"ARM9 embedded system design through-train" - Chapter VII Pan read memory controller Study Notes

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7.1 Overview

The memory controller is responsible for access to external memory , providing the correct control signal for the memory. The following is 1GB memory partition access FIG :
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7.2 Functional Description

The memory controller functionality comprisingThree important mode of operation

  • bank0Bus width is provided
  • nWAITPin operation
  • nXBREQ/nXBACKPin operation

7.4 Memory Control register

Memory control register comprises:

  1. And wait control register bus width ( BWSOCN,32位)
  2. Control register bank
  3. Refresh control register
  4. banksize register
  5. Register Mode Register Set

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