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DDR3 ECC

pascal alvin
Prodigy 120 points

Hello,

On my design, I use the TMS320C6671ACYPA with 4 DDR3 (128M * 16bits) and I do not use ECC function.

How should I polarize the signals DDRCB [7:0] and the signals DDRDQS8P/N?.

Thanks

Best Regards

Pascal

  • 0
    TI__Mastermind 46460 points

    Pascal,

    The unused DDRCB[7:0] pins can be left unconnected when ECC is not needed.  This is stated in section "7.8.4 Unused DDR3 Pin Requirement" of the Hardware Design Guide for KeyStone I Devices Application Report (SPRABI2B).  The DDR3 Design Requirements for KeyStone Devices Application Report (SPRABI1A) also has implementation examples.

    Tom