AN3100配置外部DDR SDRAM的SPEAr3xx多端口存储器控制器（MPMC）

AN3100配置外部DDR SDRAM的SPEAr3xx多端口存储器控制器（MPMC）

AN3100
Application note
Configuring the SPEAr3xx multi-port memory controller (MPMC) for
external DDR SDRAM

Introduction
The SPEAr3xx embedded MPU family features a multi-port memory controller for interfacing
with external DDR or DDR2 memory devices.
This application note describes how to configure the MPMC to use different types of DDR
and DDR2 memories and tune the parameters in accordance with JEDEC requirements and
the flexibility available in the application.




March 2012 Doc ID 16606 Rev 2