MIPS R4000 Microprocessor User's Manual 247
Cache Organization, Operation, and Coherency
Figure 11-2 Cache Support in the R4000PC, R4000SC, and R4000MC
R4000PC
I-cache
Cache Controller
D-cache
Primary
Caches
Main Memory
R4000SC/MC
I-cache
Cache Controller
D-cache
Primary
Caches
Main Memory
Secondary Cache
I-cache primary instruction cache
D-cache primary data cache
Primary Cache Only
Primary and Secondary Cache
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