JPS55162155A - Interrupting circuit of microcomputer - Google Patents

Interrupting circuit of microcomputer

Info

Publication number
JPS55162155A
JPS55162155A JP7101979A JP7101979A JPS55162155A JP S55162155 A JPS55162155 A JP S55162155A JP 7101979 A JP7101979 A JP 7101979A JP 7101979 A JP7101979 A JP 7101979A JP S55162155 A JPS55162155 A JP S55162155A
Authority
JP
Japan
Prior art keywords
signal
interruption
counter
active
processing part
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
Application number
JP7101979A
Other languages
Japanese (ja)
Inventor
Hidekazu Yabuuchi
Takashi Sakao
Kazuaki Mayumi
Yoshiaki Daimatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7101979A priority Critical patent/JPS55162155A/en
Publication of JPS55162155A publication Critical patent/JPS55162155A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain an interrupting circuit with the large performance of removing noises by accepting as a real insterruption only an interruption signal which becomes active while its time width exceeding set one.
CONSTITUTION: Once master reset signal 10 of the microcomputer is activated, interruption processing part 8 activates reset signal 9 to reset FF5. Consequently, interruption control signal 7 becomes inactive and processing part 8 is ready to accept the interruption. Output 6 of FF5 is also inactive and interruption signal 12 is inverted by gate 11 and added to reset signal 4 of counter 1. Then, when signal 12 is activated, counter 1 starts counting clocks 2 and after signal 12 stays active until carry signal 3 becomes active, signal 3 sets FF5 and output signal 6 interrupts the counting of counter 1 to activate signal 7, starting processing part 8. When the time when signal 12 is active is shorter than set width, signal 3 never becomes active and FF5 is not set, so that the interruption will never be accepted.
COPYRIGHT: (C)1980,JPO&Japio
JP7101979A 1979-06-05 1979-06-05 Interrupting circuit of microcomputer Pending JPS55162155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7101979A JPS55162155A (en) 1979-06-05 1979-06-05 Interrupting circuit of microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7101979A JPS55162155A (en) 1979-06-05 1979-06-05 Interrupting circuit of microcomputer

Publications (1)

Publication Number Publication Date
JPS55162155A true JPS55162155A (en) 1980-12-17

Family

ID=13448379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7101979A Pending JPS55162155A (en) 1979-06-05 1979-06-05 Interrupting circuit of microcomputer

Country Status (1)

Country Link
JP (1) JPS55162155A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110242A (en) * 1984-11-02 1986-05-28 Sanyo Electric Co Ltd Method for detecting interrupt signal of microcomputer
JPS62219030A (en) * 1985-12-13 1987-09-26 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Computer having interrupt program
JPS62255280A (en) * 1986-04-30 1987-11-07 Komatsu Ltd Steering gear
JPS62183251U (en) * 1986-05-12 1987-11-20
JPS62269240A (en) * 1986-05-16 1987-11-21 Sharp Corp Noise eliminating device
JPS63236136A (en) * 1987-03-24 1988-10-03 Fujitsu Ten Ltd Input filter
US7584381B2 (en) 2005-03-25 2009-09-01 Seiko Epson Corporation Semiconductor integrated circuit device, debug system, microcomputer, and electronic apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112239A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Noise elimination circuit
JPS5486244A (en) * 1977-12-21 1979-07-09 Nec Corp Information processor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112239A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Noise elimination circuit
JPS5486244A (en) * 1977-12-21 1979-07-09 Nec Corp Information processor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110242A (en) * 1984-11-02 1986-05-28 Sanyo Electric Co Ltd Method for detecting interrupt signal of microcomputer
JPS62219030A (en) * 1985-12-13 1987-09-26 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Computer having interrupt program
JPS62255280A (en) * 1986-04-30 1987-11-07 Komatsu Ltd Steering gear
JPS62183251U (en) * 1986-05-12 1987-11-20
JPS62269240A (en) * 1986-05-16 1987-11-21 Sharp Corp Noise eliminating device
JPS63236136A (en) * 1987-03-24 1988-10-03 Fujitsu Ten Ltd Input filter
US7584381B2 (en) 2005-03-25 2009-09-01 Seiko Epson Corporation Semiconductor integrated circuit device, debug system, microcomputer, and electronic apparatus

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