JPS54127241A - Input-output control system - Google Patents
Input-output control systemInfo
- Publication number
- JPS54127241A JPS54127241A JP3517278A JP3517278A JPS54127241A JP S54127241 A JPS54127241 A JP S54127241A JP 3517278 A JP3517278 A JP 3517278A JP 3517278 A JP3517278 A JP 3517278A JP S54127241 A JPS54127241 A JP S54127241A
- Authority
- JP
- Japan
- Prior art keywords
- bus
- interface
- control part
- adaptor
- 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.)
- Granted
Links
Landscapes
- Bus Control (AREA)
Abstract
PURPOSE: To obtain an input-output control system which attains the address/length rewrite of DMA, without changing software and hardware, for an error recovery retry even if IOs are different in interface, at the time of connecting a different- interface IO device to one information system.
CONSTITUTION: An one of IO devices 13 of information processing system CPU11, adaptor unit 12 is connected to its bus 14 and a controller which controls the transfer of IO commands and interruptions from CPU11 to bus 15 and IO device 16 with an interface. Adaptor 21 is also an interface controller for the bus of one device controlled by a microcomputer and that of another one and composed of control part μCPU22 serving for the base body of the adaptor, ROM23 stored with firmware, RAM24 where commands from the CPU and an interrutpiton from an IO stand by, control part BCA25 which makes dialogue with the CPU, and bus control part BCB26 which makes bus dialogue with IOs.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53035172A JPS581455B2 (en) | 1978-03-27 | 1978-03-27 | Input/output control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53035172A JPS581455B2 (en) | 1978-03-27 | 1978-03-27 | Input/output control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54127241A true JPS54127241A (en) | 1979-10-03 |
JPS581455B2 JPS581455B2 (en) | 1983-01-11 |
Family
ID=12434430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53035172A Expired JPS581455B2 (en) | 1978-03-27 | 1978-03-27 | Input/output control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS581455B2 (en) |
-
1978
- 1978-03-27 JP JP53035172A patent/JPS581455B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS581455B2 (en) | 1983-01-11 |
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