JPS6343246U - - Google Patents

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Publication number
JPS6343246U
JPS6343246U JP13377586U JP13377586U JPS6343246U JP S6343246 U JPS6343246 U JP S6343246U JP 13377586 U JP13377586 U JP 13377586U JP 13377586 U JP13377586 U JP 13377586U JP S6343246 U JPS6343246 U JP S6343246U
Authority
JP
Japan
Prior art keywords
data
circuit
processor
bit
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13377586U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13377586U priority Critical patent/JPS6343246U/ja
Publication of JPS6343246U publication Critical patent/JPS6343246U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の構成を示すブロツク図、第2
図は本考案に係るデータ変更回路の一例を示す回
路図、第3図はメモリのアクセス処理系全体の構
成例を示すブロツク図である。 1…プロセツサ、2(1),2(2),…,2(h)
…1ビツト構成メモリ、3…メモリ、4(1),4(
2),…,4(h)…アクセス禁止回路、5(1),
5(2),…,5(h)…ビツトデータ設定回路。
Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure is a circuit diagram showing an example of a data modification circuit according to the present invention, and FIG. 3 is a block diagram showing an example of the configuration of the entire memory access processing system. 1...Processor, 2(1), 2(2),..., 2(h)
...1 bit configuration memory, 3...memory, 4(1), 4(
2),...,4(h)...Access prohibited circuit, 5(1),
5(2),...,5(h)...Bit data setting circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] プロセツサからの指令に基づき独立してアクセ
ス可能な1ビツト構成メモリを複数備えてなるメ
モリに蓄えられたデータをプロセツサからの指令
に基づいて書換えるデータ変更回路であつて、上
記各1ビツト構成メモリ毎に、所定の指令信号に
基づいてプロセツサからのライトアクセスを禁止
するアクセス禁止回路と、書込みビツトデータを
設定するビツトデータ設定回路とを備えたことを
特徴とするメモリのデータ変更回路。
A data modification circuit that rewrites data stored in a memory comprising a plurality of independently accessible 1-bit configuration memories based on instructions from a processor, the data changing circuit rewriting each of the 1-bit configuration memories based on instructions from the processor. 1. A data change circuit for a memory, comprising: an access prohibition circuit that prohibits write access from a processor based on a predetermined command signal; and a bit data setting circuit that sets write bit data.
JP13377586U 1986-09-02 1986-09-02 Pending JPS6343246U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13377586U JPS6343246U (en) 1986-09-02 1986-09-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13377586U JPS6343246U (en) 1986-09-02 1986-09-02

Publications (1)

Publication Number Publication Date
JPS6343246U true JPS6343246U (en) 1988-03-23

Family

ID=31034398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13377586U Pending JPS6343246U (en) 1986-09-02 1986-09-02

Country Status (1)

Country Link
JP (1) JPS6343246U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141087A (en) * 1981-02-25 1982-09-01 Fujitsu Ltd Write system for storage device
JPS58125284A (en) * 1982-01-20 1983-07-26 Hitachi Ltd Memory access method
JPS59213083A (en) * 1983-05-18 1984-12-01 Sanyo Electric Co Ltd Memory writing method
JPS607676A (en) * 1983-06-25 1985-01-16 Fujitsu Ltd Memory writing circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141087A (en) * 1981-02-25 1982-09-01 Fujitsu Ltd Write system for storage device
JPS58125284A (en) * 1982-01-20 1983-07-26 Hitachi Ltd Memory access method
JPS59213083A (en) * 1983-05-18 1984-12-01 Sanyo Electric Co Ltd Memory writing method
JPS607676A (en) * 1983-06-25 1985-01-16 Fujitsu Ltd Memory writing circuit

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