11.4.7 Virtual Output Pins

The virtual pins (RPVn) enable the user to connect internal peripherals, whose signals may be of significant use to other peripherals, but these outputs may not need to be presented to a device pin.

The concept of “virtual pins” enables device features to be mapped to other peripherals that do not otherwise have an dedicated connection.

A simple example use is a Fault input to the PWM from the CLC as shown in example 3-x. The CLC output is mapped to a virtual output pin (RPVn), and the PWM input is mapped to the virtual pin. Virtual pins are associated with an input index from Table 11-11.

// Map CLC output to virtual pin RP176
_RP176R = 0x28;          // 28 = CLC2OUT

// Map Input PWM PCI 8 to virtual output pin RP176
_PCI8R = 176