JPS54104259A - Analog input system - Google Patents

Analog input system

Info

Publication number
JPS54104259A
JPS54104259A JP1058478A JP1058478A JPS54104259A JP S54104259 A JPS54104259 A JP S54104259A JP 1058478 A JP1058478 A JP 1058478A JP 1058478 A JP1058478 A JP 1058478A JP S54104259 A JPS54104259 A JP S54104259A
Authority
JP
Japan
Prior art keywords
data
deviation
input
control part
held
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
JP1058478A
Other languages
Japanese (ja)
Inventor
Kuniyoshi Konishi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1058478A priority Critical patent/JPS54104259A/en
Publication of JPS54104259A publication Critical patent/JPS54104259A/en
Pending legal-status Critical Current

Links

Landscapes

  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To make it possible to collect data with high efficient by inputting data making use of an interruption over a look at the deviation of the input data.
CONSTITUTION: Multiplexer 300 is controlled by control part 304 to scan on input points for a constant time, and analog data selected are held by sample holding circuit 301. The held analog values are A/D-converted by A/D converter 302 and results are written into random access memory RAM 303 and also sent to computer CPU. At every time of scanning, control part 304 compares present data at the input point with the last data to obtain the deviation and when the deviation reaches a certain value, the present data are set to RAM 303 and an interruption to the CPU is caused, thereby transmitting the address of the input point.
COPYRIGHT: (C)1979,JPO&Japio
JP1058478A 1978-02-03 1978-02-03 Analog input system Pending JPS54104259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1058478A JPS54104259A (en) 1978-02-03 1978-02-03 Analog input system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1058478A JPS54104259A (en) 1978-02-03 1978-02-03 Analog input system

Publications (1)

Publication Number Publication Date
JPS54104259A true JPS54104259A (en) 1979-08-16

Family

ID=11754286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1058478A Pending JPS54104259A (en) 1978-02-03 1978-02-03 Analog input system

Country Status (1)

Country Link
JP (1) JPS54104259A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945538A (en) * 1982-09-07 1984-03-14 Seiko Epson Corp Input circuit system of microcomputer
JPS622312A (en) * 1985-06-28 1987-01-08 Fujitsu Ltd X-y coordinate input device
JPH0287221A (en) * 1988-09-22 1990-03-28 Nec Ic Microcomput Syst Ltd Microcomputer
JPH0290234A (en) * 1988-09-27 1990-03-29 Nec Corp Interruption control circuit for microcomputer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945538A (en) * 1982-09-07 1984-03-14 Seiko Epson Corp Input circuit system of microcomputer
JPS622312A (en) * 1985-06-28 1987-01-08 Fujitsu Ltd X-y coordinate input device
JPH0287221A (en) * 1988-09-22 1990-03-28 Nec Ic Microcomput Syst Ltd Microcomputer
JPH0290234A (en) * 1988-09-27 1990-03-29 Nec Corp Interruption control circuit for microcomputer

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