JPS5650423A - Initial value set system in information processor - Google Patents

Initial value set system in information processor

Info

Publication number
JPS5650423A
JPS5650423A JP13443580A JP13443580A JPS5650423A JP S5650423 A JPS5650423 A JP S5650423A JP 13443580 A JP13443580 A JP 13443580A JP 13443580 A JP13443580 A JP 13443580A JP S5650423 A JPS5650423 A JP S5650423A
Authority
JP
Japan
Prior art keywords
addresses
clear
prescribed
circuit
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.)
Granted
Application number
JP13443580A
Other languages
Japanese (ja)
Other versions
JPS5815806B2 (en
Inventor
Hiroyasu Nomiya
Takuo Tachiki
Takeshi Kobayashi
Shinkichi Hotta
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 JP55134435A priority Critical patent/JPS5815806B2/en
Publication of JPS5650423A publication Critical patent/JPS5650423A/en
Publication of JPS5815806B2 publication Critical patent/JPS5815806B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To simplify wirings of the circuit, by using the programmable logic array method to set the initial value concerning the initial value set system where the autoclear circuit of the memory circuit in the electronic desk calculator is the object.
CONSTITUTION: Prescribed bits of address register 2 are applied to digits F4...F128 other than lower two digits of register 2 through gate circuits OG1...OG6 by receiving the prescribed-level signal from FF circuit 1. Thus, initial values of upper six digits of register 2 are fixed. Next, one of addresses 252...255 is designated by register 2, and these addresses are designated repeatedly unitl the clear signal is released, and the program to clear prescribed memory circuits is stored in these addresses to clear contents of prescribed addresses. As a result, the signal line to supply the clear signal to respective memory circuits for the purpose of utilizing the clear operation for the system control becomes needless, so that wirings can be simplified.
COPYRIGHT: (C)1981,JPO&Japio
JP55134435A 1980-09-29 1980-09-29 Initial value setting method for information processing equipment Expired JPS5815806B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55134435A JPS5815806B2 (en) 1980-09-29 1980-09-29 Initial value setting method for information processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55134435A JPS5815806B2 (en) 1980-09-29 1980-09-29 Initial value setting method for information processing equipment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP1258175A Division JPS5444535B2 (en) 1975-01-31 1975-01-31

Publications (2)

Publication Number Publication Date
JPS5650423A true JPS5650423A (en) 1981-05-07
JPS5815806B2 JPS5815806B2 (en) 1983-03-28

Family

ID=15128298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55134435A Expired JPS5815806B2 (en) 1980-09-29 1980-09-29 Initial value setting method for information processing equipment

Country Status (1)

Country Link
JP (1) JPS5815806B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151463A (en) * 1982-12-21 1984-08-29 インタ−ナシヨナル・レクチフアイヤ−・コ−ポレ−シヨン Solid ac relay and light firing thyristor
JPS60117667A (en) * 1983-11-30 1985-06-25 Fujitsu Ltd Thyristor device
JP2008043421A (en) * 2006-08-11 2008-02-28 Koyo Sangyo Co Ltd First-aid adhesive tape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151463A (en) * 1982-12-21 1984-08-29 インタ−ナシヨナル・レクチフアイヤ−・コ−ポレ−シヨン Solid ac relay and light firing thyristor
JPS60117667A (en) * 1983-11-30 1985-06-25 Fujitsu Ltd Thyristor device
JP2008043421A (en) * 2006-08-11 2008-02-28 Koyo Sangyo Co Ltd First-aid adhesive tape

Also Published As

Publication number Publication date
JPS5815806B2 (en) 1983-03-28

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