JPS54124929A - Timer unit - Google Patents

Timer unit

Info

Publication number
JPS54124929A
JPS54124929A JP3341478A JP3341478A JPS54124929A JP S54124929 A JPS54124929 A JP S54124929A JP 3341478 A JP3341478 A JP 3341478A JP 3341478 A JP3341478 A JP 3341478A JP S54124929 A JPS54124929 A JP S54124929A
Authority
JP
Japan
Prior art keywords
register
counter ctr
program
clock
microprogram
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
JP3341478A
Other languages
Japanese (ja)
Other versions
JPS6024968B2 (en
Inventor
Tadahiro Wada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53033414A priority Critical patent/JPS6024968B2/en
Publication of JPS54124929A publication Critical patent/JPS54124929A/en
Publication of JPS6024968B2 publication Critical patent/JPS6024968B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To obtain a miniature unit which can clock a long period by simple constitution and perform a complex process by a program, by combining the timer of hardware with that of software.
CONSTITUTION: Counter CTR and carry register CR.RG as hard ware are both provided, and counter CTR is actuated and stopped by a microprogram. It is made possible to vary the period of clock CLK inputted to counter CTR by a microprogram. Once carry CR is outputted to counter CTR, register CR.RG is set, counter CTR continues its count-up operation even during this setting, and the program is informed that register CR.RG has been set. The contents of this register CR.RG are referred to by the program, thereby making it possible to clock time.
COPYRIGHT: (C)1979,JPO&Japio
JP53033414A 1978-03-22 1978-03-22 timer device Expired JPS6024968B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53033414A JPS6024968B2 (en) 1978-03-22 1978-03-22 timer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53033414A JPS6024968B2 (en) 1978-03-22 1978-03-22 timer device

Publications (2)

Publication Number Publication Date
JPS54124929A true JPS54124929A (en) 1979-09-28
JPS6024968B2 JPS6024968B2 (en) 1985-06-15

Family

ID=12385911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53033414A Expired JPS6024968B2 (en) 1978-03-22 1978-03-22 timer device

Country Status (1)

Country Link
JP (1) JPS6024968B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58146944A (en) * 1982-02-26 1983-09-01 Toshiba Corp Processor for information
JPS58214951A (en) * 1982-06-08 1983-12-14 Fujitsu Ten Ltd Time counting system using free running counter
JPS59161716A (en) * 1983-03-04 1984-09-12 Nec Corp Timer control system of information processor
JPS62266624A (en) * 1986-05-14 1987-11-19 Nec Corp Counter device
JPH02193097A (en) * 1989-10-30 1990-07-30 Seiko Epson Corp Real time clock

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58146944A (en) * 1982-02-26 1983-09-01 Toshiba Corp Processor for information
JPS58214951A (en) * 1982-06-08 1983-12-14 Fujitsu Ten Ltd Time counting system using free running counter
JPS59161716A (en) * 1983-03-04 1984-09-12 Nec Corp Timer control system of information processor
JPS62266624A (en) * 1986-05-14 1987-11-19 Nec Corp Counter device
JPH0531775B2 (en) * 1986-05-14 1993-05-13 Nippon Electric Co
JPH02193097A (en) * 1989-10-30 1990-07-30 Seiko Epson Corp Real time clock

Also Published As

Publication number Publication date
JPS6024968B2 (en) 1985-06-15

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