Shared command address (C/A) bus for multiple memory channels

• Main Authors: Bharathan Jayapratap, Hossain MD Altaf, Aboulenein Nagi
• Format: Patent
• Language: English
• Published: 10.04.2018
• 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; INFORMATION STORAGE; PHYSICS; STATIC STORES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A shared command/address (C/A) bus for memory devices in a multi-channel configuration can enable reducing the number of pins and signal lines in a memory subsystem. In one embodiment, a memory controller includes hardware logic to generate commands to access a plurality of memory devices via a plurality of channels and input/output (I/O) circuitry to transmit command/address (C/A) information for the commands to the plurality of memory devices over a single C/A bus for the plurality of channels. In one embodiment, double-speed strobe signal lines can also enable reducing the number of pins and signal lines in a memory subsystem.