JPS5453936A - Failure detection unit - Google Patents

Failure detection unit

Info

Publication number
JPS5453936A
JPS5453936A JP11995677A JP11995677A JPS5453936A JP S5453936 A JPS5453936 A JP S5453936A JP 11995677 A JP11995677 A JP 11995677A JP 11995677 A JP11995677 A JP 11995677A JP S5453936 A JPS5453936 A JP S5453936A
Authority
JP
Japan
Prior art keywords
failure detection
failure
signal
counter
detection mode
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.)
Granted
Application number
JP11995677A
Other languages
Japanese (ja)
Other versions
JPS5942340B2 (en
Inventor
Shuichi Senda
Takashi Domoto
Yoshiyuki Futahashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP52119956A priority Critical patent/JPS5942340B2/en
Publication of JPS5453936A publication Critical patent/JPS5453936A/en
Publication of JPS5942340B2 publication Critical patent/JPS5942340B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To perform the failure detection of the terminal unit, by constituting the failure detection mode blocking the data delivery from the terminal unit.
CONSTITUTION: The unit adds the counter 16-2' by one bit to the low rank of the interrupt retrieval counter 16-1 by one bit and it is used as the lock signal 22'. Further, the lock signal 22' is not used at the terminal device 12 but used as the output block signal of the decoder 20 in the control section 7. The count value of the counter 16-1 consists of the failure detection mode A and the interrupt detection mode B. The output 33 of the failure detection flip flop 37' is the failure report signal to the central processing unit 1, which blocks the failure detection by locking the inhibit gate 34 until the failure flip flop clear signal 35 is incoming
COPYRIGHT: (C)1979,JPO&Japio
JP52119956A 1977-10-07 1977-10-07 Failure detection device Expired JPS5942340B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52119956A JPS5942340B2 (en) 1977-10-07 1977-10-07 Failure detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52119956A JPS5942340B2 (en) 1977-10-07 1977-10-07 Failure detection device

Publications (2)

Publication Number Publication Date
JPS5453936A true JPS5453936A (en) 1979-04-27
JPS5942340B2 JPS5942340B2 (en) 1984-10-15

Family

ID=14774352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52119956A Expired JPS5942340B2 (en) 1977-10-07 1977-10-07 Failure detection device

Country Status (1)

Country Link
JP (1) JPS5942340B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182043A (en) * 1984-09-27 1986-04-25 Aisin Warner Ltd Endless belt for transmission
JPH037630Y2 (en) * 1985-12-05 1991-02-26
JPS62180138A (en) * 1986-02-04 1987-08-07 Nissan Motor Co Ltd Transmission belt

Also Published As

Publication number Publication date
JPS5942340B2 (en) 1984-10-15

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