SELF TERMINATED DYNAMIC RANDOM ACCESS MEMORY

• Main Author: XU CHAO
• Format: Patent
• Language: English
• Published: 20.06.2013
• Subjects: CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A method for operating a memory system and a memory buffer device. The method includes receiving an external clock signal from a clock device of a CPU of a host computer to a buffer device, and receiving an ODT signal from the CPU to a command port of the buffer device. Buffer device provides the self-termination information internally to the common data bus by automatically detecting the read or write command on the common command bus and adjust the termination resistor array in a pre-determined value and timing fashion so that information can be read from or write to a data line of only one of the plurality of DIMM devices coupled together through a common data bus interface. All DIMM devices other than the DIMM device being read can be maintained in a termination state to prevent any signal from traversing to the common the common data bus interface.