Data processing system and method with central processing unit-determined peripheral device service

摘要: Data processing apparatus is described comprising a processor and at least one peripheral device. The arranged to service the device either in an interrupt mode which serviced response signals generated by or timed periodically polled if required. has dynamic switching arrangement for from depending upon conditions dynamically determined within apparatus, of said being that rate generates exceeds predefined programmable threshold frequency. polling less than Thus, between driven used order make more efficient use shared system resources servicing devices only times high demand.