TIME-OUT COUNTER FOR MULTIPLE TRANSACTION BUS SYSTEM AND BUS BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide technology which has its wider applicability and can be applied to various types of multiple processor system having multiple bus architectures. SOLUTION: A time-out counter 302 supplies capability of a bus bridge where a 1st bus master produces a time-out interrupt 364 as long as the 1st bus master cannot perform the control of a 2nd bus within a certain period when the arbitration time is excessive about the 2nd bus. The counter 302 can perform programming up to 16 bits and allows software to select the time-out length.