JPS5447079A - Digital control means - Google Patents

Digital control means

Info

Publication number
JPS5447079A
JPS5447079A JP11263877A JP11263877A JPS5447079A JP S5447079 A JPS5447079 A JP S5447079A JP 11263877 A JP11263877 A JP 11263877A JP 11263877 A JP11263877 A JP 11263877A JP S5447079 A JPS5447079 A JP S5447079A
Authority
JP
Japan
Prior art keywords
signal
register
multiplexor
converter
contents
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
JP11263877A
Other languages
Japanese (ja)
Inventor
Junichi Oizumi
Takeshi Hirayama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11263877A priority Critical patent/JPS5447079A/en
Publication of JPS5447079A publication Critical patent/JPS5447079A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lower the price of digital control means, by obtaining digital value carrying out comparative A-D converting in sequence, using twice DA converter having number of bits lell than required bits.
CONSTITUTION: Central processoes CPU gives prescribed operation to the signal converted into digital value from the signal of multiplexorl, being used to output the output signal V at the operating end through D/A converter D A multiplexor 2. Signal selectted with multiplexor lis compared with signal which contents of register in the I/O port is converted, contents of register is changed by proper method until it meets. In the xase of not meeting, its difference is held to condenser CE, furthermore similar operation is carried out with amplifier OP and other register, operation will be started taking data combined with both registers for input signal
COPYRIGHT: (C)1979,JPO&Japio
JP11263877A 1977-09-21 1977-09-21 Digital control means Pending JPS5447079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11263877A JPS5447079A (en) 1977-09-21 1977-09-21 Digital control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11263877A JPS5447079A (en) 1977-09-21 1977-09-21 Digital control means

Publications (1)

Publication Number Publication Date
JPS5447079A true JPS5447079A (en) 1979-04-13

Family

ID=14591728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11263877A Pending JPS5447079A (en) 1977-09-21 1977-09-21 Digital control means

Country Status (1)

Country Link
JP (1) JPS5447079A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111901A (en) * 1980-02-08 1981-09-04 Hitachi Ltd Signal processing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111901A (en) * 1980-02-08 1981-09-04 Hitachi Ltd Signal processing circuit

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