JPS648453A - Trace system for multiprocessor system - Google Patents

Trace system for multiprocessor system

Info

Publication number
JPS648453A
JPS648453A JP62164933A JP16493387A JPS648453A JP S648453 A JPS648453 A JP S648453A JP 62164933 A JP62164933 A JP 62164933A JP 16493387 A JP16493387 A JP 16493387A JP S648453 A JPS648453 A JP S648453A
Authority
JP
Japan
Prior art keywords
bus control
bus
signal
processor
trace
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
JP62164933A
Other languages
Japanese (ja)
Inventor
Satoru Kitazawa
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.)
PFU Ltd
Original Assignee
PFU 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 PFU Ltd filed Critical PFU Ltd
Priority to JP62164933A priority Critical patent/JPS648453A/en
Publication of JPS648453A publication Critical patent/JPS648453A/en
Pending legal-status Critical Current

Links

Landscapes

  • Debugging And Monitoring (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To allow only a tracer to trace the operation of plural processors by converting an internal bus control request outputted from a processor into an external bus control request, sending the converted request to a bus control part and converting an external bus control permission outputted from the bus control part into an internal bus control permission. CONSTITUTION:In a trace mode, a processor 16 is turned on, an internal bus control request signal is outputted and a signal converting means TR turns on a signal on an external bus control request signal line BR2. Then, the bus control part 15 checks whether a processor 11 uses a bus MB or not, and if the bus MB is not used, turns on a signal on an external bus control permission signal line BA2 and a bus connecting means CN connects the bus LB to the bus MB. When a signal on the signal line BA2 is turned on, an internal bus control permission signal is turned on and the processor 16 sends an address, data, etc., to the bus LB. Since the buses LB, MB are connected to each other, two signals are entered into the tracer 14.
JP62164933A 1987-06-30 1987-06-30 Trace system for multiprocessor system Pending JPS648453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164933A JPS648453A (en) 1987-06-30 1987-06-30 Trace system for multiprocessor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164933A JPS648453A (en) 1987-06-30 1987-06-30 Trace system for multiprocessor system

Publications (1)

Publication Number Publication Date
JPS648453A true JPS648453A (en) 1989-01-12

Family

ID=15802599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164933A Pending JPS648453A (en) 1987-06-30 1987-06-30 Trace system for multiprocessor system

Country Status (1)

Country Link
JP (1) JPS648453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008071093A (en) * 2006-09-13 2008-03-27 Fujitsu Ltd Multiprocessor system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008071093A (en) * 2006-09-13 2008-03-27 Fujitsu Ltd Multiprocessor system

Similar Documents

Publication Publication Date Title
AU590626B2 (en) Method and apparatus for implementing a bus protocol
JPS648453A (en) Trace system for multiprocessor system
JPS5622160A (en) Data processing system having additional processor
DE3277424D1 (en) Coupler for processors
JPS5750037A (en) Data transfer system
JPS6479850A (en) Effective using method for bus
JPS6281145U (en)
JPS5552130A (en) Information processing unit
JPS6284845U (en)
JPS57168318A (en) Data transmitting device
JPS5672725A (en) Bus control system
JPS5515521A (en) Computer combination system
JPS5652431A (en) Bus request control system
JPS6368054U (en)
JPS6392956U (en)
JPS57191757A (en) Trouble reporting system for multiprocessor system
JPS5793455A (en) Backup system for operating device
JPS553253A (en) Data transmission device
JPS6384650U (en)
JPH0455654U (en)
KR960018929A (en) Bus module for time-sharing backplane bus
JPS63114349U (en)
JPS60116758U (en) data transfer control device
JPH0267441U (en)
JPS6417537A (en) Data transmission equipment