
2. System Configurations

2.1 Uniprocessor Systems
In a typical uniprocessor system, the System interface of the R10000 processor connects in a point-to-point fashion with an external agent. Such a system is shown in Figure 2-1. The external agent is typically an ASIC that provides a gateway to the memory and I/O subsystems; in fact, this ASIC may incorporate the memory controller itself.
If hardware I/O coherency is desired, the external agent may use the multiprocessor primitives provided by the processor to maintain cache coherency for interventions and invalidations. External duplicate tags can be used by the external agent to filter external coherency requests.

Figure 2-1 Uniprocessor System Organization

Copyright 1995, MIPS Technologies, Inc. -- 29 JAN 96



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