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GPMC throughput on 8148

kashetty
Prodigy 160 points
Other Parts Discussed in Thread: TMS320DM8148

Hi there,

            In our Design we are using 8148. To communicate between FPGA and 8148 we are planning to use GPMC.

  1. According to data sheet of TMS320DM8148 GPMC maximum clock is 100 MHz at OPP100. Can you please tell me the maximum frequency of the GPMC at OPP166. 
  2. Can you tell me what is the maximum throughput we can achieve using GPMC with fast transferring devices like FPGA (i.e., not NAND or NOR devices).

Thanks in Advance

  • 0
    TI__Guru**** 170625 points

    Hello,

    kashetty said:
    According to data sheet of TMS320DM8148 GPMC maximum clock is 100 MHz at OPP100. Can you please tell me the maximum frequency of the GPMC at OPP166.

    110MHz, GPMC is connected to L3S/L4S.

    kashetty said:
    Can you tell me what is the maximum throughput we can achieve using GPMC with fast transferring devices like FPGA (i.e., not NAND or NOR devices).

    See if the below pointers will be in help:

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/196291.aspx

    http://e2e.ti.com/support/dsp/omap_applications_processors/f/447/t/65473.aspx

    http://e2e.ti.com/support/dsp/omap_applications_processors/f/447/t/143795.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/131886.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/p/384452/1359761.aspx#1359761

    http://processors.wiki.ti.com/index.php/Common_Issue_Resulting_in_Slow_External_Memory_Performance

    BR
    Pavel