›› 2015, Vol. 28 ›› Issue (3): 99-.

• 论文 • 上一篇    下一篇



  1. (海装重庆局,四川 成都 610100)
  • 出版日期:2015-03-15 发布日期:2015-03-12
  • 作者简介:刘少龙(1976—),男,工程师。研究方向:航空电子设计。E-mail:nizhenming12121@163.com

Design of a Memory Controller Based on AHB Bus

LIU Shaolong   

  1. (Navy Armament Department,Chengdu 610100,China)
  • Online:2015-03-15 Published:2015-03-12



关键词: AHB, 存储控制器, 原子操作, 低功耗


The paper presents a memory controller IP core based on high-speed bus.It takes full advantage of the protocol of AMBA 2.0 to achieve efficient access to the external RAM and ROM.With the implement of timing transition between bus-end and memory-end,the memory controller realizes the timing optimization for three special operations:instruction fetch,write access and atomic operation,improving the access efficiency for those behaviors.Additionally,this design adopts an asynchronous design method for the whole circuit,which reduces the power of controller under the idle state.This IP is described by VHDL,whose hardcore is implemented with FSM (Finite State Machine),thus forming a reusable soft core.

Key words: AHB;memory controller;atomic operation;low power


  • TN492