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US 4,062,059 AGranted
Information processing system
AssigneeTokyo Shibaura Electric Co., Ltd.
InventorsSeigo Suzuki, Yoshiaki Moriya
Life of this patent
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AssigneeTokyo Shibaura Electric Co., Ltd.
InventorsSeigo Suzuki, Yoshiaki Moriya
Estimating the term…
In an information processing system comprising a central processing unit, an input/output unit and a first-in first-out stack connected between these units there are provided a buffer control circuit for detecting the full and empty states of the first-in first-out stack, an input/output control circuit connected between the first-in first-out stack and the input/output unit for detecting a predetermined state of the input/output unit, a status register for storing specific states of the first-in first-out stack and the input/output unit, a command register controlled by programmed information from the central processing unit for establishing a specific interruption condition corresponding to the specific states of the first-in first-out stack and the input/output unit, and an interruption control circuit coupled to the status register and the command register for applying an interruption signal to the central processing unit when the state signal from the status register and the interruption condition signal from the command register coincide with each other.
An information processing system comprising first and second information processing units, a first-in first-out stack acting as a buffer and connected between said first and second information processing units, a first register connected to be set to a predetermined bit position in accordance with a programmed information from said first information processing unit for producing an interruption condition signal corresponding to said bit position, a first control circuit connected to detect the state of said first-in first-out stack for producing a state signal corresponding to the state of first-in first-out stack, a second register connected to be set to a predetermined bit position corresponding to said state signal from said first control circuit for generating a state indicating signal, and an interruption control circuit coupled to said first and second registers and to said first information processing unit for generating an interruption control signal when said state indicating signal from said second register satisfies an interruption condition established by the bit position of said first register.
Dependencies are inferred from the claim text.