective extension of the memory space of the electric apparatus equipment, and improves the generality of the circuit.
Description
Technical field
The utility model belongs to the hardware circuit board design field, specifically, relates to a kind of hardware circuit board design of compatible polytype storer simultaneously and the electric equipment of using this circuit design.
Background technology
Along with improving constantly of people's living standard, the consumer is also more and more higher to the requirement of tv product, not only requires reliable in quality, appearance and modeling attractive in appearance, more requires televisor cost performance height, feature richness.Increase on the function will certainly make the capacity of program sharply increase, and the cost of televisor raises.Simultaneously because the storage space of system's master chip is quite limited, therefore, must the extension storage space to enrich the televisor function.
Flash memory (Flash Memory) has obtained widespread use with advantage such as its integrated level height, cost be low, easy to use in each electronic product and industry measurement and control system field.In TV set circuit design, the Flash storage speed is fast, volume is little, low in energy consumption and cheap, and can online electricity erasable, information can not lost after power down, therefore becomes the first-selection that the designer is used for extended storage capacity.Present Flash storer can be divided into two kinds of parallel Flash storer and serial Flash storeies.Parallel Flash memory space is big, speed is fast; And the serial Flash memory space is less relatively, but volume is little, and line is simple, can reduce board area, saves cost, improves system reliability.Since mainly come program curing in the television system with Flash, not high to rate request, then comparatively harsh to the area requirements of cost and circuit board, so serial Flash is good selection.In present TV set circuit, articulate EEPROM and each a slice of serial Flash usually in the master chip periphery and be used for store data and master routine, as shown in Figure 1.Various signal sources by each class interface input such as TV, AV, high definition component, HDMI are handled back output through master chip.Wherein EEPROM passes through I
2The C bus is connected with master chip, is used for the storage system data; And serial Flash is used to deposit the working procedure of master chip as the expansion of system memory space.
Adopt serial Flash can effectively save the port resource of master chip, on the basis that does not change original low-cost master chip, be used for connecting other storage chip with saving the port resource that comes out in the master chip, not only realized effective expansion of televisor storage space, also provide the necessary hardware support the enhancing of televisor function.Usually the paster of the serial Flash that adopts is encapsulated as 8SOP and 16SOP, but, existing circuit all is to use wherein a kind of encapsulation, when buying is less than previously used serial Flash in producing in enormous quantities, or can only make printed circuit board (PCB) again at new Flash storer; Use same encapsulation but the bigger serial Flash storer of capacity.These two kinds of methods all have very big drawback: make printed circuit board (PCB) again and can delay tempo of development, reduce development efficiency, be unfavorable for market competition; And use the bigger serial Flash of same envelope capacity can cause the increase of complete machine cost.
The utility model content
The utility model is in order to solve the available circuit plate problem of compatible multiple packing forms storer simultaneously, a kind of brand-new hardware circuit plate structure is provided, can be so that the compatible storer that uses multiple packing forms of circuit board, help saving cost of development, adapt to the restriction of resource better, accelerate tempo of development, improve the utilization factor of circuit board.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of hardware circuit that can compatible multiple storer, hardware circuit board is provided with a plurality of storer connecting portions, and the contact layout of described a plurality of storer connecting portions is corresponding with the storer pin layout of multiple encapsulated type respectively; Wherein, the respective data transfer terminal that is connected the master chip on the described hardware circuit board with the corresponding contact of data transmission pin of storer.
In order further to reach the purpose of design of saving the circuit board area occupied, in described a plurality of storer connecting portions, the storer connecting portion that area is little is arranged on the inside of the big storer connecting portion of area.
Further, in described a plurality of storer connecting portions, with the chip selection signal pin of storer and the corresponding contact of clock input pin respectively with the chip selection signal lead-out terminal and output terminal of clock corresponding connection of son of described master chip, and then the realization master chip is to the selection and the clock control of storer.
In order further to save the port resource of master chip, in the utility model, described storer adopts the serial Flash storer to realize that its data transmission pin comprises data input pin and data output pin; In described storer connecting portion, and data input pin corresponding be connected sub with the data output end of described master chip respectively with the corresponding contact of data output pin with described data input pin.
Further again, described hardware circuit board is provided with two storer connecting portions, respectively the serial Flash storer of corresponding 8 pins and two kinds of encapsulated types of 16 pins; Wherein, be arranged on inside with the corresponding storer connecting portion of described 16 pin Flash storeies with the corresponding storer connecting portion of described 8 pin Flash storeies.In actual application, select wherein according to the circuit actual needs that a kind of Flash storer of encapsulated type is welded on the storer connecting portion corresponding with it, and then realize itself and the communication that is connected of master chip.
Based on above-mentioned hardware circuit, the utility model provides a kind of electric equipment with described hardware circuit again, specifically can be audio-visual equipment such as televisor, DVD or other electronics, measuring and controlling equipment etc.By the corresponding storer connecting portion of a plurality of and multiple encapsulated type storer pin layout is set on the internal hardware circuit board of described electric equipment, thereby realized the compatibility of a circuit board to multiple encapsulated type storer, greatly improve the utilization factor of hardware circuit board, saved cost of development.
Compared with prior art, advantage of the present utility model and good effect are: hardware circuit of the present utility model adopts compatible circuit connecting mode, effectively saved cost of development, improved development efficiency, do not changing original program, do not making again under the situation of printed circuit board (PCB), can use the serial Flash storer of multiple encapsulation, different capabilities, realized effective expansion of televisor storage space, improved the versatility of circuit, provide hardware supported smoothly the enhancing of televisor function and production.Meanwhile, described compatible circuit syndeton realizes being convenient to be transplanted in other similar electric equipments easily, has effectively improved the market adaptability to changes of electric equipment.
After reading the detailed description of the utility model embodiment in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is a system principle diagram of using the storage space expanded circuit of serial Flash storer in the existing televisor;
Fig. 2 is a system principle diagram of using the compatible hardware circuit structure that the utility model proposed in televisor;
Fig. 3 be the utility model propose can compatible two kinds of storeies the topology layout synoptic diagram of hardware circuit board;
Fig. 4 is the circuit catenation principle figure of each functional chip on the hardware circuit board shown in Figure 3.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
The utility model is by setting in advance a plurality of storer connecting portions on hardware circuit board, to adapt to the memory chip of multiple encapsulated type, and will be connected with the corresponding terminal of master chip on the hardware circuit board in advance with the data transmission pin of memory chip and the corresponding contact of chip selection signal pin in described a plurality of storer connecting portions, like this when this hardware circuit board of practical application, just can select wherein a kind of memory chip to be welded on the corresponding with it storer connecting portion according to the actual needs of circuit board, can finish the communication that is connected between memory chip and the master chip, and then realized the Compatibility Design requirement of hardware circuit board to the polytype memory chip, improved the utilization factor of circuit board.
Along with the continuous progress of electronics technology, the tempo of development of televisor is also more and more faster, and except product quality, cost of products and speed to introduce are the key factors that influences the product success or not.Therefore, just should consider Compatibility Design, reduce product development cost, improve development efficiency at the situation of turn of the market development and the change of function at the product development initial stage.
Embodiment one, and referring to shown in Figure 2, present embodiment is the application of the concrete described compatible hardware circuit structure of elaboration of example in tv product with the televisor.
Consider from the angle of simplifying televisor decoding deck structure, among Fig. 2, as the core component of televisor decoding deck circuit---the high integration video frequency processing chip that master chip can adopt a slice to be integrated with multiple functions such as microcontroller, Video Decoder, video processor, analog to digital converter ADC is realized.Described master chip receives the operation instruction signal that the user sends by remote control and keystroke interface, receive vision signal by the interfaces such as tuner, video signal interface, component signal interface, VGA interface and HDMI that are provided with on the televisor from TV station and the input of multiple outside source, after it is carried out analog to digital conversion, video decode and Video processing, and then drive the display circuit output video image.Because the function that master chip will be finished is many and its internal storage space is limited, so, must just can make its function obtain complete application by the external memory space expansion, specifically can adopt the form that connects eeprom memory and Flash storer in the periphery of master chip to realize the master chip expansion of storage capacity.Wherein, master chip passes through I
2The C bus connects eeprom memory, is used for the storage system data; Consider that the master chip port resource is limited, therefore, adopt data output end and data input pin of serial Flash storer connection master chip in the present embodiment, to realize storage to the master chip working procedure.
For compatibility and the versatility that improves the televisor decoding deck, the position of welding serial Flash storer is provided with a plurality of storer connecting portions on decoding deck, and the contact layout of described a plurality of storer connecting portions is corresponding with the serial Flash storer pin layout of multiple encapsulated type respectively.Wherein, with data output pin, data input pin, chip selection signal pin and the corresponding contact of clock input pin of serial Flash storer respectively with corresponding data lead-out terminal, data input pin, chip selection signal lead-out terminal and output terminal of clock corresponding connection of son of described master chip.In technician's performance history, can specifically select wherein a kind of serial Flash storer to be welded on the corresponding with it storer connecting portion, chip selection signal by master chip output is chosen described serial Flash storer, can realize the real time access of master chip to data in the described serial Flash storer.
For convenience of description, and from the concrete application point consideration of present tv product to the serial Flash storer, present embodiment is the concrete specific design structure of setting forth described compatible hardware circuit board of example with the serial Flash storer of two kinds of encapsulated types.
Referring to shown in Figure 3, described two kinds of serial Flash storeies are that example specifies with the serial Flash storer U701 of the 8SOP of widespread usage in present tv product encapsulation and the serial Flash storer U702 of 16SOP encapsulation, and storer connecting portion N701, the N702 corresponding with it is according to the pin layout structure of two kinds of Flash storeies its contact that distributes.Wherein, in storer connecting portion N701, include 8 contacts, and be the left-right symmetric distribution, be used to weld the serial Flash storer U701 of 8SOP encapsulation; In storer connecting portion N702, include 16 contacts, also and be left-right symmetric and distribute, be used to weld the serial Flash storer U702 of 16SOP encapsulation.Because the area of the serial Flash storer U702 of 16SOP encapsulation is more a lot of greatly than the serial Flash storer U701 of 8SOP encapsulation, consider from the angle of economize on hardware board area, present embodiment is arranged on storer connecting portion N701 the inside of storer connecting portion N702, promptly when making PCB, storer connecting portion N701 is drawn in the inside of storer connecting portion N702, so only need take on the hardware circuit board and can realize the selection of two kinds of Flash storeies is welded with the sizable zone of serial Flash storer U702 area of 16SOP encapsulation, both realize the compatibility of two kinds of serial FLASHs on the circuit, and also can therefore not increase the composing area of pcb board.The concrete syndeton of its pin is referring to circuit theory diagrams shown in Figure 4.
Among Fig. 4, two I/O mouth PDD0, PDD1 that utilize master chip are as data input pin be connected with the data input pin is corresponding with the data output pin of serial Flash storer U701, U702 respectively with data output end (actual being meant and the corresponding welded contact of the pin positions of storer on circuit board, below all be described with the form of storer).Wherein, the data output pin of Flash storer U701 is the 2nd pin, and the data input pin is the 5th pin.The data output pin of Flash storer U702 is the 8th pin, and the data input pin is the 15th pin.Master chip sends clock signal by its clock lead-out terminal POOE, is connected to the clock input pin (the 6th pin) of storer U701 and the clock input pin (the 16th pin) of storer U702; And utilize its another road I/O mouth POCE0 to be connected to the chip selection signal pin (the 1st pin) of storer U701 and the chip selection signal pin (the 7th pin) of storer U702 as the chip selection signal lead-out terminal.In addition, in order to realize the control that resets to serial Flash storer U701, U702, also be provided with reset circuit on described hardware circuit board, present embodiment has specifically been enumerated wherein a kind of circuit composition form, adopts a NPN type triode Q701 to cooperate simple peripheral circuit to set up and forms.Wherein, the base stage of NPN type triode Q701 connects the GPIO_0 terminal of master chip on the one hand by resistance R 706, receive the reset signal that master chip sends, and certainly, described reset signal also can provide by other reset circuit output; Connect direct supply+3V3SB by pull-up resistor R707 on the other hand; The grounded emitter of triode Q701, collector connects direct supply DV33 by resistance R 708 on the one hand, distinguish the reseting pin (the 3rd pin) of connected storage U701 and the reseting pin (the 9th pin) of storer U702 on the other hand, and through filter capacitor C708 ground connection.When triode Q701 receives the high level reset signal, triode Q701 enters the saturation conduction state, and then by its collector output low level reset signal FRESET#, control serial Flash storer U701 or U702 reliable reset are further to guarantee its normal operation.In addition, the direct supply DV33 on the power pin of serial Flash storer U701, U702 (the 8th pin, the 2nd pin) the connecting circuit plate; Signal ground GND on ground pin (the 4th pin, the 10th pin) the connecting circuit plate.Wherein, described direct supply DV33 is by two shunt capacitance C701, C702 ground connection, the wave interference of making an uproar in the filtering direct supply.Like this, in actual use, select wherein a kind of in two kinds of Flash storeies, under the control action of chip selection signal and clock signal, finish between master chip and the serial Flash storer data communication reliably.
Size and market supply position according to program needs storage data volume, above-mentioned can compatible two kinds of serial Flash storeies the storage space expanded circuit can use from the serial Flash storer of each capacity of two kinds of different encapsulation, select a kind of, select the corresponding connection of signal terminal of corresponding connected mode and master chip for use, finish the data communication between master chip and the extended memory.
The utility model is by using the foregoing circuit connected mode, realized in a kind of television circuit scheme, selecting to use the serial Flash extension storage space of two kinds of packing forms, reduced cost of development, improve development efficiency and market adaptability to changes, effectively strengthened the market competitiveness of tv product.Certainly, described Compatibility Design scheme is applicable to that too the utility model does not specifically limit this on the storer of the different parallel Flash that encapsulate or other type.
Certainly, hardware circuit that can compatible multiple storer of the present utility model equally also can be applied in other electric equipment except that tv product, and in each electronic product and industry measurement and control system, the utility model is not limited thereto.
Should be noted that; the above only is a kind of preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, a kind of hardware circuit that can compatible multiple storer, it is characterized in that: hardware circuit board is provided with a plurality of storer connecting portions, and the contact layout of described a plurality of storer connecting portions is corresponding with the storer pin layout of multiple encapsulated type respectively; Wherein, the respective data transfer terminal that is connected the master chip on the described hardware circuit board with the corresponding contact of data transmission pin of storer.
2, hardware circuit that can compatible multiple storer according to claim 1, it is characterized in that: in described a plurality of storer connecting portions, the storer connecting portion that area is little is arranged on the inside of the big storer connecting portion of area.
3, hardware circuit that can compatible multiple storer according to claim 1 and 2, it is characterized in that: in described a plurality of storer connecting portions, with the chip selection signal pin of storer and the corresponding contact of clock input pin respectively with the chip selection signal lead-out terminal and output terminal of clock corresponding connection of son of described master chip.
4, hardware circuit that can compatible multiple storer according to claim 3, it is characterized in that: described storer is the serial Flash storer, its data transmission pin comprises data input pin and data output pin; In described storer connecting portion, and data input pin corresponding be connected sub with the data output end of described master chip respectively with the corresponding contact of data output pin with described data input pin.
5, hardware circuit that can compatible multiple storer according to claim 4, it is characterized in that: described hardware circuit board is provided with two storer connecting portions, respectively the serial Flash storer of corresponding 8 pins and two kinds of encapsulated types of 16 pins; Wherein, be arranged on inside with the corresponding storer connecting portion of described 16 pin Flash storeies with the corresponding storer connecting portion of described 8 pin Flash storeies.
6, a kind of electric equipment is characterized in that: portion's hardware circuit board is provided with a plurality of storer connecting portions within it, and the contact layout of described a plurality of storer connecting portions is corresponding with the storer pin layout of multiple encapsulated type respectively; Wherein, the respective data transfer terminal that is connected the master chip on the described hardware circuit board with the corresponding contact of data transmission pin of storer.
7, electric equipment according to claim 6 is characterized in that: in described a plurality of storer connecting portions, the storer connecting portion that area is little is arranged on the inside of the big storer connecting portion of area.
8, according to claim 6 or 7 described electric equipments, it is characterized in that: in described a plurality of storer connecting portions, with the chip selection signal pin of storer and the corresponding contact of clock input pin respectively with the chip selection signal lead-out terminal and output terminal of clock corresponding connection of son of described master chip.
9, electric equipment according to claim 8 is characterized in that: described storer is the serial Flash storer, and its data transmission pin comprises data input pin and data output pin; In described storer connecting portion, and data input pin corresponding be connected sub with the data output end of described master chip respectively with the corresponding contact of data output pin with described data input pin.
10, electric equipment according to claim 9 is characterized in that: described hardware circuit board is provided with two storer connecting portions, respectively the serial Flash storer of corresponding 8 pins and two kinds of encapsulated types of 16 pins; Wherein, be arranged on inside with the corresponding storer connecting portion of described 16 pin Flash storeies with the corresponding storer connecting portion of described 8 pin Flash storeies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200170394U CN201146049Y (en) | 2008-01-23 | 2008-01-23 | Hardware circuit capable of being compatible a plurality of memories and electrical installation with the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200170394U CN201146049Y (en) | 2008-01-23 | 2008-01-23 | Hardware circuit capable of being compatible a plurality of memories and electrical installation with the same |
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| CN201146049Y true CN201146049Y (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200170394U Expired - Fee Related CN201146049Y (en) | 2008-01-23 | 2008-01-23 | Hardware circuit capable of being compatible a plurality of memories and electrical installation with the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573928A (en) * | 2016-02-04 | 2016-05-11 | 北京安控科技股份有限公司 | Hardware circuit compatible with multiple types of serial storages and self-adaptation method |
| CN103943148B (en) * | 2014-05-20 | 2017-04-05 | 建荣集成电路科技(珠海)有限公司 | Flash memory and its reset signal output method |
| CN111367465A (en) * | 2018-12-26 | 2020-07-03 | 深圳市江波龙电子股份有限公司 | Control method of storage device, storage device and electronic device |
-
2008
- 2008-01-23 CN CNU2008200170394U patent/CN201146049Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943148B (en) * | 2014-05-20 | 2017-04-05 | 建荣集成电路科技(珠海)有限公司 | Flash memory and its reset signal output method |
| CN105573928A (en) * | 2016-02-04 | 2016-05-11 | 北京安控科技股份有限公司 | Hardware circuit compatible with multiple types of serial storages and self-adaptation method |
| CN111367465A (en) * | 2018-12-26 | 2020-07-03 | 深圳市江波龙电子股份有限公司 | Control method of storage device, storage device and electronic device |
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| Date | Code | Title | Description |
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| 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: 20081105 Termination date: 20120123 |