I have been using software bit toggling to interface with a LTC1298 A/D
 converter.
I'd like to be able to use the SSP (in SPI mode) port instead of the bit
 toggling.

According to the '1298 data sheets, it symchronizes transfer with each bit being
 transmitted on the falling edge of SCK anfd captured on the rising edge of SCK
 for both transmitting and receiiving.

As far as I can tell, the PIC SSP will on transmit on rising and latch on
 falling SCK  It seems if you invert this behavior with CKP=1, then you still
 can't get the behavior that the '1298 expects.

I've done this on a 68HC11 SPI and it talks fine with the '1298.  However, the
 HC11 allwows both control of the clock polarity as well as the xmit/recv phase.

Any insight would be much appreciated.

Thanks
--Anil