CN102572564A - Method for common interface (CI) card interface to be compatible with condition access (CA) card - Google Patents
Method for common interface (CI) card interface to be compatible with condition access (CA) card Download PDFInfo
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- CN102572564A CN102572564A CN2012100016284A CN201210001628A CN102572564A CN 102572564 A CN102572564 A CN 102572564A CN 2012100016284 A CN2012100016284 A CN 2012100016284A CN 201210001628 A CN201210001628 A CN 201210001628A CN 102572564 A CN102572564 A CN 102572564A
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Abstract
The invention relates to a method for a common interface (CI) card interface to be compatible with a condition access (CA) card, which comprises respectively connecting a power supply pin, a ground connection pin, a card detection pin, a card enabling pin, a reset pin, a data pin and a clock pin of the CA card with corresponding pins with the same function in the CI card interface to enable corresponding pins of the CI card interface to be reused; and enabling the CA card to normally work through the CI card interface when the CI card interface reads and writes the CA card by controlling a system central processing unit (CPU) connected with the pins of the CI card interface and configuring process input output (PIO) characteristics of corresponding pins of the system CPU according to characteristics of the pins of the CA card. The method for the CI card interface to be compatible with the CA card is capable of enabling equipment of a digital television, a set top box or the like to meet using requirements of a large card (a CI card) and a small card (the CA card), facilitates popularization of large card products, and simultaneously reduces using cost of radio and television equipment.
Description
Technical field
The present invention relates to the compatible method of unlike signal in the DTV, is the method for the compatible CA of CI (Common Interface) card (Condition Access) card concretely.
Background technology
In the equipment of broadcasting and TV system was used, in order to adapt to CA (reception of Condition Access condition) system condition of different all over China, apparatus of digital television receiving had proposed the separation between machine and card scheme based on CI (Common Interface) interface.The separation between machine and card scheme of CI interface is based on the PCMCIA physical interface and defines pin again, flows to line output and input control for TS (Transport Stream), in kilocalorie (CI card), carries out descrambling.The shortcoming of doing like this is that the cost of kilocalorie is higher.
The cost of kilocalorie has directly improved system cost, all is a bigger expense concerning broadcasting and TV supplier and consumer, has seriously restricted the popularization of kilocalorie product.And not having a system compatible kilocalorie and lesser calorie (CA card) simultaneously now, the use that promptly present neither one system can satisfy kilocalorie (CI card) can be satisfied the use of lesser calorie (CA card) simultaneously again.
Summary of the invention
To above problem; The invention provides the method for the compatible CA card of a kind of CI card; Make equipment such as DTV or STB can satisfy the use of kilocalorie (CI card); Also can use lesser calorie (CA card), help the popularization of present kilocalorie product, also reduce the use cost of broadcasting and TV equipment simultaneously.
The method of the compatible CA card of CI card of the present invention comprises:
Power pins, grounding pin, the card of CA card are detected pin, card enable, reset pin, data pin and clock pin,, make the corresponding pin in the CI card realize multiplexing respectively with the corresponding connection of the pin of identical function in the CI card;
In the CI card CA is sticked into when read-write row, the system CPU that is connected with CI card pin through control, the PIO characteristic according to the attribute configuration system CPU end corresponding pin of each pin of CA card makes the CA card can pass through CI card operate as normal.
Method of the present invention directly reads through the signal of software control CI card (kilocalorie) interface to CA card (lesser calorie) under the prerequisite of the hardware circuit that does not change apparatus of digital television receiving, realizes the compatible CA card of CI card.Do not change because of structure simultaneously, therefore when inserting the CI card, can normally discern and use equally the CI card.
Because the structure of CA card and CI card, size is different; Usually the CA card can not directly be plugged on the CI card; Preferred a kind of scheme is that in the cutting ferrule that CA inserts with the CI card is connected, the said pin of CA card is respectively through the corresponding connection with the CI card of cutting ferrule.
Concrete, the CI card sticks into row judgement detection through the UART pattern of system CPU end corresponding pin to CA, to detect the state that the CA card inserts or extracts; The CI card sticks into line operate through the common PIO read-write mode of system CPU end corresponding pin to CA.The UART pattern is a kind of mode standard of data communication, and belongs to asynchronous communication, has higher efficient, can not take the stand-by period of other application.
The method of the compatible CA card of another kind of CI card of the present invention comprises:
With the power pins of CA card and grounding pin corresponding with the pin of identical function in the CI card be connected carry out multiplexing; The card of CA card detects pin, card enable, reset pin, data pin and clock pin; Based on the input and output direction of said pin, respectively with the CI card in other any pin be connected;
In the CI card CA is sticked into when read-write row, the system CPU that is connected with CI card pin through control, the PIO characteristic according to the attribute configuration system CPU end corresponding pin of each pin of CA card makes the CA card can pass through CI card operate as normal.
Same, each pin that further scheme is the CA card is respectively through the corresponding connection with the CI card of cutting ferrule.
Concrete, the CI card sticks into row judgement detection through the UART pattern of system CPU end corresponding pin to CA; The CI card sticks into line operate through the common PIO read-write mode of system CPU end corresponding pin to CA.
The method of the compatible CA card of CI card of the present invention; Can make equipment such as DTV or STB can satisfy the use of kilocalorie (CI card); Also can use lesser calorie (CA card), help the popularization of present kilocalorie product, also reduce the use cost of broadcasting and TV equipment simultaneously.
Below in conjunction with the embodiment of embodiment, foregoing of the present invention is remake further detailed description.But should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made all should comprise within the scope of the invention.
Description of drawings
Fig. 1 connects sketch map for the hardware of the method for the compatible CA card of CI card of the present invention.
Embodiment
Embodiment 1:
The method of the compatible CA card of CI card of the present invention as shown in Figure 1 comprises:
Power pins (VCC), grounding pin (GND), the card of CA card (lesser calorie) are detected pin (SCDETEC), card enable (SCVCCEN), reset pin (SCRST), data pin (SCDATAIN) and clock pin (SCCLK); Through corresponding connection in cutting ferrule and CI card (kilocalorie) interface, make the corresponding pin realization in the CI card multiplexing respectively;
In CI card UART pattern through system CPU end corresponding pin the time CA is sticked into row judgement detection to work; After detecting the insertion of CA card; The CI card sticks into the row read-write to CA; Through the system CPU that is connected with CI card pin of control, the characteristics such as PIO according to the attribute configuration system CPU end corresponding pin of each pin of CA card make the CA card can pass through CI card operate as normal.The CI card sticks into operations such as the row judgement resets through the common PIO read-write mode of system CPU end corresponding pin to CA.
Method of the present invention directly reads through the signal of software control CI card (kilocalorie) interface to CA card (lesser calorie) under the prerequisite of the hardware circuit that does not change apparatus of digital television receiving, realizes the compatible CA card of CI card.Do not change because of structure simultaneously, therefore when inserting the CI card, can normally discern and use equally the CI card.
Embodiment 2:
On the basis of embodiment 1; With the power pins of CA card and grounding pin corresponding with the pin of identical function in the CI card be connected carry out multiplexing; The card of CA card detects pin, card enable, reset pin, data pin and clock pin, according to the input and output direction of said pin, respectively with the CI card in other any pin be connected; Realization makes the CA card can pass through CI card operate as normal according to the PIO characteristic of the attribute configuration system CPU end corresponding pin of each pin of CA card.
Claims (6)
1.CI the method for the compatible CA card of card, its characteristic comprises:
Power pins, grounding pin, the card of CA card are detected pin, card enable, reset pin, data pin and clock pin,, make the corresponding pin in the CI card realize multiplexing respectively with the corresponding connection of the pin of identical function in the CI card;
In the CI card CA is sticked into when read-write row, the system CPU that is connected with CI card pin through control, the PIO characteristic according to the attribute configuration system CPU end corresponding pin of each pin of CA card makes the CA card can pass through CI card operate as normal.
2. the method for the compatible CA card of CI card as claimed in claim 1 is characterized by: the said pin of CA card is respectively through the corresponding connection with the CI card of cutting ferrule.
3. according to claim 1 or claim 2 the method for the compatible CA card of CI card is characterized by: the UART pattern of CI card through system CPU end corresponding pin sticks into row to CA and judges and detect; The CI card sticks into line operate through the common PIO read-write mode of system CPU end corresponding pin to CA.
4.CI the method for the compatible CA card of card, its characteristic comprises:
With the power pins of CA card and grounding pin corresponding with the pin of identical function in the CI card be connected carry out multiplexing; The card of CA card detects pin, card enable, reset pin, data pin and clock pin; Based on the input and output direction of said pin, respectively with the CI card in other any pin be connected;
In the CI card CA is sticked into when read-write row, the system CPU that is connected with CI card pin through control, the PIO characteristic according to the attribute configuration system CPU end corresponding pin of each pin of CA card makes the CA card can pass through CI card operate as normal.
5. the method for the compatible CA card of CI card as claimed in claim 4 is characterized by: each pin of CA card is respectively through the corresponding connection with the CI card of cutting ferrule.
6. like the method for claim 4 or the compatible CA card of 5 described CI card, it is characterized by: the CI card sticks into row judgement detection through the UART pattern of system CPU end corresponding pin to CA; The CI card sticks into line operate through the common PIO read-write mode of system CPU end corresponding pin to CA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100016284A CN102572564A (en) | 2012-01-05 | 2012-01-05 | Method for common interface (CI) card interface to be compatible with condition access (CA) card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100016284A CN102572564A (en) | 2012-01-05 | 2012-01-05 | Method for common interface (CI) card interface to be compatible with condition access (CA) card |
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| CN102572564A true CN102572564A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100016284A Pending CN102572564A (en) | 2012-01-05 | 2012-01-05 | Method for common interface (CI) card interface to be compatible with condition access (CA) card |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442273A (en) * | 2013-08-13 | 2013-12-11 | 四川长虹电器股份有限公司 | CI card and CA card compatible method based on digital television set-top box and all-in-one machine |
| CN103442276A (en) * | 2013-08-13 | 2013-12-11 | 四川长虹电器股份有限公司 | Method for compatibility of digital television set-top box based on CI card functions and all-in-one machine CA card |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602057A (en) * | 2004-09-21 | 2005-03-30 | 深圳国微技术有限公司 | CI interface based access device for ground and satellite digital television and implementation method thereof |
| KR20050077528A (en) * | 2004-01-28 | 2005-08-03 | (주)아이앤씨테크놀로지 | A method for address sharing ca module address bus and mpeg ts in the ci controller of set-top box |
| CN200950626Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Selective circuit of two condition receiving circuit and set up box |
-
2012
- 2012-01-05 CN CN2012100016284A patent/CN102572564A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050077528A (en) * | 2004-01-28 | 2005-08-03 | (주)아이앤씨테크놀로지 | A method for address sharing ca module address bus and mpeg ts in the ci controller of set-top box |
| CN1602057A (en) * | 2004-09-21 | 2005-03-30 | 深圳国微技术有限公司 | CI interface based access device for ground and satellite digital television and implementation method thereof |
| CN200950626Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Selective circuit of two condition receiving circuit and set up box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442273A (en) * | 2013-08-13 | 2013-12-11 | 四川长虹电器股份有限公司 | CI card and CA card compatible method based on digital television set-top box and all-in-one machine |
| CN103442276A (en) * | 2013-08-13 | 2013-12-11 | 四川长虹电器股份有限公司 | Method for compatibility of digital television set-top box based on CI card functions and all-in-one machine CA card |
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Application publication date: 20120711 |