JPS5537651A - Microcomputer circuit - Google Patents

Microcomputer circuit

Info

Publication number
JPS5537651A
JPS5537651A JP11042578A JP11042578A JPS5537651A JP S5537651 A JPS5537651 A JP S5537651A JP 11042578 A JP11042578 A JP 11042578A JP 11042578 A JP11042578 A JP 11042578A JP S5537651 A JPS5537651 A JP S5537651A
Authority
JP
Japan
Prior art keywords
data
buses
input
alu20
latches
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
JP11042578A
Other languages
Japanese (ja)
Other versions
JPS6057605B2 (en
Inventor
Kazuaki Mayumi
Takashi Sakao
Yoshiaki Daimatsu
Toshiaki Suzuki
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 JP53110425A priority Critical patent/JPS6057605B2/en
Publication of JPS5537651A publication Critical patent/JPS5537651A/en
Publication of JPS6057605B2 publication Critical patent/JPS6057605B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To simplify double-length process and data interchange process between registers, by providing two data buses, a logical operation unit, input inhibition circuit, an two data latches, and a bus driver.
CONSTITUTION: Either internal data bus UB29 or LB30 is led to either input of logical operation unit ALU20, and the other is to the other input of ALU20. Data latch ALT25 connected to the output of ALU and data latch BLT26 sharing an input with circuit 24 are both provided and data of latches 25 and 26 are transferred to buses 29 and 30 via bus driver 27. As a result, although the logical operation bit length of ALU20 is four-bit length, data of respective registers 6, 8, 9, 13, and 14, ROM5, and RAM11 are transferred to buses to 29 and 30, further transferred to buses 29 and 30 again through latches 25 and 26, and then fetched by other resistors or RAM, so that double-length data transfer of 4-bit length can be attained in one instruction execution cycle.
COPYRIGHT: (C)1980,JPO&Japio
JP53110425A 1978-09-07 1978-09-07 microcomputer circuit Expired JPS6057605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53110425A JPS6057605B2 (en) 1978-09-07 1978-09-07 microcomputer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53110425A JPS6057605B2 (en) 1978-09-07 1978-09-07 microcomputer circuit

Publications (2)

Publication Number Publication Date
JPS5537651A true JPS5537651A (en) 1980-03-15
JPS6057605B2 JPS6057605B2 (en) 1985-12-16

Family

ID=14535422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53110425A Expired JPS6057605B2 (en) 1978-09-07 1978-09-07 microcomputer circuit

Country Status (1)

Country Link
JP (1) JPS6057605B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113144A (en) * 1980-12-30 1982-07-14 Seiko Epson Corp Stored program computer
JPS58167939U (en) * 1982-04-30 1983-11-09 横河電機株式会社 arithmetic device
JPS63193237A (en) * 1987-02-06 1988-08-10 Toshiba Corp Semiconductor integrated circuit device
JPS63303452A (en) * 1987-03-13 1988-12-12 テキサス　インスツルメンツ　インコーポレイテッド Data processor with multiple onchip memory bus
JPS6453232A (en) * 1984-10-01 1989-03-01 Unisys Corp Processing system
JPH01116730A (en) * 1987-10-30 1989-05-09 Mitsubishi Electric Corp Digital signal processor
JPH01228019A (en) * 1988-03-08 1989-09-12 Fujitsu Ltd Data processor
JPH03201126A (en) * 1989-12-28 1991-09-03 Sharp Corp Data processor
JPH04260957A (en) * 1990-09-03 1992-09-16 Internatl Business Mach Corp <Ibm> Computer system
JPH07168713A (en) * 1994-10-24 1995-07-04 Mitsubishi Electric Corp Digital signal processor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113144A (en) * 1980-12-30 1982-07-14 Seiko Epson Corp Stored program computer
JPS58167939U (en) * 1982-04-30 1983-11-09 横河電機株式会社 arithmetic device
JPS6453232A (en) * 1984-10-01 1989-03-01 Unisys Corp Processing system
JPS63193237A (en) * 1987-02-06 1988-08-10 Toshiba Corp Semiconductor integrated circuit device
JPS63303452A (en) * 1987-03-13 1988-12-12 テキサス　インスツルメンツ　インコーポレイテッド Data processor with multiple onchip memory bus
JPH01116730A (en) * 1987-10-30 1989-05-09 Mitsubishi Electric Corp Digital signal processor
JPH01228019A (en) * 1988-03-08 1989-09-12 Fujitsu Ltd Data processor
JPH03201126A (en) * 1989-12-28 1991-09-03 Sharp Corp Data processor
JPH04260957A (en) * 1990-09-03 1992-09-16 Internatl Business Mach Corp <Ibm> Computer system
JPH07168713A (en) * 1994-10-24 1995-07-04 Mitsubishi Electric Corp Digital signal processor

Also Published As

Publication number Publication date
JPS6057605B2 (en) 1985-12-16

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