JPS55103616A - Bus dialogue system - Google Patents
Bus dialogue systemInfo
- Publication number
- JPS55103616A JPS55103616A JP1032279A JP1032279A JPS55103616A JP S55103616 A JPS55103616 A JP S55103616A JP 1032279 A JP1032279 A JP 1032279A JP 1032279 A JP1032279 A JP 1032279A JP S55103616 A JPS55103616 A JP S55103616A
- Authority
- JP
- Japan
- Prior art keywords
- interruption
- cpu
- bus line
- data
- disc unit
- 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
Landscapes
- Bus Control (AREA)
Abstract
PURPOSE: To improve a processing speed by providing a special bus line besides a normal bus line, by which a CPU is connected to I/O devices, and by causing a specific I/O device to use this bus line preferentially.
CONSTITUTION: When a read instruction is issued from a PCU to a disc unit, the disc unit turns on the read gate for the device. The device transfers data from the tuning-on time. When data is transferred, the disc unit controls a special bus line, which has a priority higher than bus lines in other I/O devices, to execute data interruption for the CPU. The CPU receives data by this interruption; and when the CPU completes receiving up to designation, the disc unit releases data interruption. Next, end interruption is executed for the purpose of reporting the end of operations for the read instruction to the CPU, and a normal bus line similar to bus lines in other I/O devices is used for this interruption, thus completing dialogue.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1032279A JPS55103616A (en) | 1979-02-02 | 1979-02-02 | Bus dialogue system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1032279A JPS55103616A (en) | 1979-02-02 | 1979-02-02 | Bus dialogue system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55103616A true JPS55103616A (en) | 1980-08-08 |
Family
ID=11746984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1032279A Pending JPS55103616A (en) | 1979-02-02 | 1979-02-02 | Bus dialogue system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103616A (en) |
-
1979
- 1979-02-02 JP JP1032279A patent/JPS55103616A/en active Pending
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