PIC16LF18854 Datasheet, PDF (376/668 Pages) Microchip Technology – C Compiler Optimized RISC Architecture

PIC16(L)F18856/76
24.0 NUMERICALLY CONTROLLED
OSCILLATOR (NCO) MODULE
The Numerically Controlled Oscillator (NCO) module is
a timer that uses overflow from the addition of an
increment value to divide the input frequency. The
advantage of the addition method over simple counter
driven timer is that the output frequency resolution
does not vary with the divider value. The NCO is most
useful for application that requires frequency accuracy
and fine resolution at a fixed duty cycle.
Features of the NCO include:
• 20-bit Increment Function
• Fixed Duty Cycle mode (FDC) mode
• Pulse Frequency (PF) mode
• Output Pulse Width Control
• Multiple Clock Input Sources
• Output Polarity Control
• Interrupt Capability
Figure 24-1 is a simplified block diagram of the NCO
module.
DS40001824A-page 376
Preliminary
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