JPS5647827A - Output signal controlling circuit of microcomputer system - Google Patents
Output signal controlling circuit of microcomputer systemInfo
- Publication number
- JPS5647827A JPS5647827A JP12389279A JP12389279A JPS5647827A JP S5647827 A JPS5647827 A JP S5647827A JP 12389279 A JP12389279 A JP 12389279A JP 12389279 A JP12389279 A JP 12389279A JP S5647827 A JPS5647827 A JP S5647827A
- Authority
- JP
- Japan
- Prior art keywords
- output signal
- buffer
- controlling circuit
- signal controlling
- microcomputer system
- 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
Landscapes
- Debugging And Monitoring (AREA)
- Microcomputers (AREA)
Abstract
PURPOSE: To prevent a malfunction by closing a buffer provided between the transistor array and the peripheral control LSI, at the making time of power.
CONSTITUTION: At the making time of power, the peripheral control LSI11 is reset by the reset function, and at the same time the flip-flop (FF)15 is set. Resulting from the foregoing, the buffer 16 becomes a cutoff state, and a leak current does not flow into the transistor array 10. Accordingly, the external device connected to the array 10 is not turned on. A signal of the address bus 5 resets the FF15 through the decoder 6, the buffer conducts, and the external device is controlled by a data.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12389279A JPS5647827A (en) | 1979-09-28 | 1979-09-28 | Output signal controlling circuit of microcomputer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12389279A JPS5647827A (en) | 1979-09-28 | 1979-09-28 | Output signal controlling circuit of microcomputer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647827A true JPS5647827A (en) | 1981-04-30 |
Family
ID=14871922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12389279A Pending JPS5647827A (en) | 1979-09-28 | 1979-09-28 | Output signal controlling circuit of microcomputer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647827A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617137A (en) * | 1984-06-19 | 1986-01-13 | Sanko Kuki Sochi Kk | Operating method of differential pressure intercepting transfer device for pulverulent granule |
-
1979
- 1979-09-28 JP JP12389279A patent/JPS5647827A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617137A (en) * | 1984-06-19 | 1986-01-13 | Sanko Kuki Sochi Kk | Operating method of differential pressure intercepting transfer device for pulverulent granule |
JPH0127933B2 (en) * | 1984-06-19 | 1989-05-31 | Sanko Air Plant |
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