JPS6199991A - Digital memory device - Google Patents

Abstract

PURPOSE:To write the same data in a lump and at the same time in case of writing the same data in continuous address areas, by providing a write start address signal line and a write end address signal line which have been connected to a memory body, so that an address for starting the write and an address for ending it can be designated. CONSTITUTION:Two kinds of a write start address and a write end address can be designated by a write start address signal line and a write end address signal line. That is to say, on case when write has been designated through a write signal line 2, designated data is written simultaneously through a data signal line 3 on all storage units belonging to the inside of continuous address areas designated through a write start address signal line 5 and a write end address signal line 6. In case when the same address has been designated to the write start address signal line 5 and the write end address signal line 6, data of the data signal line 3 is written on a single storage unit of a memory body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a digital memory device used in a digital computer or the like.

[Conventional technology]

FIG. 2 is a configuration diagram showing a conventional digital memory device. In the figure, 1 is a memory main body, 2 is a write signal line for distinguishing between writing or reading l-, and 3 is a data signal line for writing or reading. , 4 are address signal lines indicating the target to be written or read.

A conventional digital memory device is configured as described above, in which a specific storage unit stored in the memory body 1 is selected by the address signal line 4, and reading is specified through the write signal line 2. Then, the contents of the above storage unit are read out from the data signal line 3. Also, if you specify writing through the write signal line 2 above,
The data on the data signal line 3 is written into the above-mentioned storage unit of the memory main body 1.

[Problem that the invention seeks to solve]

In conventional digital memory devices such as those described above, an address must be specified for each single storage unit during read and write operations, and especially when writing the same data into consecutive address areas, the address must be specified. It is necessary to sequentially add and specify the data, which causes problems in that the writing operation of the same data becomes slow and external address control becomes complicated.

This invention was made in order to solve this problem, and when writing the same data in consecutive address areas, a digital memory device that can write the same data at the same time is used. The purpose is to obtain.

[Means for solving problems]

The digital memory device according to the present invention allows specifying an address to start writing and an address to end writing.
A write start address signal line connected to the memory main body,
A write end address signal line is provided.

[Effect]

In this invention, two types of write start address and write end/end address can be specified using the write start address signal line and the write end address signal line, so it is possible to specify an address range, and it is possible to specify the write start address and the write end/end address. Simultaneous writing into consecutive address areas becomes possible.

〔Example〕

FIG. 1 is a block diagram showing one embodiment of the present invention, and 1 to 1 are block diagrams showing one embodiment of the present invention.
3 is exactly the same as the conventional device described above. In the figure, 5 is a write start address signal line, and 6 is a write end address signal line.

In the digital memory device configured as described above, when reading is specified through the write signal line 2, the write end address signal line 6 has no effect and the memory main body 1, data signal ffJ3, and write start address signal In line 5, the same operation as described for the prior art device takes place. On the other hand, when writing is specified through the write signal line 2, data signals are sent to all storage units belonging to the continuous address area specified through the write start address signal line 5 and write end address signal line 6. The data specified through line 3 are written at the same time. Note that if the same address is specified to the write start address signal line 5 and the write end address signal line 6, the data on the data signal line 3 will be transferred to a single unit of the memory main body 1, as described for the conventional device. written to one storage unit.

〔Effect of the invention〕

As explained above, this invention has a structure in which the write start address signal line and the write end address signal line are connected to the memory main body, so that the write start address and write end address can be specified. Simultaneous writing within the address area is possible, and the writing operation can be performed at high speed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a digital memory device showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional digital memory device. In the figure, 5 is a write start address signal line, and 6 is a write end address signal line. Note that the same reference numerals in each figure indicate the same or corresponding parts. Fig. 1 5: 6 people who wrote the signal at the station Itoizumi 2G: Finished writing A clear signal training Fig. 2

Claims (1)

[Claims] A digital memory device capable of specifying a write start address and a write end address, comprising a write start address signal line and a write end address signal line connected to a memory main body of the memory device, the write start address signal line By specifying the write start address from , and specifying the write end address from the write end address signal line, it is possible to simultaneously write the same data into consecutive address areas of the memory body. Digital memory device.