CN1763858A - Cd-rom - Google Patents
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- CN1763858A CN1763858A CN 200410086161 CN200410086161A CN1763858A CN 1763858 A CN1763858 A CN 1763858A CN 200410086161 CN200410086161 CN 200410086161 CN 200410086161 A CN200410086161 A CN 200410086161A CN 1763858 A CN1763858 A CN 1763858A
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- transmitting device
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Abstract
The invention discloses a CD-ROM drive, which comprises the following parts: mechanic device, transformation device and control chip, wherein the transformation device contains a first connection foot, a second connection foot and a third connection foot; the first connection foot connects the earth; the control chip couples the mechanic device and transformation device, which contains a first end and a second end; the first end couples the second end connection foot; the second end couples the third connection foot to transform data or control signal; when the first connection foot connects the third connection foot, the control chip detects a signal of representative from the second end into the detection mode, which activates the mechanic device to detect.
Description
Technical field
The present invention relates to a kind of CD-ROM drive, particularly a kind of transmitting device, and the CD-ROM drive that uses this transmitting device in order to execution CD-ROM drive test pattern.
Background technology
Integrated driving electrical interface (the IntegratedDevice Electronics of traditional CD-ROM drive (optical storage apparatus), IDE) generally include: one has the transmitting device of a plurality of transmission connecting-legs, and setting device, be in order to determine that this CD-ROM drive is integrated driving electrical interface (Integrated DeviceElectronics, main storage means IDE) (master device) or from memory storage (slave device); In addition, other comprises one in order to determine whether this CD-ROM drive enters the switching device shifter of test pattern (test mode).Fig. 1 is the back appearance synoptic diagram of the traditional CD-ROM drive of expression, comprises a decision IDE main storage means or the switching device shifter 15 that whether enters test pattern from the setting device 13 and the decision of memory storage.Setting device 13 comprises six pin (pins) P11 to P16 and one first jumper wire device (jumper does not show), optionally connects pin P11 and P12, P13 and P14, and P15 and P16.Switching device shifter 15 comprises two pin P17 to P18 and one second jumper wire device (not shown), optionally connects pin P17 and P18.Fig. 2 is the control circuit figure of the traditional CD-ROM drive of expression.Comprise a control chip 11, first end points 12, second end points 14, setting device (setting device) 13 and switching device shifter (switching device) 15 in the control circuit.Control chip 11 is in order to detecting operation mode state, Data transmission and control mechanical hook-up (mechanical device does not show).First end points 12 of control chip 11 sees through current-limiting resistance R11, R12, is coupled to power supply VCC and pin P12, P14, P16, in addition, and pin P11 ground connection, pin P13 suspend (floating).Second end points 14 of control chip 11 sees through current-limiting resistance R13, R14, is coupled to power supply VCC and pin P18, in addition, and pin P17 ground connection.When the first jumper wire device (not shown) connected pin P11 and P12, control chip 11 can detect a logical zero signal from first end points 12, was that to represent CD-ROM drive be the main storage means of integrated driving electrical interface.In addition when first jumper wire device (not shown) connection pin P13 and P14, control chip 11 can detect a logical one signal from first end points 12, be represent CD-ROM drive be integrated driving electrical interface from memory storage.When the second jumper wire device (not shown) connected pin P17 and P18, control chip 11 can detect a logical zero signal from second end points 14, and CD-ROM drive is to carry out test pattern (test mode).
Traditional CD-ROM drive causes to produce higher cost during fabrication because of comprising the switching device shifter of a test pattern; And this switching device shifter only supplies manufacturer in CD-ROM drive shipment Pretesting usefulness, there is no use concerning general user.Therefore, the invention provides a kind of CD-ROM drive that removes the test pattern switching device shifter, in order to reduce manufacturing cost.
Summary of the invention
The CD-ROM drive of purpose of the present invention for providing one to remove the test pattern switching device shifter is in order to reduce manufacturing cost.
The present invention discloses a kind of CD-ROM drive, comprises a mechanical hook-up, a transmitting device and a control chip.Transmitting device comprises one first pin, second pin and one the 3rd pin, the first pin ground connection wherein.Control chip is coupled to mechanical hook-up and transmitting device, comprises one first end points and one second end points, and first end points is coupled to second pin, and second end points is coupled to the 3rd pin.When first pin was connected with the 3rd pin, control chip drove above-mentioned mechanical hook-up and tests from second end-point detection to a test pattern signal.
Description of drawings
Fig. 1 is the back appearance synoptic diagram of the traditional CD-ROM drive of expression;
Fig. 2 is the control circuit figure of the traditional CD-ROM drive of expression;
Fig. 3 is the back appearance synoptic diagram of expression according to the CD-ROM drive of the embodiment of the invention;
Fig. 4 is the control circuit figure of expression according to the CD-ROM drive of the embodiment of the invention.
Symbol description
11,21～control chip; 12,22～the first end points; 14,24～the second end points; 13,23～setting device; 15～switching device shifter; 25～mechanical hook-up; P11, P12, P13, P14, P15, P16, P17, P18, P21, P22, P23, P24, P25, P26～pin; R11, R12, R13, R14, R21, R22, R23, R24～current-limiting resistance; 20～control circuit; 30～transmitting device; 31～jumper wire device.
Embodiment
CD-ROM drive (optical storage apparatus) can be divided into two kinds of optical pickup device (optical read drives) and optical read-write devices (optical read/write drives).Optical pickup device comprises read-only optical disc memory storage (CD-Read Only Memory drive; CD-ROM drive), in order to read the data of disk format; Digital video disk reading device (DVD-Read Only Memory; DVD-ROM drive), in order to read the data of digital video disk form; And super-audio disc accessing (SACD-Read Only Memory; SACD-ROM drive).Optical read-write device comprises CD-disc read-write equipment (Compact Disc-Read/Write drive; CD-RW drive), in order to write the data of disk format; Digital video disk read-write equipment (Digital Video Disc-Read/Write drive; DVD-RWdrive), in order to write the data of digital video disk form; And super-audio CD-disc read-write equipment (SACD-Read/Write drive; SACD-RW drive).
The CD-ROM drive of the embodiment of the invention is incorporated into the test pattern switching device shifter in the transmitting device, for example integrated driving electrical interface (Integrated Device Electronics, IDE) interface (connector), small-size computer standard interface (small computer standard interface, SCSI) interface, SATA interface, USB (universal serial bus) (universal serial bus, USB) interface of interface or other kenel.It is noted that at this present invention does not only limit the test pattern switching device shifter is incorporated in the IDE transmitting device, can also be incorporated in all kinds transmitting device with at least three transmission connecting-legs.In embodiments of the present invention, this transmitting device comprises first pin, second pin and the 3rd pin.Wherein, first pin is in first current potential, and second and third pin sees through current-limiting resistance and is coupled to control chip, in order to reception or Data transmission and controlling signal.When a jumper wire device connected first pin and the 3rd pin, above-mentioned control chip detected the 3rd pin and produces a potential change (promptly being that the 3rd pin is in first current potential), was that representative enters test pattern.When carrying out test pattern, control chip can be tested by drive mechanism (mechanical device), and burn-in test (aging test) for example is so that mechanical hook-up moves more smoothly.
Fig. 3 is the back appearance synoptic diagram of expression according to the CD-ROM drive of the embodiment of the invention.A CD-ROM drive comprises a transmitting device 30, and this transmitting device 30 more comprises a setting device 23, is in order to determine that this CD-ROM drive is an IDE main storage means or from memory storage.Setting device 23 comprises six pin (pins) P21 to P26 and a jumper wire device (jumper) 31, optionally connects pin P2l and P22, P21 and P23, P23 and P24, and P25 and P26.Fig. 4 is the control circuit figure of expression according to the CD-ROM drive of the embodiment of the invention.Control circuit 20 comprises a control chip 21, first end points 22, second end points 24 and a setting device (switching device) 23.The control circuit 20 of CD-ROM drive utilizes setting device 23 to decide this device for the main storage means (master device) of integrated driving electrical interface (Integrated Device Electronics) or from memory storage (slave device), and determines whether this device enters test pattern (test mode).Control chip 21 is in order to the mechanical hook-up (mechanical device) 25 of detecting operation mode state, Data transmission or control CD-ROM drive.First end points 22 of control chip 21 sees through current-limiting resistance R21 and R22 is coupled to power supply VCC and pin P22, P26, pin P21 ground connection, and pin P24 suspends (floating), and pin P25 is coupled to the IDE bus.Second end points 24 of control chip 21 sees through current-limiting resistance R23 and R24 and is coupled to power supply VCC and pin P23.When jumper wire device 31 connected pin P21 and P22, control chip 21 can detect a logical zero signal from first end points 22, was that to represent CD-ROM drive be the main storage means of integrated driving electrical interface.When jumper wire device 31 connected pin P23 and P24, control chip 21 can detect a logical one signal from second end points 24, be represent CD-ROM drive be integrated driving electrical interface from memory storage.When jumper wire device 31 connected pin P21 and P23, control chip 21 can detect a logical zero signal from second end points 24 in addition, was that representative enters test pattern (test mode).When entering test pattern, control chip 21 can be tested by drive mechanism 25, and for example burn-in test can move mechanical hook-up 25 more smoothly.
Though embodiments of the invention openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (13)
1. CD-ROM drive comprises:
One mechanical hook-up;
One transmitting device comprises one first pin, one second pin and one the 3rd pin; And
One control chip is electrically connected at above-mentioned mechanical hook-up and above-mentioned transmitting device;
Wherein when above-mentioned first pin was connected with above-mentioned the 3rd pin, above-mentioned control chip detected a potential change of above-mentioned the 3rd pin, and drove above-mentioned mechanical hook-up and enter a test pattern.
2. CD-ROM drive as claimed in claim 1, wherein above-mentioned first pin is to be in one first current potential, when above-mentioned first pin was connected with above-mentioned the 3rd pin, above-mentioned control chip detected above-mentioned the 3rd pin and is in above-mentioned first current potential, and drove above-mentioned mechanical hook-up and enter this test pattern.
3. CD-ROM drive as claimed in claim 2, wherein above-mentioned first current potential is an earthing potential.
4. CD-ROM drive as claimed in claim 3 more comprises a jumper wire device, in order to electrically connect above-mentioned first pin and above-mentioned the 3rd pin, makes above-mentioned the 3rd pin be in above-mentioned earthing potential.
5. CD-ROM drive as claimed in claim 3, wherein above-mentioned transmitting device are to be an integrated driving electrical interface.
6. CD-ROM drive as claimed in claim 5, wherein when above-mentioned first pin was connected with above-mentioned second pin, it was to be in above-mentioned earthing potential that above-mentioned control chip detects above-mentioned second pin, was an integrated driving electrical interface main storage means to determine above-mentioned CD-ROM drive.
7. CD-ROM drive as claimed in claim 5, wherein above-mentioned transmitting device more comprises one the 4th pin, above-mentioned the 4th pin suspends.
8. CD-ROM drive as claimed in claim 7, when above-mentioned the 3rd pin was connected with above-mentioned the 4th pin, above-mentioned CD-ROM drive was that an integrated driving electrical interface is from memory storage.
9. CD-ROM drive as claimed in claim 1, wherein when above-mentioned mechanical hook-up enters above-mentioned test pattern, it is 0 logic signal that above-mentioned control chip has one.
10. CD-ROM drive as claimed in claim 1, wherein above-mentioned CD-ROM drive are read-only optical disc memory storage, digital video disk reading device, super-audio disc accessing, CD-disc read-write equipment, digital video disk read-write equipment or super-audio CD-disc read-write equipment.
11. a CD-ROM drive comprises:
One mechanical hook-up;
One transmitting device comprises one first pin, one second pin and one the 3rd pin, and above-mentioned first pin is to be in one first current potential; And
One control chip is coupled to above-mentioned mechanical hook-up and above-mentioned transmitting device, comprises one first end points and one second end points, and above-mentioned first end points is coupled to above-mentioned two pins, and above-mentioned second end points is coupled to above-mentioned the 3rd pin;
Wherein when above-mentioned first pin is connected with above-mentioned the 3rd pin, above-mentioned second end-point detection is to a test pattern signal, and drives above-mentioned mechanical hook-up and enter a test pattern.
12. CD-ROM drive as claimed in claim 11, wherein above-mentioned first current potential is an earthing potential.
13. CD-ROM drive as claimed in claim 11, wherein above-mentioned transmitting device are to be integrated driving electrical interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410086161 CN1763858A (en) | 2004-10-19 | 2004-10-19 | Cd-rom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410086161 CN1763858A (en) | 2004-10-19 | 2004-10-19 | Cd-rom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1763858A true CN1763858A (en) | 2006-04-26 |
Family
ID=36747953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410086161 Pending CN1763858A (en) | 2004-10-19 | 2004-10-19 | Cd-rom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1763858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763877B (en) * | 2009-12-23 | 2012-11-14 | 无锡中星微电子有限公司 | Method and device for rapidly verifying chip by multimedia player |
-
2004
- 2004-10-19 CN CN 200410086161 patent/CN1763858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763877B (en) * | 2009-12-23 | 2012-11-14 | 无锡中星微电子有限公司 | Method and device for rapidly verifying chip by multimedia player |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |