Title:
【発明の名称】バスソシキオソナエルケイサンキシステム
Document Type and Number:
Japanese Patent JPS5833570
Kind Code:
B2
Abstract:
A Computer system which includes a central processing unit, a central memory storage unit and a plurality of peripheral devices, the central processing unit having a control unit for dividing single complete input/output instructions for the transfer of data within the system into a sequence of discrete, separately executable, time independent operation instructions under the control of a microprogram. The system further includes peripheral device control units for the control of the independent execution of the discrete divided input/output (I/O) operation instructions. A microprogram command line is connected to the control unit in the central processing unit for controlling the output of the discrete I/O operation instructions along the system bus. An interruption request unit is also included within each of the peripheral device control units for generating an interrupt in the central processing unit after the termination of an operation instruction, both to permit the updated status of instructions to be recorded and to indicate the availability of a specific I/O device for further use. After the control unit in the central processing unit divides single complete input/output instructions into a plurality of separate operation instructions for operation steps which relate to particular functional characteristics of the peripheral devices in the system, the peripheral device control units control the individual execution of each separate operation in a specific sequence but independently of each other in time within that sequence. The individual data operations are transferred over the bus of the system.
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Inventors:
ADORIANASU MARUCHINASU YOHANESU DE BEERU
HANSU KURANBINKERU
HANSU KURANBINKERU
Application Number:
JP10989275A
Publication Date:
July 20, 1983
Filing Date:
September 10, 1975
Export Citation:
Assignee:
FUIRITSUPUSU FURUUIRANPENFUABURIKEN NV
International Classes:
G06F13/362; G06F13/32; (IPC1-7): G06F3/00
Attorney, Agent or Firm:
Akihide Sugimura
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