KR970056628A - Memory control device and method - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

An apparatus and method for controlling a memory of a private exchange are disclosed.

2. The technical problem to be solved by the invention

The present invention provides an apparatus and method for controlling flash memory by reducing access time of a storage medium in a private exchange and replacing the flash memory with a smaller volume.

3. Solution of the Invention

A method of managing a program and data in a private exchange system in which a memory access control unit and a memory control unit are directly connected to a microprocessor and the memory control unit is connected to a memory having a small volume is located in the microprocessor through the memory control unit. After outputting the corresponding address and the save / read / erase command signal, which is information, the memory enters a store / read / erase mode; and after the fresh memory has entered the storage mode, the direct memory access controller may further control the microprocessor. Storing data in the memory upon inputting data location information and an access control signal to be stored in another memory; and after the memory is in a read mode, the direct memory access control unit stores the data of the memory in the microprocessor. In another memory Controlling the memory controller when inputting storage location information and the access control signal; performing a erase operation of the memory by the microprocessor after the memory is in an erase mode; Under the control of the direct memory access control unit, a selection signal indicating control when the storage / read / erase operation is performed at the corresponding address, a storage signal for storage, a read signal for reading / erase for reading, and a save / read Storing the data read from the memory in another memory by the direct memory access control unit in the read mode; and storing the data based on an address signal as information for erasing and a command signal as operation performance information. The memory transmits an operation completion interrupt to the memory controller after performing the operation. It said memory controller comprises a step of transmitting to the microprocessor to enter the operation completion interrupt.

In addition, the apparatus for controlling the memory in a system using a smaller memory performs the overall control operation of the system, the microprocessor to set the operation position information and the operation mode of the storage / read / erase of the memory, A direct memory access controller for inputting an execution signal of the microprocessor to generate a control signal, reading and outputting storage data from another memory based on the execution signal, and transferring ripe data to another memory; And a memory controller configured to store operating position information of the processor and set to a fraud store / read / erase mode and perform / store / read according to the position information based on a control signal of the direct memory access controller.

4. Important uses of the invention

In a private exchange, a storage medium is implemented to control the use of a small amount of flash memory.

Description

Memory control device and method

Since this is an open matter, no full text was included.

1 is a block diagram of a general private exchange,

2 is a block diagram of a main control module and a memory unit in the present invention;

3 is a diagram illustrating a processing procedure for controlling a flash memory by a microprocessor, a direct memory access controller, and a flash memory controller in the present invention.

Claims (4)

A method for managing programs and data in a private exchange system in which a memory access control unit and a memory control unit are directly connected to a microprocessor, and the memory control unit and a memory having a small volume are connected, wherein the memory is controlled through the memory control unit in the microprocessor. The memory is stored / read / erase mode after outputting a corresponding address and a storage / read / erase command signal corresponding to position information of the memory; and the direct memory access controller is configured to control the microprocessor after the flash memory is put into a storage mode. In the step of inputting the location information and the access control signal of the data to be stored in another memory in the data storage process in the memory, and after the memory enters the read mode, the direct memory access control unit in the microprocessor of the memory Another to store data Controlling the memory controller when inputting storage location information and the access control signal; performing a erase operation of the memory by the microprocessor after the memory is in an erase mode; and Is a selection signal for informing control when performing the storage / read / erase operation on the main gun under the control of the direct memory access controller, a storage signal for storage / a read signal / erase for reading, and storage Storing the data read from the memory in a read mode in the memory mode, and storing the data read from the memory in another memory by the direct memory access controller. Process, and after performing the operation, the operation completion interrupt to the memory controller. The memory controller when memory control songhal method characterized by constituted by any process of transmitting to the microprocessor to enter the operation completion interrupt. The method of claim 1, wherein the small memory is a flash memory. An apparatus for controlling the memory in a system using a smaller memory, the apparatus comprising: a microprocessor for performing overall control operations of the system and setting operation position information of the memory and an operation mode of storage / read / erase; A direct memory access control unit for generating a control signal by inputting an execution signal of the microprocessor, reading and outputting stored data from another memory based on the execution signal, and transmitting the read data to another memory; It stores the operation position information of the microprocessor, is set to the storage / diary / erase mode, the memory control means for performing the storage / reading in accordance with the position information based on the control signal of the direct memory access control unit Memory controller. 4. The memory controller of claim 3, wherein the memory is implemented as a flash memory. ※ Note: The disclosure is based on the initial application.