JPS5559538A - Control carrier trace system for communication control unit - Google Patents

Control carrier trace system for communication control unit

Info

Publication number
JPS5559538A
JPS5559538A JP13266378A JP13266378A JPS5559538A JP S5559538 A JPS5559538 A JP S5559538A JP 13266378 A JP13266378 A JP 13266378A JP 13266378 A JP13266378 A JP 13266378A JP S5559538 A JPS5559538 A JP S5559538A
Authority
JP
Japan
Prior art keywords
trace
trace data
control unit
communication control
order
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
JP13266378A
Other languages
Japanese (ja)
Inventor
Seiji Shimoda
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 JP13266378A priority Critical patent/JPS5559538A/en
Publication of JPS5559538A publication Critical patent/JPS5559538A/en
Pending legal-status Critical Current

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  • Computer And Data Communications (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE: To decrease the order execution time and thus to shorten the process time for trace by carrying out the process with installation of address register AR which stores the trace data into the idle memory, the means which renews the AR with every storage, and others.
CONSTITUTION: In case the interruption occurs at the communication control unit and the trace is given, the trace data is taken out of the circuit control table or the external register. And the order pattern is analyzed at order code analysis part 10. When the order to store the trace data is judged, the trace data is stored in the address shown by trace register Rn(5-3'). After this, the address is increased and renewed, and this result is compared with trace final AR(5-2') at the comparator to decide the memory is traced up to the last. And when the final of the memory is decided, the contents of the head AR in the idle area of AR(5-1') is transferred to Rn(5-3') to prepare for the next trace. As a result, the program steps for the trace data collection within the communication control unit can be shortened.
COPYRIGHT: (C)1980,JPO&Japio
JP13266378A 1978-10-30 1978-10-30 Control carrier trace system for communication control unit Pending JPS5559538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13266378A JPS5559538A (en) 1978-10-30 1978-10-30 Control carrier trace system for communication control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13266378A JPS5559538A (en) 1978-10-30 1978-10-30 Control carrier trace system for communication control unit

Publications (1)

Publication Number Publication Date
JPS5559538A true JPS5559538A (en) 1980-05-06

Family

ID=15086578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13266378A Pending JPS5559538A (en) 1978-10-30 1978-10-30 Control carrier trace system for communication control unit

Country Status (1)

Country Link
JP (1) JPS5559538A (en)

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