JPS5996611U - Direct memory access method - Google Patents
Direct memory access methodInfo
- Publication number
- JPS5996611U JPS5996611U JP19352682U JP19352682U JPS5996611U JP S5996611 U JPS5996611 U JP S5996611U JP 19352682 U JP19352682 U JP 19352682U JP 19352682 U JP19352682 U JP 19352682U JP S5996611 U JPS5996611 U JP S5996611U
- Authority
- JP
- Japan
- Prior art keywords
- memory access
- direct memory
- access method
- terminal
- data
- 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
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のダイレクトメモリアクセス方式を示すブ
ロック図、第２図は本考案の一実施例のブロック図であ
る。
８・・・切替器。FIG. 1 is a block diagram showing a conventional direct memory access method, and FIG. 2 is a block diagram of an embodiment of the present invention. 8...Switcher.
Claims (1)
セス方式において、ダイレクトメモリアクセス用メモリ
のアドレス端子及びデータ端子がそれぞれ接続される相
手方を切替えるスイッチを有し、前記メモリがマイクロ
コンピュータとデータの入出力を行う時は、前記スイッ
チは、前記ア、 ドレス端子及び前記デニタ端子を前
記マイクロコンピュータのアドレスバス及びデータバス
にそれぞれ接続し、ダイレクトメモリアク、セス動作時
は、前記スイッチは、前記アドレス端子をダイレクトメ
モリアクセス制御器に、前記データ端子を入出力装置に
それぞれ直接接続することを特徴とするダイレクトメモ
リアクセス方式。In the direct memory access method of a microcomputer system, the address terminal and the data terminal of the memory for direct memory access each have a switch for switching the other party to which the memory is connected, and when the memory inputs/outputs data with the microcomputer, the A switch connects the address terminal and the monitor terminal to an address bus and a data bus of the microcomputer, respectively, and during a direct memory access operation, the switch connects the address terminal to a direct memory access controller. , a direct memory access method characterized in that each of the data terminals is directly connected to an input/output device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19352682U JPS5996611U (en) | 1982-12-21 | 1982-12-21 | Direct memory access method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19352682U JPS5996611U (en) | 1982-12-21 | 1982-12-21 | Direct memory access method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5996611U true JPS5996611U (en) | 1984-06-30 |
Family
ID=30416214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19352682U Pending JPS5996611U (en) | 1982-12-21 | 1982-12-21 | Direct memory access method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5996611U (en) |
-
1982
- 1982-12-21 JP JP19352682U patent/JPS5996611U/en active Pending
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