Attaching Microcontroller to DAC evaluation board
Your DAC uses the SPI protocol.  For that you want to connect it to the SPI header. That's the 6-pin (3x2) header numbered 11 on the uC32.

Connect:


The uC32's SCK pin to the DAC's SCLK
The uC32's SDO pin (MOSI) to the DAC's SDIN pin.
The uC32's SDI pin (MISO) to the DAC's SDO pin.


The other pins (I am not sure what they all do off hand, but the datasheet details them) can connect to any GPIO pins you like (except pins 11-13 which duplicate the SPI header - so you could use those instead if you prefer - 11=MOSI, 12=MISO, 13=SCK).