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RM57L843 ports

jarar shah
Prodigy 20 points
Other Parts Discussed in Thread: RM57L843, HALCOGEN

For RM57L843 CPU the pins are multiplexed for I/O operation suppose GPIO/N1HET or EMIF and ETM.

What if one needs both functions on a pin like GPIO and RMII etc.

Is it possible to have both functions becuase this limits the I/O capability/ports  of the CPU

please help.

 

  • 0
    TI__Mastermind 22375 points

    Jalis,

    I'm not sure I understand your question.

    When multiple function are multiplexed on a physical ball/pin, the user application has to configure the Pin Muxing module to bring in and out the selected function.
    At one time, only one function can be bring to a ball/pin, but because this selection is software controlled, it is possible to have an application changing at run time the function of a ball/pin.

    Halcogen provides an easy way to program the pin muxing, either by selecting a function at a ball/pin level or at a global module level. For example, if EMIF has to be used, instead of going signal by signal, it is possible to check EMIF check box and all the necessary signal used by EMIF will be mapped accordingly.

    Some signal are mapped to more than 1 physical ball/pin. This allow the end user to customize the device to match the use case.

    Please let me know if I've answered your question