JPH0214153U - - Google Patents
Info
- Publication number
- JPH0214153U JPH0214153U JP9119488U JP9119488U JPH0214153U JP H0214153 U JPH0214153 U JP H0214153U JP 9119488 U JP9119488 U JP 9119488U JP 9119488 U JP9119488 U JP 9119488U JP H0214153 U JPH0214153 U JP H0214153U
- Authority
- JP
- Japan
- Prior art keywords
- input
- output port
- timing
- receiving side
- transmitting side
- 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 3
Landscapes
- Information Transfer Systems (AREA)
Description
第１図は本考案に係る入出力ポートの一実施例
のブロツク図、第２図は第１図に示す入出力ポー
トの具体的な構成例を示す図、第３図ａ乃至ｄは
第１図、第２図に示した入出力ポートの動作を説
明するためのタイムチヤート、第４図は従来の入
出力ポートのブロツク図、第５図ａ乃至ｄは第４
図に示した入出力ポートの動作を説明するための
タイムチヤートである。
１……入出力ポート、２……ハンドシエーク制
御部、３……リード／ライト制御部、４……リー
ド／ライト制御回路、５，６……タイミング制御
回路、７……ラツチ回路、８……デコーダ、５１
……送信側、５２……受信側、ＳＴＢ，ＳＴＢ′
，ＭＲＥＱ，ＭＲＥＱ′……ストローブ信号、Ｂ
ＵＳＹ′……ビジイ信号、ＡＣＫ′……アクノレ
ツジ信号。
FIG. 1 is a block diagram of one embodiment of the input/output port according to the present invention, FIG. 2 is a diagram showing a specific configuration example of the input/output port shown in FIG. 1, and FIGS. 2, a time chart for explaining the operation of the input/output port shown in FIG. 2, FIG. 4 is a block diagram of a conventional input/output port, and FIGS.
3 is a time chart for explaining the operation of the input/output ports shown in the figure. 1... Input/output port, 2... Handshake control section, 3... Read/write control section, 4... Read/write control circuit, 5, 6... Timing control circuit, 7... Latch circuit, 8... decoder, 51
...Sending side, 52...Receiving side, STB, STB'
, MREQ, MREQ'...Strobe signal, B
USY'...busy signal, ACK'...acknowledge signal.
Claims (1)
エーク制御によつて行なう入出力ポートにおいて
、送信側および／または受信側とのインタフエー
ス部にハンドシエーク制御信号のタイミングを可
変設定するタイミング制御部が設けられているこ
とを特徴とする入出力ポート。 In an input/output port that transfers data from a transmitting side to a receiving side using handshake control, a timing control unit that variably sets the timing of a handshake control signal is provided in an interface unit with the transmitting side and/or the receiving side. An input/output port characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9119488U JPH0214153U (en) | 1988-07-08 | 1988-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9119488U JPH0214153U (en) | 1988-07-08 | 1988-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0214153U true JPH0214153U (en) | 1990-01-29 |
Family
ID=31315682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9119488U Pending JPH0214153U (en) | 1988-07-08 | 1988-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0214153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103980U (en) * | 1977-12-28 | 1979-07-21 |
-
1988
- 1988-07-08 JP JP9119488U patent/JPH0214153U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103980U (en) * | 1977-12-28 | 1979-07-21 |