A processing module with multilevel cache architecture, including: a processor; a level-one (L1) cache, coupled to the processor, for caching data for the processor, wherein the L1 cache has at least one L1 cacheable range; a level-two (L2) cache, coupled to the L1 cache, for caching data for the processor, wherein the L2 cache has at least one L2 cacheable range, and the L1 cacheable range and the L2 cacheable range are mutually exclusive; and a memory interface, coupled to the L1 cache and the L2 cache, for transferring data between the L1 cache and a memory and for transferring data between the L2 cache and the memory.