JPS6478289A - Parameter setting circuit - Google Patents

Parameter setting circuit

Info

Publication number
JPS6478289A
JPS6478289A JP62234818A JP23481887A JPS6478289A JP S6478289 A JPS6478289 A JP S6478289A JP 62234818 A JP62234818 A JP 62234818A JP 23481887 A JP23481887 A JP 23481887A JP S6478289 A JPS6478289 A JP S6478289A
Authority
JP
Japan
Prior art keywords
circuit
mpu
external terminal
mode
high application
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
JP62234818A
Other languages
Japanese (ja)
Inventor
Satoru Tsunekawa
Kiyoshige Kinugawa
Hiroyuki Mano
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 JP62234818A priority Critical patent/JPS6478289A/en
Publication of JPS6478289A publication Critical patent/JPS6478289A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to omit an MPU and to reduce the cost of a system by storing parameter set values having high application frequency in a set value selection circuit and selecting a suitable combination based upon a signal inputted from an external terminal. CONSTITUTION: Parameter set values having high application frequency are stored in the set value selection circuit 5. In a general example, a pin setting mode is selected by a mode selector 1, so that the external terminal is turned to a mode terminal for the circuit 5 by a pin function selecting circuit 2 and a multiplexer 7 transmits an output value from the circuit 5 to an internal circuit. Since only parameters are selected by the external terminal in the state, the addition of a new MPU is unnecessary. Consequently many parameters can be set up in a device separated from the MPU without increasing cost.
JP62234818A 1987-09-21 1987-09-21 Parameter setting circuit Pending JPS6478289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62234818A JPS6478289A (en) 1987-09-21 1987-09-21 Parameter setting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62234818A JPS6478289A (en) 1987-09-21 1987-09-21 Parameter setting circuit

Publications (1)

Publication Number Publication Date
JPS6478289A true JPS6478289A (en) 1989-03-23

Family

ID=16976866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62234818A Pending JPS6478289A (en) 1987-09-21 1987-09-21 Parameter setting circuit

Country Status (1)

Country Link
JP (1) JPS6478289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008107036A (en) * 2006-10-26 2008-05-08 Max Co Ltd Blower and air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008107036A (en) * 2006-10-26 2008-05-08 Max Co Ltd Blower and air conditioner

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