JPS5782787A - Real time clock - Google Patents

Real time clock

Info

Publication number
JPS5782787A
JPS5782787A JP55158721A JP15872180A JPS5782787A JP S5782787 A JPS5782787 A JP S5782787A JP 55158721 A JP55158721 A JP 55158721A JP 15872180 A JP15872180 A JP 15872180A JP S5782787 A JPS5782787 A JP S5782787A
Authority
JP
Japan
Prior art keywords
bus
cpu
clock
read
signal
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
JP55158721A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6360873B2 (enrdf_load_stackoverflow
Inventor
Koji Kuroki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55158721A priority Critical patent/JPS5782787A/ja
Publication of JPS5782787A publication Critical patent/JPS5782787A/ja
Publication of JPS6360873B2 publication Critical patent/JPS6360873B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass
    • G04G99/006—Electronic time-pieces using a microcomputer, e.g. for multi-function clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
JP55158721A 1980-11-11 1980-11-11 Real time clock Granted JPS5782787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55158721A JPS5782787A (en) 1980-11-11 1980-11-11 Real time clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55158721A JPS5782787A (en) 1980-11-11 1980-11-11 Real time clock

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP1282379A Division JPH02193097A (ja) 1989-10-30 1989-10-30 リアルタイムクロック

Publications (2)

Publication Number Publication Date
JPS5782787A true JPS5782787A (en) 1982-05-24
JPS6360873B2 JPS6360873B2 (enrdf_load_stackoverflow) 1988-11-25

Family

ID=15677888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55158721A Granted JPS5782787A (en) 1980-11-11 1980-11-11 Real time clock

Country Status (1)

Country Link
JP (1) JPS5782787A (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142547A (en) * 1976-05-21 1977-11-28 Seiko Instr & Electronics Ltd Electronic digital timepiece
JPS54160281A (en) * 1978-06-07 1979-12-18 Sanyo Electric Co Ltd Load control unit
JPS5557177A (en) * 1978-10-23 1980-04-26 Seiko Instr & Electronics Ltd Digital timer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142547A (en) * 1976-05-21 1977-11-28 Seiko Instr & Electronics Ltd Electronic digital timepiece
JPS54160281A (en) * 1978-06-07 1979-12-18 Sanyo Electric Co Ltd Load control unit
JPS5557177A (en) * 1978-10-23 1980-04-26 Seiko Instr & Electronics Ltd Digital timer

Also Published As

Publication number Publication date
JPS6360873B2 (enrdf_load_stackoverflow) 1988-11-25

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