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This document provides general hardware and layout considerations and guidelines for hardware engineers implementing a DDR4 memory subsystem. The rules and recommendations in this document serve as an initial baseline for board designers to begin their specific implementations, such as fly-by memory topology. NOTE.
Because numerous memory topologies and interface frequencies are possible on the DDR interface, Freescale highly recommends that the board designer verify, through simulation, all aspects (signal integrity, electrical timings, and so on) before PCB fabrication.
DDR4 SDRAM is a high-speed dynamic random-access memory internally configured as an 8-bank DRAM for the x16 configuration and as a 16-bank DRAM for the x4 and x8 configurations. The device uses an 8n-prefetch architecture to achieve high-speed oper-ation.
DDR4 design checklist No. Task Completed Simulation 1 Ensure that optimal termination values, signal topology, and trace lengths are determined through simulation for each signal group in the memory implementation.
This document provides general hardware and layout considerations and guidelines for hardware engineers implementing a DDR3 memory subsystem. The rules and recommendations in this document serve as an initial baseline for board designers to begin their specific implementations, such as fly-by memory topology. CAUTION.
The AM62x processors support two different types of DDR memories: DDR4 and LPDDR4. This allows customer board designs to be implemented with the memory type that best meets their target market at the lowest possible DDR SDRAM cost. This document is divided into three sections. The first section contains material
Advanced Basics. DRAM Evolution: Interface Path. Future Interface Trends & Research Areas. Performance Modeling: . Architectures, Systems, Embedded. Break at 10 a.m. — Stop us or starve. Basics. first off -- what is DRAM? an . array of storage elements .
