JPS5680922A - Timing pulse generator - Google Patents

Timing pulse generator

Info

Publication number
JPS5680922A
JPS5680922A JP15768579A JP15768579A JPS5680922A JP S5680922 A JPS5680922 A JP S5680922A JP 15768579 A JP15768579 A JP 15768579A JP 15768579 A JP15768579 A JP 15768579A JP S5680922 A JPS5680922 A JP S5680922A
Authority
JP
Japan
Prior art keywords
counter
signal
word
contents
rom9
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
JP15768579A
Other languages
Japanese (ja)
Other versions
JPH0120807B2 (en
Inventor
Hachiro Yamada
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
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15768579A priority Critical patent/JPS5680922A/en
Publication of JPS5680922A publication Critical patent/JPS5680922A/en
Publication of JPH0120807B2 publication Critical patent/JPH0120807B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses

Abstract

PURPOSE:To save the capacity of ROM greatly by dividing ROM into two parts and by storing one part with the states of plural timing pulse signals while storing the other with continuation periods of respective states correspondingly. CONSTITUTION:As start signal 4 drops in level, the contents of counter 5 are set to zero and at the same time, the contents of the number-''0'' word in ROM9 are set in counter 2. As clock signal 1 is inputted next, the contents of the number-''0'' word in ROM11 are set in output register 13 and counter 2 counts up by one. When signal 1 is supplied continuously and the contents of counter 2 reach a set value, counter 2 generates carry signal 3. Because of the generation of signal 3, counter 5 counts up by one at the fall of current signal 1. This is equivalent to a change in adderss of ROM9 from the number-''0'' word to the number-''1'' word. As a result, the contents of the number-''1'' word in ROM9 are set in counter 2, and those of the number-''1'' word in ROM11 in register 13 at the rise of signal 1 after the generation of signal 3.
JP15768579A 1979-12-05 1979-12-05 Timing pulse generator Granted JPS5680922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15768579A JPS5680922A (en) 1979-12-05 1979-12-05 Timing pulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15768579A JPS5680922A (en) 1979-12-05 1979-12-05 Timing pulse generator

Publications (2)

Publication Number Publication Date
JPS5680922A true JPS5680922A (en) 1981-07-02
JPH0120807B2 JPH0120807B2 (en) 1989-04-18

Family

ID=15655141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15768579A Granted JPS5680922A (en) 1979-12-05 1979-12-05 Timing pulse generator

Country Status (1)

Country Link
JP (1) JPS5680922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074818A (en) * 1983-09-30 1985-04-27 Yokogawa Hokushin Electric Corp Pulse counter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149933A (en) * 1976-06-09 1977-12-13 Hitachi Ltd Pulse generator using memory unit
JPS53145458A (en) * 1977-05-24 1978-12-18 Nippon Telegr & Teleph Corp <Ntt> Digital signal generator circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149933A (en) * 1976-06-09 1977-12-13 Hitachi Ltd Pulse generator using memory unit
JPS53145458A (en) * 1977-05-24 1978-12-18 Nippon Telegr & Teleph Corp <Ntt> Digital signal generator circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074818A (en) * 1983-09-30 1985-04-27 Yokogawa Hokushin Electric Corp Pulse counter

Also Published As

Publication number Publication date
JPH0120807B2 (en) 1989-04-18

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