JPS5765923A - Code converting device - Google Patents

Code converting device

Info

Publication number
JPS5765923A
JPS5765923A JP14350180A JP14350180A JPS5765923A JP S5765923 A JPS5765923 A JP S5765923A JP 14350180 A JP14350180 A JP 14350180A JP 14350180 A JP14350180 A JP 14350180A JP S5765923 A JPS5765923 A JP S5765923A
Authority
JP
Japan
Prior art keywords
output
digital
input terminals
conversion
register
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
JP14350180A
Other languages
Japanese (ja)
Inventor
Toshiki Mori
Atsushi Shibata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14350180A priority Critical patent/JPS5765923A/en
Publication of JPS5765923A publication Critical patent/JPS5765923A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/02—Reversible analogue/digital converters

Abstract

PURPOSE:To facilitate making a device, which has A/D and D/A conversion functions, into an integrated circuit, by releasing the output of a register and using digital output and input terminals for A/D conversion as digital input terminals and taking output of a local decoder from an analogue output terminal when the device is used for D/A conversion. CONSTITUTION:In cast that a local decoder 3 of an A/D converter is used as a D/A converter, digital output and input terminals 11 for A/D conversion are operated as digital input terminals, and the output of the local decoder 3 is taken out from an analogue output terminal 10. In this case, when a digital signal is applied from digital output and input terminals 11, a switching signal is applied from an A/D and D/A switching signal input terminal 12 to release the output of a register 4 for the purpose of preventing mixture with the output signal of the register 4. Thus, the device having A/D and D/A conversion function is made into an integrated circuit easily without increasing considerably the number of circuits and pins.
JP14350180A 1980-10-13 1980-10-13 Code converting device Pending JPS5765923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14350180A JPS5765923A (en) 1980-10-13 1980-10-13 Code converting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14350180A JPS5765923A (en) 1980-10-13 1980-10-13 Code converting device

Publications (1)

Publication Number Publication Date
JPS5765923A true JPS5765923A (en) 1982-04-21

Family

ID=15340184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14350180A Pending JPS5765923A (en) 1980-10-13 1980-10-13 Code converting device

Country Status (1)

Country Link
JP (1) JPS5765923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182220A (en) * 1984-02-29 1985-09-17 Fujitsu Ltd Analog-digital converter
JPH01130625A (en) * 1987-10-30 1989-05-23 Internatl Business Mach Corp <Ibm> Converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182220A (en) * 1984-02-29 1985-09-17 Fujitsu Ltd Analog-digital converter
JPH01130625A (en) * 1987-10-30 1989-05-23 Internatl Business Mach Corp <Ibm> Converter

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