METHOD AND SYSTEM FOR SYNCHRONIZING ADDRESS AND CONTROL SIGNALS IN THREADED MEMORY MODULES

摘要

A memory system includes a memory module which further includes a set of memory devices. The set of memory devices includes a first subset of memory devices and a second subset of memory devices. An address bus is disposed on the memory module, wherein the address bus includes a first segment coupled to the first subset and a second segment coupled to the second subset. An address signal traverses the set of memory devices in sequence. The memory system also includes a memory controller which is coupled to the memory module. The memory controller includes a first circuit to output a first control signal that controls the first subset, such that the first control signal and the address signal arrive at a memory device in the first subset at substantially the same time. The memory controller additionally includes a second circuit to output a second control signal that controls the second subset, such that the second control signal and the address signal arrive at a memory device in the second subset at substantially the same time.