JPS6380601U - - Google Patents
Info
- Publication number
- JPS6380601U JPS6380601U JP17248886U JP17248886U JPS6380601U JP S6380601 U JPS6380601 U JP S6380601U JP 17248886 U JP17248886 U JP 17248886U JP 17248886 U JP17248886 U JP 17248886U JP S6380601 U JPS6380601 U JP S6380601U
- Authority
- JP
- Japan
- Prior art keywords
- microprocessor
- output port
- input
- command
- processing device
- 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
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は、この考案の一実施例を示すワンルー
プコントローラの入出力部を示すブロツク図、第
２図は、従来のワンループコントローラの入出力
部を示すブロツク図である。
１：ＣＰＵ、２：パラレルＩ／Ｏ用のプログラ
マブルＬＳＩ、３：状態検出用のプログラマブル
ＬＳＩ、４：プルアツプ抵抗。
FIG. 1 is a block diagram showing the input/output section of a one-loop controller showing an embodiment of this invention, and FIG. 2 is a block diagram showing the input/output section of a conventional one-loop controller. 1: CPU, 2: Programmable LSI for parallel I/O, 3: Programmable LSI for status detection, 4: Pull-up resistor.
Claims (1)
サに結合され、マイクロプロセツサからの指令に
より入力ポートあるいは出力ポートとして選択設
定される入出力ポートを含むデジタル処理装置に
おいて、 前記入出力ポートの設定状態を前記マイクロプ
ロセツサに取込む回路と、前記設定状態がリセツ
ト状態にある場合に、前記入出力ポートに再選択
設定のための指令を入力する手段とを備えたこと
を特徴とするデジタル処理装置。[Claims for Utility Model Registration] In a digital processing device including a microprocessor and an input/output port coupled to the microprocessor and selectively set as an input port or an output port according to a command from the microprocessor, It is characterized by comprising a circuit for importing the setting state of the output port into the microprocessor, and means for inputting a command for re-selection setting to the input/output port when the setting state is in the reset state. A digital processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17248886U JPS6380601U (en) | 1986-11-10 | 1986-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17248886U JPS6380601U (en) | 1986-11-10 | 1986-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6380601U true JPS6380601U (en) | 1988-05-27 |
Family
ID=31109069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17248886U Pending JPS6380601U (en) | 1986-11-10 | 1986-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380601U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58155461A (en) * | 1982-03-11 | 1983-09-16 | Mitsubishi Electric Corp | Abnormal state processing mechainsm of microcomputer |
| JPS60126739A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Malfunction preventing circuit of programmable ic |
| JPS60126738A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Malfunction prevention circuit of programmable ic |
-
1986
- 1986-11-10 JP JP17248886U patent/JPS6380601U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58155461A (en) * | 1982-03-11 | 1983-09-16 | Mitsubishi Electric Corp | Abnormal state processing mechainsm of microcomputer |
| JPS60126739A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Malfunction preventing circuit of programmable ic |
| JPS60126738A (en) * | 1983-12-14 | 1985-07-06 | Matsushita Electric Works Ltd | Malfunction prevention circuit of programmable ic |
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