JPS61185147U - - Google Patents
Info
- Publication number
- JPS61185147U JPS61185147U JP6625085U JP6625085U JPS61185147U JP S61185147 U JPS61185147 U JP S61185147U JP 6625085 U JP6625085 U JP 6625085U JP 6625085 U JP6625085 U JP 6625085U JP S61185147 U JPS61185147 U JP S61185147U
- Authority
- JP
- Japan
- Prior art keywords
- request
- latching
- dma
- response
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Bus Control (AREA)
Description
第１図は本考案によるＤＭＡ装置の一実施例を
示すブロツク図、第２図は同実施例におけるＤＭ
Ａ装置１のの制御系の一構成例を示すブロツク図
、第３図はＤＭＡ装置における処理内容を示すフ
ローチヤートである。
１……ＤＭＡ装置、２……ソース側Ｉ／Ｏ装置
、３……デイステイネーシヨン側Ｉ／Ｏ装置、Ｂ
Ｆ……ラツチ用バツフア、ＦＦ……フリツプフロ
ツプ。
FIG. 1 is a block diagram showing an embodiment of a DMA device according to the present invention, and FIG. 2 is a DM device in the same embodiment.
FIG. 3 is a block diagram showing an example of the configuration of the control system of the A device 1. FIG. 3 is a flowchart showing the processing contents in the DMA device. 1...DMA device, 2...Source side I/O device, 3...Destination side I/O device, B
F...Latch buffer, FF...Flip-flop.
Claims (1)
送を行なわせるものにおいて、ソース側のＩ／Ｏ
装置から送られてくるデータをソース側からのリ
クエストに応じて受けとり、その受けとつたデー
タをラツチさせる手段と、デイストネーシヨン側
からのリクエストに応じてそのラツチされている
データをデイストネーシヨン側のＩ／Ｏ装置に転
送させる手段とを設けたことを特徴とするＤＭＡ
装置。 In a device that performs data transfer using DMA based on an external request, the I/O on the source side
A means for receiving data sent from the device in response to a request from the source side and latching the received data, and a means for latching the received data in response to a request from the destination side. DMA characterized in that it is provided with means for transmitting data to an I/O device on the side of the system.
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6625085U JPS61185147U (en) | 1985-05-02 | 1985-05-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6625085U JPS61185147U (en) | 1985-05-02 | 1985-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61185147U true JPS61185147U (en) | 1986-11-18 |
Family
ID=30598977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6625085U Pending JPS61185147U (en) | 1985-05-02 | 1985-05-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61185147U (en) |
-
1985
- 1985-05-02 JP JP6625085U patent/JPS61185147U/ja active Pending
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