What is sdram driver

Discussion in 'Computing and Networks' started by jvsharath, Jul 13, 2009.

  1. jvsharath

    Thread Starter New Member

    May 15, 2009
    2
    0
    Hi All,
    I am Embedded hardware designer. I hear about SDRAM driver, DDRAM driver. Can anyone explain me as what is it?

    Regards
    sharath
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
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  3. scythe

    Active Member

    Mar 23, 2009
    49
    5
    because most external memory devices do not have their own clock signals, a driver/controller is necessary to make sure that you do not violate any of the SDRAM/DDRAM timing constraints.

    Some examples of these timing constraints can be your address access time (time it takes for the memory module to obtain stable data after an address change), output hold time (time data remains valid after an address change). There are a lot of these timing constraints, so that is why a driver is necessary. To ensure proper interaction between your memory and your other device(s) in your design.

    Your driver design might be different depending on what device is using the memory module.
     
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