JPS54114054A - Channel control system - Google Patents

Channel control system

Info

Publication number
JPS54114054A
JPS54114054A JP2083678A JP2083678A JPS54114054A JP S54114054 A JPS54114054 A JP S54114054A JP 2083678 A JP2083678 A JP 2083678A JP 2083678 A JP2083678 A JP 2083678A JP S54114054 A JPS54114054 A JP S54114054A
Authority
JP
Japan
Prior art keywords
bus
channel
control
channel control
input
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
JP2083678A
Other languages
Japanese (ja)
Inventor
Yutaka Nakajima
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 JP2083678A priority Critical patent/JPS54114054A/en
Publication of JPS54114054A publication Critical patent/JPS54114054A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the hardware quantity at the channel part and to ensure a flexible channel control by controlling the input/output bus and the memory bus via the microcomputer and then decoding the channel control words.
CONSTITUTION: CPU1 uses high-speed H bus 2 and low-speed L bus 3 to ensure a highly effective input/output, and also contains main memory 4, bus control circuit 5 and arithmetic processor 6. Control part 6 gives the arithmetic control to the channel, and the firmware is stored in ROM to control part 6. Input/output bus 45 and memory bus 44 are controlled by microcomputer 51 to decode the channel control words. As a result, the hardware quantity can be reduced at the channel part, and at the same time a flexible channel control becomes possible.
COPYRIGHT: (C)1979,JPO&Japio
JP2083678A 1978-02-27 1978-02-27 Channel control system Pending JPS54114054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2083678A JPS54114054A (en) 1978-02-27 1978-02-27 Channel control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2083678A JPS54114054A (en) 1978-02-27 1978-02-27 Channel control system

Publications (1)

Publication Number Publication Date
JPS54114054A true JPS54114054A (en) 1979-09-05

Family

ID=12038141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2083678A Pending JPS54114054A (en) 1978-02-27 1978-02-27 Channel control system

Country Status (1)

Country Link
JP (1) JPS54114054A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258433A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Subchannel control system
JPS5320837A (en) * 1976-08-11 1978-02-25 Epson Corp Integrated circuit having timer and computation performance
JPS5320838A (en) * 1976-08-11 1978-02-25 Epson Corp Integrated circuit having timer and computation performance
JPS5475954A (en) * 1977-11-30 1979-06-18 Hitachi Ltd Data channel unit
JPS5498140A (en) * 1978-01-20 1979-08-02 Hitachi Ltd Channel control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258433A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Subchannel control system
JPS5320837A (en) * 1976-08-11 1978-02-25 Epson Corp Integrated circuit having timer and computation performance
JPS5320838A (en) * 1976-08-11 1978-02-25 Epson Corp Integrated circuit having timer and computation performance
JPS5475954A (en) * 1977-11-30 1979-06-18 Hitachi Ltd Data channel unit
JPS5498140A (en) * 1978-01-20 1979-08-02 Hitachi Ltd Channel control system

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