JPS54114054A - Channel control system - Google Patents
Channel control systemInfo
- 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
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
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)
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 |
-
1978
- 1978-02-27 JP JP2083678A patent/JPS54114054A/en active Pending
Patent Citations (5)
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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