I think what you are looking at is on the quark-d2000-customer-reference-board.pdf. It's on section 2.4 as shown by Table 2. SoC Pin Mapping.
Is that the table you looking at ?
PIN_OUT =0 is labelled as 10 on the silkscreen of the board. In writing the code, you will be using User Mode 0 and in reference to the board is the Arduino UNO R3.