Specifications

mikroElektronika | Free Online Book | PIC Microcontrollers | Chapter 8: Other MCU's Circuits
Fig.8-14 Enable Int-Ext Switchover
Fail-Safe Clock Monitor
The Fail-Safe Clock Monitor (FSCM) monitors the operation of external oscillator and allows the microcontroller to proceed
with program execution even the external oscillator fails for some reason. In this case, the internal oscillator takes over
its role.
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