Dynamic burst control for data transfers

Details Dynamic burst control for data transfers Dynamic burst control for data transfers

G - Physics

06

F

354/233

G06F 13/28 (2006.01)

Patent

CA 1322420

64157-278 10577-130 DYNAMIC BURST CONTROL FOR DATA TRANSFERS ABSTRACT OF THE DISCLOSURE In a data processing system, a device con- troller, configured to control data transfers between a processor unit and a peripheral device on an input/out- put bus, is provided with apparatus that permits a data transfer cycle to continue until all data has been transferred, or to allow for interruption of the data transfer cycle by another device controller requesting access to the input/output via a request signal. Dur- ing a data transfer cycle the apparatus responds to detection of the request signal to interrupt the data transfer cycle after a predetermined number of data words are transferred, permitting access to the input/ output bus for other of the device controllers. In absence of the request signal, the apparatus permits the data transfer to continue until all data has been transferred between the peripheral device and the pro- cessor unit.

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