Asynchronous data transfers among a plurality of computer device

Details Asynchronous data transfers among a plurality of computer device Asynchronous data transfers among a plurality of computer device

1993-10-28

1996-12-17

Harvey, Jack B.

395286, C06F 1300

Patent

active

055862721

ABSTRACT:
A method and apparatus for transferring data among a plurality of sending and receiving nodes is disclosed. All nodes use the same control lines in the same manner. In a first phase all nodes assert a first control line and transfer data to the data bus concurrent with the assertion of a second control line. After each of the nodes has released the first control line, a second phase occurs with all nodes reading the data. The data transfer is complete when a preconditioned second control line is released by all of the nodes. A third phase resets the control lines to enable the next data transfer cycle to begin. Nodes may take a variable time for each phase of a data transfer and the transfer rate is automatically adjusted to the slowest node.

REFERENCES:
patent: 5301282 (1994-05-01), Amini et al.
patent: 5524215 (1996-06-01), Gay

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