//
// InitSpiaGpio - This function initializes GPIO poins to function as SPI pins
//
void
InitSpiaGpio()
{
    EALLOW;

    //
    // Enable internal pull-up for the selected pins
    // Pull-ups can be enabled or disabled by the user.
    // This will enable the pullups for the specified pins.
    // Comment out other unwanted lines.
    //
    GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0;   //Enable pull-up on GPIO16 (SPISIMOA)
    GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0;   //Enable pull-up on GPIO17 (SPISOMIA)
    GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0;   //Enable pull-up on GPIO18 (SPICLKA)
    GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0;   //Enable pull-up on GPIO19 (SPISTEA)

    //GpioCtrlRegs.GPBPUD.bit.GPIO54 = 0; //Enable pull-up on GPIO54 (SPISIMOA)
    //GpioCtrlRegs.GPBPUD.bit.GPIO55 = 0; //Enable pull-up on GPIO55 (SPISOMIA)
    //GpioCtrlRegs.GPBPUD.bit.GPIO56 = 0; //Enable pull-up on GPIO56 (SPICLKA)
    //GpioCtrlRegs.GPBPUD.bit.GPIO57 = 0; //Enable pull-up on GPIO57 (SPISTEA)

    //
    // Set qualification for selected pins to asynch only
    // This will select asynch (no qualification) for the selected pins.
    // Comment out other unwanted lines.
    //
    GpioCtrlRegs.GPAQSEL2.bit.GPIO16 = 3; // Asynch input GPIO16 (SPISIMOA)
    GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // Asynch input GPIO17 (SPISOMIA)
    GpioCtrlRegs.GPAQSEL2.bit.GPIO18 = 3; // Asynch input GPIO18 (SPICLKA)
    GpioCtrlRegs.GPAQSEL2.bit.GPIO19 = 3; // Asynch input GPIO19 (SPISTEA)

    //GpioCtrlRegs.GPBQSEL2.bit.GPIO54 = 3; // Asynch input GPIO16 (SPISIMOA)
    //GpioCtrlRegs.GPBQSEL2.bit.GPIO55 = 3; // Asynch input GPIO17 (SPISOMIA)
    //GpioCtrlRegs.GPBQSEL2.bit.GPIO56 = 3; // Asynch input GPIO18 (SPICLKA)
    //GpioCtrlRegs.GPBQSEL2.bit.GPIO57 = 3; // Asynch input GPIO19 (SPISTEA)

    //
    // Configure SPI-A pins using GPIO regs
    // This specifies which of the possible GPIO pins will be SPI
    // functional pins.
    // Comment out other unwanted lines.
    //
    GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 1; // Configure GPIO16 as SPISIMOA
    GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 1; // Configure GPIO17 as SPISOMIA
    GpioCtrlRegs.GPAMUX2.bit.GPIO18 = 1; // Configure GPIO18 as SPICLKA
    GpioCtrlRegs.GPAMUX2.bit.GPIO19 = 1; // Configure GPIO19 as SPISTEA

    //GpioCtrlRegs.GPBMUX2.bit.GPIO54 = 1; // Configure GPIO54 as SPISIMOA
    //GpioCtrlRegs.GPBMUX2.bit.GPIO55 = 1; // Configure GPIO55 as SPISOMIA
    //GpioCtrlRegs.GPBMUX2.bit.GPIO56 = 1; // Configure GPIO56 as SPICLKA
    //GpioCtrlRegs.GPBMUX2.bit.GPIO57 = 1; // Configure GPIO57 as SPISTEA

    EDIS;
}