Designing SOCs with Configured Cores

6.5. Diamond-Core Local-Memory Interfaces

Each Diamond processor core has a number of local-memory interfaces that provide fast access to instructions and data. There are three types of local-memory interfaces including the cache interfaces, local RAM interfaces, and the XLMI port. All three local-memory interface types are read/write interfaces. (Note: The Diamond 232L core has no local-memory interfaces or XLMI port. However, it does have four instruction-cache and four data-cache interfaces needed to support 4-way instruction- and data-cache memories.)

Diamond processor cores, like all pipelined RISC processors, perform speculative read operations on the local-memory buses. Data obtained from these read operations may or may not be used, depending ...