JPS5776628A - Keyboard controller - Google Patents

Keyboard controller

Info

Publication number
JPS5776628A
JPS5776628A JP55153224A JP15322480A JPS5776628A JP S5776628 A JPS5776628 A JP S5776628A JP 55153224 A JP55153224 A JP 55153224A JP 15322480 A JP15322480 A JP 15322480A JP S5776628 A JPS5776628 A JP S5776628A
Authority
JP
Japan
Prior art keywords
cpu
reset
key
counter
generates
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
JP55153224A
Other languages
Japanese (ja)
Inventor
Kunihiro Nagura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55153224A priority Critical patent/JPS5776628A/en
Publication of JPS5776628A publication Critical patent/JPS5776628A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0227—Cooperation and interconnection of the input arrangement with other functional units of a computer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To minimize the infuence of changes in the kind, arrangement, etc., of a repeat key upon hardware by adding commands sent from a CPU and small-scale hardwaring for realize them. CONSTITUTION:When a CPU sends a repeat permission signal (RG)1, a flip-flop (FF)12 is set. Then, a counter 14 starts counting up. When the output (a) of the counter 14 goes up to a ''1'', the output of an AND OR gate 15 goes down to a ''0'' and when a key is still pressed at this time, an FF11 is reset. When the CPU generates an RG2, the same operation are performed. As the FF11 is reset, scanning operation is restarted and when the key is still pressed at this time, the FF11 is set to interrupt the CPU. Since FFs 12 and 13 are both reset when the FF11 is reset, the CPU when to utilize a repeating function successively reads data by interruption and then generates the RGs 1 and 2 again.
JP55153224A 1980-10-31 1980-10-31 Keyboard controller Pending JPS5776628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153224A JPS5776628A (en) 1980-10-31 1980-10-31 Keyboard controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153224A JPS5776628A (en) 1980-10-31 1980-10-31 Keyboard controller

Publications (1)

Publication Number Publication Date
JPS5776628A true JPS5776628A (en) 1982-05-13

Family

ID=15557763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153224A Pending JPS5776628A (en) 1980-10-31 1980-10-31 Keyboard controller

Country Status (1)

Country Link
JP (1) JPS5776628A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241148A (en) * 1984-05-16 1985-11-30 Yokogawa Hokushin Electric Corp Keyboard device
US5916317A (en) * 1996-01-04 1999-06-29 Ball Corporation Metal container body shaping/embossing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60241148A (en) * 1984-05-16 1985-11-30 Yokogawa Hokushin Electric Corp Keyboard device
US5916317A (en) * 1996-01-04 1999-06-29 Ball Corporation Metal container body shaping/embossing

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