TW561416B - Electric peripheral card with dynamic memory configuration - Google Patents

Abstract

The present invention is an electric peripheral card with dynamic memory configuration, which uses a dynamic memory controller to let the control chip only need one memory. The dynamic memory controller has the first, second and third base registers, and a selecting device. The output address of the first DMA controller for the electric peripheral card is added with the value of the first base register for accessing data in the memory. The output address of the micro-controller is added with the value of the second base register for accessing data in the memory. The output address of the second DMA controller is added with the value of the third base register for accessing data in the memory. When the micro-controller or the first and second DMA controllers send out the access request to the memory, the dynamic memory controller can make the selecting device selecting one of them according to the sequence of the access request to access the memory.

Description

561416 Printed A7 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -------- B7_____ V. Description of the Invention (I) [Field of the Invention] The present invention relates to an electronic peripheral card, especially a dynamic memory card. Electronic peripheral card with body configuration. [Background of the invention] According to Ik's progress in electronic technology, various types of electronic devices have become more and more miniaturized, such as notebook computers, palm computers, or personal digital assistants (PDAs). Such small electronic devices can provide users with great convenience because they can be carried around and have powerful computing and processing capabilities. However, due to their small size, such small electronic devices are generally provided with only basic processing circuits. For other additional circuit modules, such as additional memory, modems, LAN cards, etc., the corresponding small peripheral cards are connected to achieve related functions, and this electronic peripheral card can also be inserted Connected to a personal computer for data exchange or storage. #Traditionally, this type of electronic peripheral card is composed of a control chip and related materials. As shown in the figure i, the circuit structure of a memory card 10 includes a control chip 11 and a For example, the flash memory is used to store the media core module, and 12; among them, since the control chip 11 needs to control the connected computer device 19 (such as card reader, USB device, personal computer, etc.) and data: Data transfer between the media module and group 12, and flash memory data 2 ^ need to include erasing and writing actions, and on the interface with the computer device 19, it is still necessary to save relevant information about the card, For example, the card used by PCM CIA: 口 口 名 名 口 构 (Card Information Structure, CIS), · · (Please read the precautions on the back first to write this page).

This paper ruler ^ (210 χ 297 mm) 561416 A7 V. Description of the invention (evening) This must include dual-port static random storage for buffering for data transmission in 1 2 Take the memory block ln, the CIS (Card InfGrmati () n strueture) memory block 112 of the CIS storing the memory card, the temporary memory block ⑴ for the microprocessor operation, and the microprocessor data storage Use data to memorize blocks! 4 different memory. Because there are so many memories in the control chip 11, and each memory needs its own decoding circuit, the space occupied by the chip is extremely large, which is not conducive to the miniaturization of the electronic peripheral card and the reduction of costs And it is necessary to improve it. Because of this, the inventor, based on the spirit of active invention, urgently thought of an "electronic peripheral card with dynamic memory configuration" that could solve the above problems. After several cursing experiments, this novel and progressive invention was completed. [Outline of the invention] The main purpose of the invention is to provide an electronic peripheral card with a dynamic memory configuration, which uses only one piece of memory that can dynamically adjust the block size and function to reduce the occupied area. The present invention is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Another object is to provide an electronic peripheral card with dynamic memory configuration. The memory provided by the chip can dynamically adjust the block size and function. Any controller can access at any time without waiting for each other, and multiple controllers can access the same memory at the same time. In order to achieve the foregoing object, the electronic peripheral card with dynamic memory configuration of the present invention includes: a memory; a dynamic memory controller connected to the paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 male) Love) 561416 A7 V. Description of the invention (^) The memory, the dynamic memory controller has first, second and second bottom registers, and a selection device;-the first-dma controller, ^ Yu Hai Start the memory controller. The output address of the first DMA controller is added to the β-substrate register for data access to the memory.-Microcontroller, connected to In the dynamic memory controller, the output address of the microcontroller is added to the value of the second base register for data access to the memory; and a second dma control is connected to The dynamic memory controller and the output address of the second DMA controller are added to the third base register to perform data access to the memory. When the microcontroller or the The first and second DMA controllers issue access requests to the memory When requested, the dynamic memory controller causes the selection device to select one of them to access the memory according to the order of the access request. Since the invention is novel in design, can provide industrial use, and does have an added effect, it applies for a patent in accordance with the law. In order to enable your reviewing committee to further understand the structure, characteristics and purpose of the present invention, a detailed description of the drawings and preferred embodiments is attached as follows: [Simplified description of the drawings] Figure 1: It is a familiar Block diagram of a memory card. FIG. 2 is a structural diagram of an electronic peripheral card with a dynamic memory configuration according to the present invention. This paper size is in accordance with Chinese Gardener's Standard (CNS) A4 specification ⑽χ 297 公 爱 I ^ ----: --------- install --- (Please read the precautions on the back first to write this page) Order :-丨 Line-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 561416 A7

A7

561416 V. Description of the invention (S) (Data —in, Data —out) for accessing data at a specific location in the memory 0 $ first first Μ A controller 2 3 is connected to the dynamic memory controller 22 Under the control of the microcontroller 24, direct memory access of the electronic peripheral card and the connected computer device 19 is performed. The second DMA controller 25 is also connected to the dynamic memory controller 22, and under the control of the microcontroller 24, performs direct memory storage of the data processing module 30 in the electronic peripheral card. In the preferred embodiment, the electronic peripheral card is a CF (Compact Flash) card, and the data processing module 30 is a flash memory module. In addition to controlling the first and second DMA controllers 2 3 and 25, the microcontroller 24 is also connected to the dynamic memory controller 22, and the aforementioned first and second DMA controllers 23 and 25 Both the microcontroller 24 and the micro-controller 24 access data to only a single memory 21 through the management of the dynamic memory controller 22. FIG. 3 further shows the circuit structure of the dynamic memory controller 22, which includes first, second, and third substrate registers 221, 222, and 223, a selection device 224, and an access arbiter; 225 The aforementioned first, second, and third substrate registers 221, 222, and 223 can be planned by the microcontroller 25 to have different or identical contents. The output address of the first d M A controller 23 is added to the first base register 22 1 and then transferred to the memory 2 1 through the selection of the selector 224; the microcontroller 24 The output address is added to the second base register 22 2, and then is transferred to the address line (Addr) of the memory 21 through the selection of the selector 224; the second DMA controller 25 The output address is the same as the third base register 22 3-8. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) --------------- Packing --- (Please read the precautions on the back to write this page) Order: 丨 Line. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 561416 A7

V. Description of the invention (b) After adding 値, it is transferred to the memory 21 through the selection of the selector 224. Therefore, by appropriately planning the first, second, and third base registers 221, 222, and 223, a single memory 21 can be divided into different memory blocks for the first, second, and second memory blocks. The DM A controllers 23 and 25 and the microcontroller 24 are used. As shown in FIG. 4, a memory configuration example is shown. The first and third substrate registers 2 2 1 and 2 2 3 are related to each other. 0x0000 'The second base register 222 is planned to be 0x〇6FF, so a buffer memory block can be provided between addresses 0x0 000 to 0x〇6FF for the first and second DMA The controllers 23 and 25 are used, and a data memory block is planned from the address 0 X 0 6 FF for the microcontroller 24. Please refer to FIG. 3 for the data input of the memory 21 The line (Data_in) receives the output data from the first and second DMA controllers 23 and 25 or the microcontroller 24 through the selection of the selection device 224. The data output line (Data_out) of the memory 21 is directly connected to the first and second DMA controllers 23 and 25 and the microcontroller 24. The aforementioned selector 224 has first and second multiplexers 2241 and 2242, and the inputs of the first multiplexer 2241 are used to input from the first and second DMA controllers 2 3, 25, and the microcontroller, respectively. The address output of the address added to the corresponding base register is connected to the address line of the memory 21. The output terminal of the second multiplexer 2242 is connected to the data input line of the memory 21, and its input terminals are used to input data output from the first and second DMA controllers 23, 25 and the microcontroller 24, respectively. 9 This paper size applies to China National Standard (CNS) A4 (210 X 297 public love) T ---.--------- install --- (Please read the precautions on the back first β write this page ) Order · · i-line-Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 561416 A7

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T 561416 5. Description of the invention (S) He Qi 'system can access S R AM at any time, without waiting for each other, increasing the bandwidth on transmission. () There can be multiple controllers accessing one SRAM at the same time. (5) There is no need to use Dual_p (m) sram. In summary, the present invention, regardless of the purpose, means and effect, shows characteristics that are very different from the conventional technology, and it is used for making electronic peripheral cards. One of them has become an industrially usable, novel and progressive invention, which should meet the requirements of patent application and be filed in accordance with the law. Μ -------------- Installation --- (please first (Read the note on the back and write this page)

Order --------- Line Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210 X 297 Public Love)

Claims (1)

561416 A8 B8 C8 D8 6. Scope of patent application Γ · Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 1 · An electronic peripheral card with dynamic memory configuration, mainly including: a memory; a dynamic memory controller, connected In the memory, the dynamic memory controller has at least first, second, and third substrate registers and a selection device; a first DMA controller connected to the dynamic memory controller. An output address of a DMA controller is added to the first base register to provide data access to the memory; a microcontroller is connected to the dynamic memory controller, and the microcontroller The output address of the controller is added to the second base register to provide data access to the memory. A second DMA controller is connected to the dynamic memory controller. The output address of the D M A controller is added to the third base register to access data in the memory; and a data processing module is performed by the second D A controller. straight Memory access, wherein: when the micro-controller or the first, second DMA controller and sent out on. When the memory access request is made, the dynamic memory controller causes the selection device to select one of them in order to access the memory according to the order of the access request. 2. As described in item 1 of the patent application, it has a dynamic memory configuration (electronic peripheral card), in which the data input line of the memory is selected by the Chinese National Tomb Standard (CNS) A4 specification ⑵ 一- ------- Installation --- (Please read the precautions on the back page first) Order-• 561416 A8 B8 C8 D8 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Select to receive output data from the first and second DMA controllers or microcontrollers. 3. The electronic peripheral card with dynamic memory configuration as described in item 2 of the scope of patent application, wherein the selector has: a first multiplexer whose input ends are used to input from the first and second The output terminal of the DMA controller and the microcontroller added to the corresponding base register is connected to an address line of the memory; and a second multiplexer whose output terminal is connected to the memory The input terminals of the data input and the spring are respectively used to input data output from the first and second DMA controllers and microcontrollers. 4. The peripheral card for a son with dynamic memory configuration as described in item 3 of the scope of the patent application, wherein the dynamic memory controller further includes an arbiter that controls the first and second multiplexers to One of the inputs is switched to the output. 5. The electronic peripheral card with dynamic memory configuration as described in item 4 of the scope of the patent application, wherein the arbiter is based on the order of access requests from the first, second controller and microcontroller Sequence, and control the @selection device to select one of the first, second, and eighth controllers and microcontrollers to access data in the memory. , 2 6 · Dynamic memory configuration (electronic peripheral card) as described in item 5 of Zhongli Patent Enclosure, where the arbiter notifies with a waiting signal that the controller has not been selected and the controller waits until the next cycle for data storage. take. Zhang Chi t Guan Jia Pi (cNS) A4 Miscellaneous (21Q > 1 -1 ^ ----: --------- install --- (Please read the precautions on the back page first)-line · 561416 A8B8C8D8 #, patent application scope 7 · Dynamic memory configuration < electronic peripheral card as described in item 4 of the patent application scope, wherein the first, second and third substrate registers are set by Yuanyuan The microcontroller is planned to have different or the same 値. 8. An electronic peripheral card with dynamic memory configuration as described in item 4 of the scope of patent application, wherein the data output line of the memory is directly connected to the first The second DMA controller and microcontroller. 9 · An electronic peripheral card with a dynamic memory configuration as described in item 1 of Shen Qing's patent scope, wherein the memory is a static random access memory. 0 · The electronic peripheral card with dynamic memory configuration as described in item 1 of the scope of patent application, wherein the data processing module is a flash memory module. • I ^ ----: --- ------ Equipment --- (Please read the precautions on the back page first) Order · --- Line · Employee Consumption of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 14 This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm)