CN1450432A - Multi-function electronic peripheral card capable of detecting pluggable card - Google Patents
Multi-function electronic peripheral card capable of detecting pluggable card Download PDFInfo
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- CN1450432A CN1450432A CN 02105813 CN02105813A CN1450432A CN 1450432 A CN1450432 A CN 1450432A CN 02105813 CN02105813 CN 02105813 CN 02105813 A CN02105813 A CN 02105813A CN 1450432 A CN1450432 A CN 1450432A
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Abstract
The invention is a multifunctional electronic peripheral card with the detecting inserted-exserted card, at least containing a functional device, a controller, a mainframe-end interface and an inserted-exserted card's interface, the detecting foot location of card on the mainframe interface is the reference position fixing and representing insertion of the card, the inserted-exserted card's interface set with a shrapnel switch linked with the detecting foot location of the device of the controller, and according to the height variation of the reference position, the controller detects the occurrence and state of the insertion or exserting event for the electronic peripheral card and sets the occurrence and state in the interior state temporary memory.
Description
Technical field
The present invention is relevant a kind of electronic card, refers to a kind of multifunctional electronic card with detecting pluggable card especially.
Background technology
Press, progress along with electronics technology, oneself miniaturization that becomes of healing of all kinds of electronic devices, for example, notes type (Notebook) computer, hand held (Palm) computer or PDA(Personal Digital Assistant) etc., the electronic installation that this kind is small-sized is owing to can carry and have powerful calculation process ability, therefore, the user can be provided great convenience, yet, because volume is little, so general this kind compact electronic device only is provided with the basic processing circuit, for other extra circuit module, for example, annex memory, modem, Local Area Network Cards etc. then are to realize the function of being correlated with the corresponding miniature electric card of pegging graft, and this kind electronic card also can be plugged on the PC with the exchange of carrying out data or storage etc.
Traditionally, this kind electronic card is with the main frame breakout box of CF (CompactFlash) or PCMCIA interface and host computer system (Host Board Adaptor, HBA) connect, and in order to make host side can know the insertion of electronic card or to extract state, card detecting pin position CD# 1 and CD# 2 have all been defined at the PCMCJA/CF interface, this bipod position CD# 1 and CD# 2 are at floating at ordinary times, and when inserting electronic card, then change ground state into, so main frame breakout box one is when detecting pin position CD# 1 and CD# 2 when being ground connection, promptly notify host side to have card to insert, so that carry out a start-up routine, so can reach the insertion of Auto-Sensing electronic card or extract state.
Again in order to make host apparatus can connect the electronic card of how different interfaces, SmartMedia card for example, MMC (Multi-Medium Card) card, SD (Secure Digital) card, the MemoryStick card, or PIC (Personal lnformation Carrier) card etc., and can card breakout box (Card Adaptor) these electronic cards be forwarded to the host apparatus of PCMCIA/CF interface, with reference to shown in Figure 1, this card breakout box 11 must be provided with an elastic sheet switch 13 on its card slot 12, these elastic sheet switch 13 1 end ground connection, the other end then is connected to the CD# 1 and the CD# 2 pin position of PCMCIA/CF interface 111, and when card breakout box 11 inserts the main frame breakout box 151 of host computer system 15, further be connected to system's noble potential, and Smart Media card for example, mmc card, the SD card, Memory Stick card, or electronic card such as PIC card is not when inserting this card breakout box 11 as yet, this elastic sheet switch 13 is off state for upspringing, so CD# 1 and CD# 2 pin position are noble potential, host computer system 15 will not supply power to the PCMCIA/CF interface bus.And when electronic card inserts this card breakout box 11, the elastic sheet switch 13 of card slot 12 can be pressed and be conducting state, cause CD# 1 and CD# 2 pin position ground connection, so accurate position is pulled to electronegative potential by noble potential, and the variation of the accurate thus position of main frame breakout box 151 and detect the insertion of Smart Media card, mmc card, SD card, Memory Stick card or PIC card etc. on the card breakout box 11 or drape over one's shoulders and do well, and notice host side 152 begins the power supply of PCMCIA/CF interface bus and carries out a start-up routine.
Though can realize the insertion of Auto-Sensing electronic card or extract in aforementioned CD# 1 and CD# 2 pin position, yet, in the use of reality, if plug electronic card arbitrarily, can cause any situation to the power supply/outage of PCMCIA/CF interface bus, this will cause the circuit of PCMClA/CF interface bus to present the state of three-state (Tri-state), may cause the erroneous judgement of system; In addition, when being inserted into again after electronic card is detached, host computer system must be powered again and re-executes the beginning program that opens the PCMCIA/CF interface bus, so but host computer system must wait for that power supply is stable and finish and open after the beginning program just access electronic card; In addition, realizing on the multifunctional electronic card (Multi-functional card), owing on the same card, may have a plurality of functional devices, but realized with pluggable mode as one of them functional device, then when detaching this functional device, will cause other functional devices also to be de-energized and can't to use.Therefore, aforementioned known electronic card still has many shortcomings, and gives improved necessity.
The inventor whence originally in the spirit of positive innovation, is urgently thought a kind of " multifunctional electronic card with detecting pluggable card " that can address the above problem because of in this, and several times research experiment is eventually to finishing this novel progressive invention.
Summary of the invention
The objective of the invention is is providing a kind of multifunctional electronic card with detecting pluggable card, can plug functional device so that be implemented in to provide in the multifunctional electronic card, and solves every shortcoming that oneself knows technology.
For reaching aforesaid purpose, the multifunctional electronic card with detecting pluggable card of the present invention comprises: at least one functional device controller has a state working storage and a device detecting pin position; One host side interface is to supply to be inserted in a host apparatus, and the accurate position of representing card to insert is fixed in its card detecting pin position; And, a but plug-in card interface, be for plugging plugged electronic card with other functional devices, and be provided with the elastic sheet switch that a device that is connected in this controller is detected the pin position, this elastic sheet switch can plug the insertion of electronic card according to this or detach and conducting or open circuit, and cause the height of the accurate position of this device detecting pin position to change, wherein, this controller is to detect generation and the state that this can plug the insertion of electronic card or detach incident by the accurate position height variation of this device detecting pin position, and it is set in this state working storage, and see through this host side interface notice host computer system, so that read the value of this state working storage and judge that this can plug the insertion of electronic card or detach state by this host computer system.
Wherein, this host side interface is to be the PCMCIA/CF interface, and its CD# 1 and CD# 2 pin position are the permanent ground states that is.
Wherein, the end ground connection that this shell fragment is opened, the other end connects the device detecting pin position of this controller, this device detecting pin position also connects a current potential pull-up resistor, but this can plug electronic card and inserts as yet should plug-in card interface the time with box lunch, this elastic sheet switch is to be in the state that flicks, and make the current potential of this device detecting pin position is high levle, but and insert should plug-in card interface the time when plugging electronic card, this elastic sheet switch is subjected to the compacting of card and is the state of conducting, causing this device detecting pin position ground connection and current potential is by the hypermutation low level, but can plug electronic card when detaching this plug-in card interface when this again, the current potential of this device detecting pin position low high levle that becomes of serving as reasons.
Wherein, the state working storage of this controller is the extension state working storage for the one group of function configuration working storage group that is defined in the attributes store in the PCMCIA/CF standard.
Wherein, this state working storage has first bit and second bit, but but to define the generation whether this plug-in card interface inserts the plug incident of the state of card and this plug-in card interface respectively.
Wherein, but this first bit be represented to plug in 0 o'clock electronic card do not insert should plug-in card interface, but this first bit is to represent to plug electronic card at 1 o'clock to have inserted this plug-in card interface.
Wherein, but this second bit is can plug incident that electronic card inserted or detached this plug-in card interface when taking place having, and its value becomes 1 by 0.
Wherein, this controller is will install an accurate change triggers of detecting pin position to the IREQ# pin position that is defined in the PCMCIA/CF interface, interrupts to this host computer system to send, and distinguishes the source of interruption by host computer system by reading this first and second bit.
Wherein, this controller is that device is detected the accurate position change triggers of pin position to the SYSCHG# pin position that is defined in the PCMCIA/CF interface, with setting SYSCHG# pin position, and after host computer system finds that SYSCHG# pin position has been set, just read this first and second bit through this host side interface.
Wherein, this can to plug electronic card be Smart Media card, mmc card, SD card, Memory Stick card or PIC card.
Because the present invention constructs novelty, can provide on the industry and utilize, and truly have the enhancement effect, so apply for a patent in accordance with the law.
Description of drawings
For making the auditor can further understand structure of the present invention, feature and purpose thereof, below in conjunction with the detailed description of accompanying drawing and preferred embodiment as after, wherein:
Fig. 1 is the Organization Chart that electronic card is forwarded to the host apparatus of PCMCJA/CF interface with the card breakout box.
Fig. 2 is the Organization Chart with multifunctional electronic card of detecting pluggable card of the present invention.
Embodiment
A relevant preferred embodiment with multifunctional electronic card of detecting pluggable card of the present invention, please be earlier with reference to shown in Figure 2, this multifunctional electronic card 21 with detecting pluggable card mainly comprises a controller 211, at least one functional device 212, but a host side interface 213 and a plug-in card interface 214, wherein, this functional device 212 can be the storer that generally is implemented on the electronic card, relevant modules such as local-area network control or modem, this host side interface 213 is preferably to be the PCMCJA/CF interface, so that this multifunctional electronic card 21 with detecting pluggable card inserts the main frame breakout box 221 of host computer system 22, but should plug-in card interface 214 be for plugging the plugged electronic card 23 with other functional devices, for example Smart Media card, mmc card, the SD card, Memory Stick card, or the PIC card etc.
In aforementioned multifunctional electronic card 21 with detecting pluggable card of the present invention, card detecting pin position in host side interface 213 is to be fixed in the accurate position of representing card to insert, be to be solid ground in present embodiment, that is, original design is the permanent low-potential state that is at the CD# 1 and the CD# 2 of PCMCIA/CF interface, but then be provided with an elastic sheet switch 215 at plug-in card interface 214, one end ground connection of this elastic sheet switch 215, the other end is connected in a device detecting pin position (Device Detect pin who is arranged on this controller 211, DD#), to detect the conducting or the off state of this elastic sheet switch 215 by this controller 211, wherein, this device detecting pin position DD# also connects a current potential pull-up resistor (Pull high resistor), but insert as yet should plug-in card interface 214 time when plugging electronic card 23, but the elastic sheet switch 215 that is somebody's turn to do plug-in card interface 214 is to be in the state that flicks, so the current potential of this device detecting pin position DD# is a high levle, but and insert should plug-in card interfaces 214 time when plugging electronic card 23, the state that is conducting but the elastic sheet switch 215 that is somebody's turn to do plug-in card interface 214 is subjected to the compacting of card, causing this device detecting pin position DD# ground connection and current potential is by the hypermutation low level, and can detect this variation of position surely by this controller 211.
This controller 211 has a state working storage 216, for example for being defined in one group of function configuration working storage group (Function Control Registers of the attributes store (Attribute memory) in the PCMCIA/CF standard, FCR) extension state working storage (Extended StatusRegister, FSR), but but the bit of selecting two reservations in this state working storage 216 for use defines the generation whether this plug-in card interface 214 inserts the plug incident of the state of card and this plug-in card interface 214, for example, the bit D1 and the D2 of definition extension state working storage are as follows:
But the D1 bit is can plug electronic card 23 in order to expression whether to insert plug-in card interface 214, but its be represented to plug in 0 o'clock electronic card 23 do not insert should plug-in card interface 214, but its be represented to plug in 1 o'clock electronic card 23 oneself insert should plug-in card interface 214;
But the D2 bit is can plug the generation that electronic card insertion 23 detaches the incident of this plug-in card interface 214 in order to reaction, and when this plug incident took place, its value became 1 by 0.
By the setting of DD# pin position and D1 bit and D2 bit, but in the time can plugging electronic card 23 insertions or detach plug-in card interface 214, this controller 211 can detect the variation of the accurate position of DD# pin position, and therefore removes to set D1 bit and D2 bit.Wherein, but when plugging electronic card 23 when inserting plug-in card interfaces 214, the accurate position of DD# pin position is by high step-down, controller 211 has learnt that the plug incident takes place, so the D2 bit is made as 1, and the accurate position of the DD# pin position after changing is electronegative potential, so the D1 bit is made as 1; And but when plugging electronic card 23 when detaching plug-in card interface 214, the accurate position of DD# pin position is uprised by low, and controller 211 has learnt that the plug incident takes place, thus the D2 bit is made as 1, and accurate of the DD# pin position after changing be noble potential, so the D1 bit is made as 0.
And in order to make host computer system 22 also learn the insertion that can plug electronic card 23 or detach, this controller 211 must see through accurate position this host computer system 22 of change notification that this host side interface 213 the plug incident that is detected takes place caused DD# pin position, and make this host computer system 22 see through the value that host side interface 213 reads the D1 bit and the D2 bit of this controller 211, with the insertion of judging electronic card 23 or detach state, and be correlated with open beginning or termination routine.
For example, this controller 211 can be with the accurate position change triggers of DD# pin position to the IREQ# pin position that is defined in the PCMCIA/CF interface or SYSCHG# pin position.Wherein, when being toggled to IREQ# pin position, when as long as the accurate position one of DD# pin position changes, controller 211 promptly sees through IREQ# pin position and sends interruption to host computer system 22, and host side 222 is had no progeny in receiving, just distinguish the source of interruption by reading D1 bit and D2 bit, as judge that this interruption is because of the insertion that can plug electronic card 23 or detaches institute and send, then host computer system 22 will be correlated with opens beginning or termination routine and the D2 bit is made as 0, so that can be in order to the generation of detecting plug incident next time; And when being toggled to SYSCHG# pin position, when as long as the accurate position one of DD# pin position changes, controller 211 is about to SYSCHG# pin position and is set (assertion), and after main frame breakout box 221 is found SYSCHG# pin positions oneself is set, just host side 222 is given in the interruption that the state that can produce changes, and host computer system 22 just sees through this host side interface 213 and read D1 bit and D1 bit, with be correlated with open the beginning or termination routine, and the D1 bit is made as 0, so that the generation of detecting plug incident next time.
By above explanation as can be known, but the multifunctional electronic card 21 with detecting pluggable card of the present invention is to detect for example Smart Media card, mmc card with the DD# pin position of plug-in card interface 214, SD card, Memory Stick card or PIC card etc. can plug the insertion of electronic card 23 or detach state, and with the insertion of the generation of state working storage 216 record plug incidents and card or detach state, notify host computer system 22 in the mode of interruption or poll simultaneously, but reach the purpose of Auto-Sensing plug-in card in view of the above, it can provide following advantage:
(1) functional device of multifunctional electronic card is to realize in pluggable mode, have this functional device plugged electronic card insertion or detach the running that can not influence other functional devices.
(2) when plugging electronic card when being detached, after multifunctional electronic card is learnt this state, supply of current can be reduced to the state that to keep other functional device normal operations, and reach the effect of power saving.
(3) when plugging electronic card when being detached, owing to have only this supply of current that can plug electronic card to be cut off, certain degree is still kept in other power supplies partly to multifunctional electronic card, in a single day so in the time of can plugging the electronic card insertion, its start-up routine can more traditional mode be finished sooner, and make host apparatus can faster access this can plug the functional device of electronic card.
(4) this can plug electronic card as any plug, multifunctional electronic card of the present invention is to utilize the high low level of the IREQ# pin position of PCMCIA/CF interface or SYSCHG# pin position to change and allow host apparatus that the PCMCIA/CF interface bus is carried out normal release movement, so do not have the generation of any erroneous judgement.
In sum, no matter the present invention is all showing its time differ from the feature of known technology with regard to purpose, means and effect, is the quantum jump in the electronic card making.Only it should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1. the multifunctional electronic card with detecting pluggable card is characterized in that, mainly comprises:
At least one functional device;
Controller has a state working storage and a device detecting pin position;
One host side interface is to supply to be inserted in a host apparatus, and the accurate position of representing card to insert is fixed in its card detecting pin position: and
A but plug-in card interface, be for plugging plugged electronic card with other functional devices, and be provided with the elastic sheet switch that a device that is connected in this controller is detected the pin position, this elastic sheet switch can plug the insertion of electronic card according to this or detach and conducting or open circuit, and cause the height of the accurate position of this device detecting pin position to change
Wherein, this controller is to detect generation and the state that this can plug the insertion of electronic card or detach incident by the accurate position height variation of this device detecting pin position, and it is set in this state working storage, and see through this host side interface notice host computer system, to read the value of this state working storage and to judge that this can plug the insertion of electronic card or detach state by this host computer system.
2. the multifunctional electronic card with detecting pluggable card as claimed in claim 1 is characterized in that, wherein, this host side interface is to be the PCMCIA/CF interface, and its CD#1 and CD#2 pin position are the permanent ground states that is.
3. the multifunctional electronic card with detecting pluggable card as claimed in claim 2, it is characterized in that, wherein, the end ground connection that this shell fragment is opened, the other end connects the device detecting pin position of this controller, this device detecting pin position also connects a current potential pull-up resistor, but this can plug electronic card and inserts as yet should plug-in card interface the time with box lunch, this elastic sheet switch is to be in the state that flicks, and make the current potential of this device detecting pin position is high levle, but and insert should plug-in card interface the time when plugging electronic card, this elastic sheet switch is subjected to the compacting of card and is the state of conducting, cause this device detecting pin position ground connection and current potential for by the hypermutation low level, but can plug electronic card when detaching this plug-in card interface when this again, the current potential that this device is detected the pin position is served as reasons and is hanged down the change high levle.
4. the multifunctional electronic card with detecting pluggable card as claimed in claim 2, it is characterized in that, wherein, the state working storage of this controller is the extension state working storage for the one group of function configuration working storage group that is defined in the attributes store in the PCMCIA/CF standard.
5. the multifunctional electronic card with detecting pluggable card as claimed in claim 4, it is characterized in that, wherein, this state working storage has first bit and second bit, but but to define the generation whether this plug-in card interface inserts the plug incident of the state of card and this plug-in card interface respectively.
6. the multifunctional electronic card with detecting pluggable card as claimed in claim 5, it is characterized in that, wherein, but this first bit be represented to plug in 0 o'clock electronic card do not insert should plug-in card interface, but this first bit is to represent to plug electronic card at 1 o'clock to have inserted this plug-in card interface.
7. the multifunctional electronic card with detecting pluggable card as claimed in claim 5 is characterized in that, wherein, but this second bit is that its value becomes 1 by 0 when having the incident that can plug the electronic card insertion or detach this plug-in card interface to take place.
8. as claim 6 or 7 described multifunctional electronic cards with detecting pluggable card, it is characterized in that, wherein, this controller is that device is detected the accurate position change triggers of pin position to the IREQ# pin position that is defined in the PCMCIA/CF interface, interrupt giving this host computer system to send, and distinguish the source of interruption by reading this first and second bit by host computer system.
9. as claim 6 or 7 described multifunctional electronic cards with detecting pluggable card, it is characterized in that, wherein, this controller is that device is detected the accurate position change triggers of pin position to the SYSCHG# pin position that is defined in the PCMCIA/CF interface, to set SYSCHG# pin position, and after host computer system finds that SYSCHG# pin position has been set, just read this first and second bit through this host side interface.
10. the multifunctional electronic card with detecting pluggable card as claimed in claim 1 is characterized in that, wherein, this can plug electronic card is Smart Media card, mmc card, SD card, Memory Stick card or PIC card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02105813 CN1272684C (en) | 2002-04-10 | 2002-04-10 | Multi-function electronic peripheral card capable of detecting pluggable card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02105813 CN1272684C (en) | 2002-04-10 | 2002-04-10 | Multi-function electronic peripheral card capable of detecting pluggable card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450432A true CN1450432A (en) | 2003-10-22 |
| CN1272684C CN1272684C (en) | 2006-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02105813 Expired - Fee Related CN1272684C (en) | 2002-04-10 | 2002-04-10 | Multi-function electronic peripheral card capable of detecting pluggable card |
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| Country | Link |
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| CN (1) | CN1272684C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403590A (en) * | 2010-09-08 | 2012-04-04 | 神讯电脑(昆山)有限公司 | Connecting device with electrolysis prevention function |
| CN102710827A (en) * | 2012-06-11 | 2012-10-03 | 无锡力芯微电子股份有限公司 | Method and mobile communication terminal for rapidly responding hot plug of SIM card |
| CN103219023A (en) * | 2012-01-18 | 2013-07-24 | 飞利浦建兴数位科技股份有限公司 | Thin type optical drive |
| CN105335542A (en) * | 2014-08-13 | 2016-02-17 | 海思光电子有限公司 | In-place state monitoring device and method and communication equipment |
-
2002
- 2002-04-10 CN CN 02105813 patent/CN1272684C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403590A (en) * | 2010-09-08 | 2012-04-04 | 神讯电脑(昆山)有限公司 | Connecting device with electrolysis prevention function |
| CN102403590B (en) * | 2010-09-08 | 2015-11-25 | 神讯电脑(昆山)有限公司 | There is the jockey of anti-electrolysis |
| CN103219023A (en) * | 2012-01-18 | 2013-07-24 | 飞利浦建兴数位科技股份有限公司 | Thin type optical drive |
| CN103219023B (en) * | 2012-01-18 | 2016-01-20 | 飞利浦建兴数位科技股份有限公司 | Thin optical disc machine |
| CN102710827A (en) * | 2012-06-11 | 2012-10-03 | 无锡力芯微电子股份有限公司 | Method and mobile communication terminal for rapidly responding hot plug of SIM card |
| CN105335542A (en) * | 2014-08-13 | 2016-02-17 | 海思光电子有限公司 | In-place state monitoring device and method and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1272684C (en) | 2006-08-30 |
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