5.2.1 Oscillator Options

MPLAB X IDE requires information about your target oscillator to simulate device execution and support the stopwatch feature. For more on the Stopwatch, see 2.4 Using the Stopwatch.

Table 5-1. Oscillator Options
Instruction Frequency (Fcyc) (Note 1,2)	Enter the instruction execution frequency value. The units are specified below. `Fcyc = Fosc/n`, where `n` is clock cycles per instruction. For example: PIC MCUs and dsPIC30F/PIC24F devices use 4 clock cycles per instruction. dsPIC33F/PIC24H devices use 2 clock cycles per instruction.
Frequency In (Note 1,2)	Specify the units for the instruction frequency above, either MHz, KHz or Hz.
RC Oscillator Frequency	For devices that have an internal RC oscillator, enter the RC oscillator frequency value. See the device data sheet for the range of possible values.
RC Oscillator Frequency In	Specify the units for the RC oscillator frequency above, either MHz, KHz or Hz.
Auxiliary Clock Frequency (Faux)	For devices that have an auxiliary oscillator, enter the auxiliary clock frequency value. See the device data sheet for the range of possible values.
Auxiliary Frequency In	Specify the units for the auxiliary frequency above, either MHz, KHz or Hz.
Note 1: These values will also be used to set certain fields in the Stopwatch. Note 2: Configuration bit settings will have no effect on processor speed, e.g., if using x4 PLL, simulator will run at processor frequency, not 4 times processor frequency.