JPS5494252A - Scan in out controller - Google Patents

Scan in out controller

Info

Publication number
JPS5494252A
JPS5494252A JP56178A JP56178A JPS5494252A JP S5494252 A JPS5494252 A JP S5494252A JP 56178 A JP56178 A JP 56178A JP 56178 A JP56178 A JP 56178A JP S5494252 A JPS5494252 A JP S5494252A
Authority
JP
Japan
Prior art keywords
main control
control
scan
subcontrol
information
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
JP56178A
Other languages
Japanese (ja)
Other versions
JPS5953585B2 (en
Inventor
Hiroshi Murayama
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 JP53000561A priority Critical patent/JPS5953585B2/en
Publication of JPS5494252A publication Critical patent/JPS5494252A/en
Publication of JPS5953585B2 publication Critical patent/JPS5953585B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To simultaneously perform the information return and checking, by providing the means returning the scan in out control information placed at the subcontroller to the main control, and the means comparing the information returned to the main control with original information, in the control used for the data processor.
CONSTITUTION: The main control 1 controlling the entire operation of scan in out such as registers required for the processor placed in the data processor, and the subcontrol 2 providing the subcontroller register 4 holding the control information transferred from the main control 1 and placed in dispersion for a plurality number, are provided. Ths subcontrol 2 of the control circuit with this constitution is provided with the selection circuit 6 transferring the control information transferred from the main control 1 held at the register 4 to the main control 1 as scan in out data transfer. Further, the main control 1 is provided with the comparison circuit 7 comparing the control information returned from the subcontrol 2 with original control information, allowing to perform the normality check of the subcontrol 2 and the data transfer simultaneously.
COPYRIGHT: (C)1979,JPO&Japio
JP53000561A 1978-01-09 1978-01-09 Scan-in-out control device Expired JPS5953585B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53000561A JPS5953585B2 (en) 1978-01-09 1978-01-09 Scan-in-out control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53000561A JPS5953585B2 (en) 1978-01-09 1978-01-09 Scan-in-out control device

Publications (2)

Publication Number Publication Date
JPS5494252A true JPS5494252A (en) 1979-07-25
JPS5953585B2 JPS5953585B2 (en) 1984-12-26

Family

ID=11477127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53000561A Expired JPS5953585B2 (en) 1978-01-09 1978-01-09 Scan-in-out control device

Country Status (1)

Country Link
JP (1) JPS5953585B2 (en)

Also Published As

Publication number Publication date
JPS5953585B2 (en) 1984-12-26

Similar Documents

Publication Publication Date Title
JPS5494252A (en) Scan in out controller
JPS5582358A (en) Error collection system of central processing unit
JPS55164918A (en) Initial program loading system
JPS55157027A (en) Input and output transfer control unit
JPS56143583A (en) Buffer memory control system
JPS5587220A (en) Interface controller
JPS5638631A (en) Data transfer apparatus
JPS54145447A (en) Input-output control system
JPS52129241A (en) Memory control system
JPS56100586A (en) Ipl system in decentralized processing electronic exchanger
JPS51144137A (en) Input/output data control unit
JPS55131829A (en) Transfer system of shared memory under communication control
JPS5619165A (en) Data processing system
JPS53103332A (en) Input/output control system for information processor
JPS53135540A (en) Display system for output data setting at sequnce programer
JPS5451427A (en) Memory unit
JPS57143670A (en) Parallel processing system
JPS5488749A (en) Information processor
JPS6448164A (en) Processing end interrupt control system
JPS55118163A (en) Memory device
JPS643706A (en) Controller
JPS57114926A (en) Terminal control system
JPS5368920A (en) Control system for character pattern transmission
JPS56135260A (en) Inter-processor information transfer system
JPS55134426A (en) Input/output control system