12.4.8 Reference Clock Output (REFOx)
The dsPIC33AK128MC106 family features one or more reference clock output (REFOx) modules. The REFOx module clock source is one of the CLKGENs (see Table 12-2 for assignments of CLKGENs to REFOx). The input clock to the REFOx is therefore the clock source of the associated CLKGENx, which can be any of the sources defined in Table 12-3. This selection includes reference clock inputs (REFIx) that are mappable to device pins using peripheral pin select (PPS). The REFO output signal is internally routed to select peripherals and can be routed to a device pin using PPS. Figure 12-19 illustrates REFO interconnections.