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Application Notes/
Technical Brief
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AN580
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Title:
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Using Timer 1 in Asynchronous Clock Mode
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Name:
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AN580
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Date:
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11/22/99
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Author:
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Mark Palmer
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Description:
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This application note discusses the use of the PIC16CXXX Timer1 module as an asynchronous clock. The Timer1 module has it own oscillator circuitry, which allows the timer to keep real-time, even when the device is in SLEEP mode. When the device is in sleep, the oscillator will continue to increment TMR1. An over-flow of the TMR1 register causes a TMR1 Overflow Interrupt (if enabled) and will wake the processor from
sleep. The interrupt service routine can then perform the desired task.
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Keywords:
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PIC16CXXX
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Related Information
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App Notes and Source Code
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AN580
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