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Composite video out in OMAP4460

ankush agrawal
Prodigy 210 points
Other Parts Discussed in Thread: 4460

Hello,

I want to use the OMAP4460 in my new design. i was seeking the difference between OMAP4430 and OMAP4460 from SWPU278 revision august 2012. over there it is written composite video out (Analog) is no longer supported. while the datasheets on TI website says composite video out is supported. please confirm for the same.

except this i found some difference of camera, power supply, memory. is there any more difference between OMAP4430 and OMAP4460. can you please elabroate on memory difference?

regards,

Ankush agrawal

  • 0
    TI__Intellectual 1300 points

    Composite Video out is supported for 4460, Gingerbread and below. It is not supported for Ice Cream Sandwich for any processor. I do not know about the TV support on GLP for 4460 and below. What software are you planning on using?

    In the 4470, the analog TV out is removed from silicon and the only TV out is HDMI irrespective of software.

    In terms of the memory differences, can you please point me to the document you are referring to and I can look into the answer.

  • 0 in reply to Matthew Kiser
    TI__Guru*** 125430 points

    I believe the memory improvement he's referring to is the presence of the "memory adapter" which gives a direct path for the Cortex A9 subsystem to talk to DDR, i.e. bypasses the L3 interconnect for lower latency.  That was an improvement of the OMAP4460.  You'll see this reflected in x-loader as there are some new registers called MA_LISA_*** that are programmed the same as the DMM_LISA registers for OMAP4460 and OMAP4470.

    The other obvious improvement that wasn't listed is that OMAP4460 supports speeds up to 1.5 GHz, provided you buy the 1.5 GHz version of the device of course!  The internal temp sensor was also improved, i.e. it's located physically closer to the hot spot of the chip (MPU subsystem) and is trimmed for better accuracy.  This allows more sophisticated thermal policies which have been implemented.