Patent ID: 6226702
Filing Date: 2001-05-01
Classification: G06F

Abstract:
A bus control method comprising the steps of:performing at least one of steps a) and b);a) counting numbers of bus allocation requests issued from each of a plurality of data input/output devices within a predetermined time period and producing first sequential numbers based on the counted numbers;b) measuring waiting times defined by that after said bus allocation request is issued from each of said plural data input/output devices, and until said bus allocation request is allowed and producing second sequential numbers based on the waiting times; andc) selecting one of a plurality of different bus allocation protocols:d) allocating at least one bus to one of said data input/output devices based upon said selected protocol and at least one of (1) said counted bus allocation request number and said first sequence and (2) said measured waiting time and said second sequence, while said plurality of data input/output devices are connected to said at least one bus.