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Discussion Groups | Freescale DSPs | 56F8365 Help when Configuring peripheral for GPIOC [0:3] using SIM_GPS

Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).

  

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56F8365 Help when Configuring peripheral for GPIOC [0:3] using SIM_GPS - oyedejimummy - Feb 28 6:55:46 2008



Hi,
I would like to configure pin 0-1 to PhaseA1/PhaseB1 and pins 2-3 to 
SCI (MISO and MOSI). However the manual is not clear about if this is 
possible (reading about the SIM_GPS). It seems that all four GPIOC pins 
[0:3] have to be configured to the same function (GPIO OR Quad 
decoder/Quad Time B OR SPI1) even though the actual configuration 
through SIM_GPS is done individually.
My conclusion is that I will not be able to use GPIOC pin 2 and 3 sor 
SPI1 signals even though the Quadrature decoder is configured to 
operating mode 2 (ie only using filtered PHASEA and PHASEB signals).

Is my conclusion correct?
If not where is the information that supports this?



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