> the SDI pin on the PIC is left floating and its TRIS bit is
> cleared. I do not know whether it remains an output when
> the SPI module is enabled

Sean, I don't believe you can disable SDI if SPI is enabled, for the
dsPICs I use anyway. SDO and SCLK you can. If that's true for
the 610 then SDI will be a floating input and a accident waiting to
'appen

Look at the control bits in SPIxCON1

Joe
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