METHODS AND SYSTEMS FOR MAPPING A PERIPHERAL FUNCTION ONTO A LEGACY MEMORY INTERFACE

摘要

A memory system includes a CPU that communicates commands and addresses to a main-memory module. The module includes a buffer circuit that relays commands and data between the CPU and the main memory. The memory module additionally includes an embedded processor that shares access to main memory in support of peripheral functionality, such as graphics processing, for improved overall system performance. The buffer circuit facilitates the communication of instructions and data between CPU and the peripheral processor in a manner that minimizes or eliminates the need to modify CPU, and consequently reduces practical barriers to the adoption of main-memory modules with integrated processing power.

主权项

1. A dual-inline memory module (DIMM) comprising:
a module interface configured to receive module data into the DIMM using parallel data channels; a non-volatile flash memory bank; and one or more integrated circuits configured to receive the module data using the parallel data channels and to enable the module data to be written to a dynamic random access memory (DRAM) bank, read from the DRAM bank, and written to the non-volatile flash memory bank, wherein the one or more integrated circuits are configured to translate between a first addressing scheme employed by the DRAM bank and a second addressing scheme employed by the non-volatile flash memory bank.