RM7000A

PMC-Sierra's RM7000A is a highly integrated symmetric superscalar microprocessor capable of issuing two instructions each processor cycle. It has two high-performance 64-bit integer units as well as a high-throughput, fully pipelined 64-bit floating point unit.

The RM7000A integrates 16 KB 4-way set associative instruction and data caches along with an integrated 256 KB 4-way set associative secondary. The primary data and secondary caches are write-back and non-blocking. An optional external tertiary cache provides high-performance capability even in applications with very large data sets.

The memory management unit contains a 64/48-entry fully associative TLB and a 64-bit system interface supporting multiple outstanding reads with out-of-order return and hardware prioritized and vectored interrupts.

The RM7000A ideally suits high-end embedded control applications such as internetworking, high-performance image manipulation, high-speed printing, and 3-D visualization. The RM7000A is also applicable to the low end workstation market where its balanced integer and floating-point performance and direct support for a large tertiary cache (up to 8 MB) provide outstanding price/ performance.