MULTIPLE INTERNAL BUS RESERVATION SNOOPING IMPLEMENTATION
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Jul-23
A cost-effective reservation snoop mechanism for a bus interface unit with multiple bidirectional buses and the capability of handling reservation des- tinations on all buses. A reservation can only be set from one of the buses but the reserved memory location can be on any bus. Further, the reserved location can be 'touched' by a write access originat- ing on any bus. Thus the mechanism must support all source/destination combinations for the intruding write cycles. Writes by the bus master that originally set the reservation are to be ignored.