JPS62158566U - - Google Patents
Info
- Publication number
- JPS62158566U JPS62158566U JP4624286U JP4624286U JPS62158566U JP S62158566 U JPS62158566 U JP S62158566U JP 4624286 U JP4624286 U JP 4624286U JP 4624286 U JP4624286 U JP 4624286U JP S62158566 U JPS62158566 U JP S62158566U
- Authority
- JP
- Japan
- Prior art keywords
- memory access
- direct memory
- access channel
- interface card
- transmits
- 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
- 230000004044 response Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Bus Control (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来のＤＭＡチヤネル接続インタフエー
スカードを使用したシステムの一例を示したブロ
ツク図である。
１……本体制御部、２……外部装置、３……イ
ンタフエースカード、３１〜３４，４３〜４６…
…セレクタ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing an example of a system using a conventional DMA channel connection interface card. 1... Main body control unit, 2... External device, 3... Interface card, 31-34, 43-46...
…selector.
Claims (1)
へ書き込む装置をシステムのダイレクトメモリア
クセスチヤネルへ接続するダイレクトメモリアク
セスチヤネル接続インタフエースカードにおいて
、前記装置がダイレクトメモリアクセスコントロ
ーラに出力するダイレクトメモリアクセス要求及
び同装置がその後出力する前記メモリへの転送デ
ータを伝送するダイレクトメモリアクセスチヤネ
ルを選択設定すると共に、前記ダイレクトメモリ
アクセスチヤネルの使用許可信号を伝送するダイ
レクトメモリアクセス応答チヤネルを選択設定す
るセレクト手段を具備したことを特徴とするダイ
レクトメモリアクセスチヤネル接続インタフエー
スカード。 In a direct memory access channel connection interface card that connects a device that writes data to memory using direct memory access to a system's direct memory access channel, the device outputs a direct memory access request to a direct memory access controller, and the device subsequently It is characterized by comprising a selection means for selecting and setting a direct memory access channel that transmits the transfer data to the memory to be output, and also selecting and setting a direct memory access response channel that transmits a use permission signal of the direct memory access channel. Direct memory access channel connection interface card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4624286U JPS62158566U (en) | 1986-03-31 | 1986-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4624286U JPS62158566U (en) | 1986-03-31 | 1986-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62158566U true JPS62158566U (en) | 1987-10-08 |
Family
ID=30865726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4624286U Pending JPS62158566U (en) | 1986-03-31 | 1986-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62158566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0346034A (en) * | 1989-07-14 | 1991-02-27 | Nec Corp | Information processing system |
| JPH03206528A (en) * | 1989-11-30 | 1991-09-09 | Nec Corp | Information processing system |
-
1986
- 1986-03-31 JP JP4624286U patent/JPS62158566U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0346034A (en) * | 1989-07-14 | 1991-02-27 | Nec Corp | Information processing system |
| JPH03206528A (en) * | 1989-11-30 | 1991-09-09 | Nec Corp | Information processing system |