JPS6474652A - Detection of board mounting - Google Patents

Detection of board mounting

Info

Publication number
JPS6474652A
JPS6474652A JP23143087A JP23143087A JPS6474652A JP S6474652 A JPS6474652 A JP S6474652A JP 23143087 A JP23143087 A JP 23143087A JP 23143087 A JP23143087 A JP 23143087A JP S6474652 A JPS6474652 A JP S6474652A
Authority
JP
Japan
Prior art keywords
board
slot
mounting
backboard
detection
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
JP23143087A
Other languages
Japanese (ja)
Inventor
Fumio Shimada
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP23143087A priority Critical patent/JPS6474652A/en
Publication of JPS6474652A publication Critical patent/JPS6474652A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling

Abstract

PURPOSE:To recognize mounting slot positions of boards by setting codes corresponding to slot positions on a backboard and reading out codes through an interface board mounted on slots. CONSTITUTION:A code number designated by a slot number designating circuit 5 on a backboard 1 is outputted to a data bus 4 of the backboard 1 through an interface board 6 inserted to the slot. In case of detection of board mounting of an extended slot, a CPU board retrieves mounting for each board address prescribed in the system and reads board classification data and mounting slot number data at the time of detecting the board of address coincidence. Thus, the slot number is read out through the interface board mounted on the slot to recognize the mounting slot position of the board.
JP23143087A 1987-09-16 1987-09-16 Detection of board mounting Pending JPS6474652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23143087A JPS6474652A (en) 1987-09-16 1987-09-16 Detection of board mounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23143087A JPS6474652A (en) 1987-09-16 1987-09-16 Detection of board mounting

Publications (1)

Publication Number Publication Date
JPS6474652A true JPS6474652A (en) 1989-03-20

Family

ID=16923442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23143087A Pending JPS6474652A (en) 1987-09-16 1987-09-16 Detection of board mounting

Country Status (1)

Country Link
JP (1) JPS6474652A (en)

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