TW200816432A - Card reader controller - Google Patents

Abstract

A card reader controller is connected with a plurality of memory sockets by sharing the package pins of the card reader controller. The card reader controller is controlled by multiplexers connected with the die pads by a control signal, in order to switch data transmission route between the reader controller and the plurality of memory sockets for reading/writing of memory cards inserted in the memory sockets. By saving the number of package pins and die pads, package and die cost are thus reduced.

Description

200816432 IX. Description of the Invention: [Technical Field] The present invention relates to a card reader control chip, and more particularly to a card reader control chip that simultaneously supports various flash memory cards. [Prior Art] With the popularity of flash memory cards in life, related card reader devices have been relatively widely used. There are many types of flash memory cards, including

Compact Flash (CF) card, Micro Drive (MD) card, Smart Media (SM) card, xD Picture Card (xD) card, Secure Digital (S, D) card, Multi Media Card (MMC), Memory Stick (MS) Cards and Memory Stick Pro (MS-Pro) cards, etc. The control chip of the card reader must support the memory cards of various specifications in the same day, and the package pins must be increased accordingly. As shown in the diagram of the control pin connection of the card reader, it is generally possible to read the connection device to insert the above (4) Memory card cutter for CF/MD flash memory card connection device i Bu SM/xD flash Seven card connection hard 12, SD / MMC flash memory card connection device 13 and milk Mf Pro I · 夬 5 5 own | think card connection device 14. Assume that the towel (3) flashes = the number of rounds of the connection device 11 is M1, SM/xD fast flashes, the number of pins is 12, the number of output pins is new, the S_C flash memory card, the = 13 output pin The number is M3, MS / MS_pr 〇 flash memory card; a clothing set 14 lucky month out the number of feet is M4, a card reader device wants to fully support ^ = kind of memory cut U, its card reading _ system W 10 Memory knows that Weimu is M only +M2+M3+M4. However, if an unknown pin is available, the number of pins required to control the chip 10 will become more. 5 200816432 Connected to the second picture, the known chip reader controls the die connection of the chip. The figure is not assumed. The CF/MD flash memory card is connected to the gentleman U, SM/xD flash memory card connection. 12 and c ^ The connection device 13 is connected to the card reader, and the card is replaced by a card. The upper system includes a plurality of supporting legs: = two passes ^ the number of legs depends on the total number of pins of the memory card connection device == connected to the upper wheel of the pin is corresponding to the coffee < pin] 'where CF / MD flashes 1 memory is connected to the "1 and ^ I〇4' SM / xD flash memory card connection device 12 _ and 2 / M2 are connected to the pin 102 and the foot flash memory card connection device! The two output pins are located at ===Γ:ϊΤ.6. While the card reader controls the wafer 10: 匕天日日20, its grain 2〇 hurts white rainbow...such as ^ wins (Figure t to six Contact to explain ί=::=6, 'Make card reader=

Similarly, the card connection device u, SM/xD connection device and SD/MMC flash memory card are connected to the card = memory card for data transmission. The plugged in 1 3 is known from the above. In the prior art, the die 2〇* will be close to or equal to the CF/MD flash memory card, the Zhuang', the number of flash memory card connection devices i2 and SD/MMC. Flash = the number of feet] VU + M2 + M3. Since the crystal slave 2f) two clothes set 13 mesh also with the external connection of the memory card = the cost of the grain 2G is improved. Adding will make the conventional technology so that the overall cost of the card reader control W 1 () is not reduced by the 200816432 method. SUMMARY OF THE INVENTION In view of the above, the present invention provides a card control chip capable of reducing the cost of package manufacturing by controlling a chip reader by a shared card reader, and controlling a chip contact inside the chip by a shared card reader.制 Η —<丄ι. υ not only can reduce the card reader control 曰 μ 1 , 1 1 > 1 column hundred / J, 曰. The present invention provides a card reading system capable of connecting a plurality of memory card connecting devices or an all-in-one memory; The pin is shared by the card reader to control the number of package pins on the wafer, and is sufficient to connect the card to the middle of the card. The number of pins of the pin is the most. a +』+ 士p 卞 接 接 接 接 接. The hunter-splitting method allows the card reader to control the chip and multiple card-speed devices or multiple-memory cards. Leica wheel.疋 疋 直 直 丨 丨 丨 执行 执行 执行 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为 为Use the reading + drag · ^ 仏 疋 疋 疋 疋 忒 忒 忒 圮 圮 圮 圮 连接 连接 连接 连接 连接 连接 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰Sealing this connection: A plurality of multiplexers are arranged in the granules, and the multiplex P = should be connected to the dies. The sub-ship II system controls the k-control card of the customer. The switch is connected to the memory card connection device or the multi-combination-memory memory card in the drop-down connection device and the card reader control chip. The execution of the production into 7 200816432 data transmission 4 not only saves the package pin, but also saves the die pin, effectively reducing the manufacturing cost of the card reader control chip. In order to further understand the techniques, means and functions of the present invention in order to achieve the intended purpose, the detailed description and the accompanying drawings of the present invention are believed to be The invention is to be understood as being limited and not limited by the invention. [Embodiment] In order to reduce the cost of controlling the chip of the card reader, the present invention is a technique for controlling the sharing of the chip package pins and the sharing of the die contacts by the card reader to charge the die. That is, the general card reader device can support a variety of different flash memory cards. When the card is placed in a different memory card, it does not actually occur on the same day. Even if the end user uses two different memory cards to operate the data copying operation, the program for reading and writing is sequential. Therefore, it is feasible to use the card reader to control the angle of the chip. At the same time, only one of the flash memory cards will be operated, so that it is feasible to have all the flash memory card interfaces share the same pin. Referring first to the third figure, the card reader of the present invention controls the connection of the chip pins. As shown in the figure, the card reader control chip 3, the number of pins connecting the memory card is N ', and the C〇mpact Flash (CF) card or the CF/MD flash memory card connection device 31 of the Micr card can be inserted. The number of output pins is

Ml. The SM/xD flash memory card connector 32 with a smart Media (SM) card or xd Picture Card (xD) card can be inserted, and the number of output pins is M2. Pluggable secure Digital (SD) card or Multi Media

Card (MMC) sd / MMC flash memory card connection device 33, its output pin 8 200816432 number is M3. The MS/MS-Pro flash memory card connection device 34 of the Mem〇ry Stlck (MS) card or the Mem〇ry® (MS Pro) card can be inserted, and the number of the output pins is M4. Where N=max{M1, M2, M3, M4}, meaning = the card machine control chip 30 is connected to the CF/MD memory card connection = set 31 SM / xD flash memory card connection device %, flash memory connection In the device 33 and the MS/MS-Pro flash memory card connecting device 34, the number of pins having the largest number of pins is the number of pins. In this way, cf/md flashes 2 to the device M, SM/xD, _ pin to the 32, s_J ^ flash memory card connection device 33 and Ms / Ms_pr. The flash memory card is connected to the card reader control chip. The number of the control chip is the same as that of the card reader control chip. For example, the SM ft flash memory card connection device 31 of the N-pin on the card reader control chip 3G —^_, 二二二鱼^己^卡连接褒32 One-round pin, SD/MMC flash "Connecting clothes 34-output pin. Among them, the card is connected to the strong 31, ", 33, 34 output pins in the ::: 33 clothes test pins are not shared with each other

Ζ Τ Τ ί, ί 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆Obviously, many wells are reduced than in the conventional technology, such as the reading of the flying system, such as μ = μ1 county, such as the number of the H pin. Connect, see the fourth picture of the present invention = there is another type of card reader device, as shown in the figure, the number of the device can be included in the CF / MD / a variety of flash - memory card connection flash memory card, SM / xD flash memory card, 200816432 device Lin Yi card and Ms / Ms-Prc) four types of flash memory card connection memory card connection ii Hr with a number of feet and all-in-one flash language, medium The output pins of various connecting devices are connected. For the fifth picture, J and connection method, please refer to the connection diagram. _ Pins are connected. Clothing ~ set various memory card and card reader control chip flash (four) on the unit 50 on the pin 501 is c_ connection f set 52 ^ set ^ pin should be Pazhou / heart flash memory card ~ two, , pin 2 and SD/flash memory card connection device are shared by foot 1/M3. The pin 5〇2 is a CT/Md card connection, and the pin 2/M1, SM/xD flash memory card is connected to 2/μΤΓ1Γ^ S3.«Ρ μ ^ M Xing CF/MD fast ρΛ1 纪= ==r, SM/x residual memory card connection|Set 52 and 3 UM1 t 53 to perform phase material transmission (depending on each pin to 曰1/M3), pin 502 is connected separately

^The contacts 54 544, 545 and 546 of the granules 54 enable the die 54 and the c layer D, the flash card hidden card connection device 5, the SM/xD flash memory card connection device% 10 200816432 and the SD/MMC fast The flash memory card connecting device 53 performs transmission of related data (depending on the definition of each pin 2/Mb 2/M2 and 2/M3). The pins 541 and 544 are the die 54 for receiving the CF/MD flash memory card connection device and the pin for transmitting data. The pins 542 and 545 are for the die 54 to use the pure SM/xD flash memory. The card connecting device 52 transmits the data pin, the pin (4), and the day particle 54 are used to touch the MG (four) memory card connecting device W = day 1 =. According to the above description, the reader device does not read at the same time point when reading different records. The program for reading and writing is connected first: the system uses t to connect with the foot. Multiple ^^!^_ The memory card in 51, 52, 53 performs the read and write operations. The element if the connection method of the upper part is used, the card reader can control the package of the chip, and the number of the t-pins is the same as the shared pin value. Therefore, the present invention is utilized. " ', ϋ effectively reduce the packaging of the card reader control chip into a step-by-step:! Low-reader control chip cost, system control chip &, see the sixth picture, is the invention card CF /MD, ^^r_f The pin connection diagram of the preferred embodiment. In the figure, 62 and /=/1, the lion flash memory card is connected to the installed control chip in the package; the pin connection device 63 is shared by the card reader. The method and method are the same as the above-mentioned pin 601 and (4) 602, and the original CF_flash memory card is not mentioned here. However, the 卞 connection device is set to 6 s M / X D. Flash memory card connection is installed 200816432

(4) and SD / MMC quick record _ bite county set - _ right foot ugly with the package unit 60 on the feet 601, 602.. In other words, each of the sensations: the detecting pins of the connecting devices 61, 62, 63 are individually connected to one of the pins of the reading card, thereby detecting whether the memory card is inserted into the connecting device, and at the same time Detect the type of billion card. The internal connection of the package unit 6 is a contact 641, 642 on the die 64 - a pair of pins 601, 602 connected to the package, and individually connected to the die 64 to multiplex 6414 , 6421 (the rest of the contacts, pins and multi-work off are not shown, all are ^ f =). The operation of the machine 6 411, 6 4 2丨 is operated by the micro control unit 65 to output a control signal etr· to control the card reader control chip and the π: flash memory card connection device 6bSM/xD flash memory The card connection device Μ and the S_C flash memory card connection bag switch between 63 data transmission channels. First, the operation of the card reader to control the chip will be described by way of two examples. As shown in the sixth figure, the card reader control chip is to be inserted into the CF/MD flash memory card, and the 01 card of the I set 61 is copied to the SM/xD flash. The SIM card in the Leica connection device 62. First, the micro control unit 65 will first detect / shell J CF / MD flash memory card connection installed f 6 丄 and SM / xI) whether i b2 has inserted CF card and SM card, and this return to the main juice 1 set 66 (h〇st), such as personal computers, PDAs and other devices. If the detection arrives, the main computing device 66 issues a command to cause the micro control output control signal to control the multiplexers 64n, 6421, and the lean channels are switched to the CF/MD flash memory card connection device.

65 CF is in the memory unit 67 of the I. If the SM card is slightly smaller than the cover, the main computing device 66 will issue a command to cause the two 65 output control signals ctr to control the multiplexer 6411, 12 200816432. The private data transmission channel is switched to the SM/xD fast. The flash memory card is connected to the garment 62' to write the data stored in the memory unit 67 to the SM card. The mode of transfer between the card reader control chip and the host computing device 66 is applicable to a variety of transmission media and is well known to those skilled in the art and will be described herein. It is also worth noting that when the amount of data to be copied is large, and the person is forced to move, the time-sharing component is repeated to repeat the above-mentioned master-write transmission, until the transmission is completed, each of which is lost. The amount of data must be determined according to the actual situation. According to the above principle, the card reader control chip of the present invention can be connected to a plurality of memory card connecting devices (or multi-connected devices) to process more. The reading and writing operation of the memory card, whether it is the copying of the memory card and the memory card or the reading and writing between the memory card and the computer device, and the contact points 641, (4) ... and the die 64 of the grain 64 Inside the multiplexer 64 ιι, 曰曰 曰曰 = set ' 可 可 - step to improve the different voltage levels on the different junctions caused by the 'by the shared card reader control wafer 60 grade.. and crystal The contacts 64, 642, ... of the grain 64 can save: the number of contacts: and the number of 64 contacts, and save the size of the die 64 Λ 64. Therefore, the present invention is relatively expensive in the cost of the card reader. The known technology is obviously reduced a lot. The above is only the better one of the present invention. Shili is used to define the scope of implementation of the present invention; that is, all the equivalent changes and modifications made by the present invention are the patents of the patent [simplified illustration] U patent 粑 所 & 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The first diagram is a conventional card reader control chip pin connection diagram. The second diagram is the chip contact of the conventional card reader control chip: connection diagram; 13 200816432 II is the basic card machine Control chip connection diagram; 仏^:^, this is a schematic diagram of the control chip connection of the card processor; Θ = the connection diagram of the preferred embodiment of the card control wafer of the present invention; 'Figure; card reader control chip - preferred embodiment of the pin connection [main component symbol description] • [technical technology] card reader control chip 10 Jingka machine control chip pins 101, 102, 103 , 104, 105, 1〇6 CFVMD flash memory card connection mi §M/xD flash memory card connection skirt 12 SD/MMC flash memory card connection device] 3 MS/MS-PrQ flash memory card connection device 14 Output pin of δ board and card connection device 1/M1, 2/M1, 1/M2, 2/M2, _ 1/Μ3 ν 2/Μ3 Grain 2〇 Day grain contacts 201, 202, 203, 204, 205, 206 [Invention] Card reader control chip 30 CF/MD flash memory card connection device 31 SM/ xD flash memory card connection skirt 32 SD/MMC fast Flash memory card connection device 33 MS/Ms, Pro flash memory card connection device 34 14 200816432 All-in-one flash memory card connection device 4 0 package unit 50. Reader control chip pins 501, 502 CF/MD fast Flash memory card connection device 51 SM/xD flash memory card connection device 52 SD/MMC flash memory card connection device 53 Memory card connection device pin 1/M: 1, 2/1V0, 1/M2, 2/M2 , 1 / M3, 2 / M3 die 54 die contacts 54 542, 543, 544, 545, 546 package unit 60 card reader control chip pins 601, 602 CF / MD flash memory card connection device 61 SM/xD flash memory card connection device 62 SD/MMC flash memory card connection device 63 die 64 die contact 641, 642 multiplexer 641 6421 micro control unit 65. main computing device 66 memory unit 67 control signal Ctr 1.5

Claims (1)

200816432 Patent application scope: - Kind of card reader (4) Crystal ϋ 'Tie Lianwei Wei memory card reader control chip including: 妾衣置,, 玄日日粒, with a plurality of die contacts; and - seal The 褒 unit has a plurality of county pins, and the remote package pins are connected to a plurality of 曰 and ^ = memory card connection device output pins, so that the die and 2. The card connection device performs the transmission of the data. The a card reader control chip as described in claim 2, wherein the package pins are individually connected to different memory card connecting devices at the same time - the wheel/foot is made to the wheel of the memory card connecting device The output pins share the package pins. For example, in the patent application model, the card reader control chip described in item i, wherein the crystal reduction points connected to the same pin are respectively referred to as pin signals of different memory card connecting devices. 4. The card reader control chip according to claim 5, wherein the card connection device is an all-in-one memory card connection device, and the multi-in-one memory card connection device is connected The number of pins of the package pins is at least the number of pins of the memory card connection device having the largest number of pins in the all-in-one memory card connection device. 5. The card reader control chip according to claim 4, wherein the all-in-one card connection device comprises a c_Pact Flash (CF)/Micro DriVe (MD) card connection device, and a Smart Media (SM) device. /xD Picture Card (xD) card connector, Secure DigitaKSD) / Multi Media Card (MMC) connector, and Memory Stick (MS) card / Memory Stick Pro (MS-Pro) card connector at least 16 200816432 The memory reads, controls the chip, and connects the memory card connecting devices of the J; secondly, the number of pins is at least the number of pins set by I. The memory card connection, a card reader control chip card machine control chip includes: a money card listening device, the read-grain, is provided with a plurality of crystal chips: some crystal grains The joints are individually connected to the following:: a sluice device, wherein the splicing unit is provided with a plurality of β, and granules, wherein the packaged pins are; the library:; with:: loading the crystal # and the The output of the memory card connection device is connected to the die contact point. The control signal is used to control the data between the memory and the device. _, ^ (4) the grain 舆: the grain read and write of the memory card connection device The second: change 'to make the card reader control card seal as described in item 7 of the patent application scope, the feet are individually connected to different memory card connections 2 2 Hai 10 10 Shenyan patent _ 7th reading The card machine control w, the memory card diligent device is the multi-in-one memory card connection device, and the number of pins of the package pins is §Hai-he-memory card connection device The number of pins with the highest number of pins and the number of pins connected to the device. The card reader control chip described in claim 10 of the patent application, the 17 11 200816432 all-in-one memory card connection device includes a Compact Flash (CF) / Micro Drive (MD) card connection device, Smart Media (SM)/xD Picture Card (xD) card connector, Secure Digital (SD) / Multi MecUa Card (MMC) connector, and Memory Stick (MS) card / Memory Stick Pro (MS-Pro) card connector At least one of them. 12. The card reader control chip of claim 7, wherein the number of pins connected to the package pins of the § ** card connection device is at least the connection of the memory card connection devices. The number of pins of the memory card connection device with the largest number of pins. 13. The card reader control chip according to claim 7, wherein the card reader control chip is connected to a plurality of memory card connection devices, and the memory card connection device comprises a Compact Flash (CF)/Micro Drive. (MD) card connector, Smart Media (SM) / xD Picture Card (xD) card connector, Secure Digital (SD) / Multi Media Card (MMC) connection t, and Memory Stick (MS) card / Memory Stick Pro (MS-Pro) at least one of the card connection devices. 14. The card reader control chip of claim 7, wherein the die further comprises a micro control unit for outputting the control signal to control the multiplexers to read and write the memory card connections. The memory card in the device. 15. The card reader control chip of claim 7, wherein the control signal is a time division multiplex control signal. 18