JPS553020A - Microprogram control system - Google Patents

Microprogram control system

Info

Publication number
JPS553020A
JPS553020A JP7459078A JP7459078A JPS553020A JP S553020 A JPS553020 A JP S553020A JP 7459078 A JP7459078 A JP 7459078A JP 7459078 A JP7459078 A JP 7459078A JP S553020 A JPS553020 A JP S553020A
Authority
JP
Japan
Prior art keywords
cycle
waveform
clk
control
microinstruction
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
JP7459078A
Other languages
Japanese (ja)
Inventor
Mitsuyoshi Nagatani
Masato Maruyama
Takeshi Miyamoto
Noriaki Matsumoto
Hachiro Iida
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.)
Iwatsu Electric Co Ltd
NTT Inc
Original Assignee
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
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 Iwatsu Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Iwatsu Electric Co Ltd
Priority to JP7459078A priority Critical patent/JPS553020A/en
Publication of JPS553020A publication Critical patent/JPS553020A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the process speed of the control unit by controlling both the cycle and the waveform of the clocking pulse by the microprogram itself and then producing the CP of the cycle waveform suited to the process contents of each microinstruction.
CONSTITUTION: The address is given from program sequencer 3, and the microinstruction is read out of memory 4 in synchronization with clocking pulse CLKOUT to be set to register 5. The cycle/waveform controlling field of the CLK is provided to the instruction itself, and this part is decoded to obtain each type of control signal CONT for the control of the gate of each part. Part of the control signals are turned to control signal nC of the n-bit width. Reference oscillation output 1 is supplied to reference oscillation division control circuit/CLK production circuit 2, along with signal nC which rescribes the CLK cycle/waveform required for the instruction of under execution. In such constitution, the quick shifting is secured between the program step processes.
COPYRIGHT: (C)1980,JPO&Japio
JP7459078A 1978-06-20 1978-06-20 Microprogram control system Pending JPS553020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7459078A JPS553020A (en) 1978-06-20 1978-06-20 Microprogram control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7459078A JPS553020A (en) 1978-06-20 1978-06-20 Microprogram control system

Publications (1)

Publication Number Publication Date
JPS553020A true JPS553020A (en) 1980-01-10

Family

ID=13551520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7459078A Pending JPS553020A (en) 1978-06-20 1978-06-20 Microprogram control system

Country Status (1)

Country Link
JP (1) JPS553020A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02123449A (en) * 1988-10-14 1990-05-10 Internatl Business Mach Corp <Ibm> Computer system having clock speed interrupted and interrupt control thereof
JPH03214205A (en) * 1990-01-18 1991-09-19 Keyence Corp Sequence controller
US10220957B2 (en) 2015-02-20 2019-03-05 Airbus Operations Limited Two part cap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02123449A (en) * 1988-10-14 1990-05-10 Internatl Business Mach Corp <Ibm> Computer system having clock speed interrupted and interrupt control thereof
JPH03214205A (en) * 1990-01-18 1991-09-19 Keyence Corp Sequence controller
US10220957B2 (en) 2015-02-20 2019-03-05 Airbus Operations Limited Two part cap

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