1. A processor-memory unit comprising: a processing module including at least one processor or at least one logic application-specific circuit (ASIC), the processing module being included in a system-in-package (SiP) or system-in-module (SiM) device; a memory module including at least a first memory bank, and being included in the same system-in-package (SiP) or system-in-module (SiM) device as the processing module; and a programmable system module coupled to the processing module and the memory module, the programmable system module being programmable to provide signal or protocol compatibility between the processing module and the memory module, wherein the processing module and the memory module utilize different data exchange protocols.