Apparatus and method for controlling transfer of data between an

Details Apparatus and method for controlling transfer of data between an Apparatus and method for controlling transfer of data between an

1998-04-03

2000-10-31

Maung, Zarni

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data transfer regulating

709230, 709232, 710 1, G06F 1516

Patent

active

061416916

ABSTRACT:
An interface enables asynchronous data processing elements to be interconnected using an interconnection protocol that controls the flow of data between the processing elements. The flow control allows the processing elements to be data independent, i.e., the processing elements need not be designed for a fixed sample rate or resolution, sample format, or other data dependent factors. When used with digital motion video data, the processing elements may process motion video data at various temporal and spatial resolutions and color formats and precisions. Flow of data between processing elements may be controlled by handshake signals indicating whether the data output by the sender is valid and whether the receiver can receive data. The sender transmits data and asserts a valid signal along with the data in response to a request signal from the receiver. The request signal may be asserted by the receiver and responded to asynchronously by the sender with the transmission of the data by the sender. As a result, the sender and receiver are decoupled, thus enabling high speed data transmission and time division multiplexing of data across the interconnect. The sender also may transfer command data. A valid command signal is to indicate the present of command data.

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