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Dual Timer / Counter with Prescaler
Timer and counters are essential in CPU applications. Used to count events, measure time intervals or frequencies, or generate periodic timing events.
The TIMERmodule provides two independent 16-bit timers each with its own 16-bit pre-scaler. An additional pre-scaler is provided for applications where external high frequency events or clocks control the operation. The two timers can be locked for measurements over a given time span. Timer B provides the observation window while Timer A is counting events.
The operating mode of each timer can be selected independently:
- Free running: Timer is reloaded with initial value after counter reaches zero
- One-shot: Timer stops after reaching terminal count
- Window mode: Timer A counts while Timer B generates observation window
Each timer generates an interrupt upon arriving at terminal count zero. A count capture command is available to sample the current count state without interrupting the timer.
The TIMERmodule provides two independent 16-bit timers each with its own 16-bit pre-scaler. An additional pre-scaler is provided for applications where external high frequency events or clocks control the operation. The two timers can be locked for measurements over a given time span. Timer B provides the observation window while Timer A is counting events.
The operating mode of each timer can be selected independently:
- Free running: Timer is reloaded with initial value after counter reaches zero
- One-shot: Timer stops after reaching terminal count
- Window mode: Timer A counts while Timer B generates observation window
Each timer generates an interrupt upon arriving at terminal count zero. A count capture command is available to sample the current count state without interrupting the timer.
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Block Diagram of the Dual Timer / Counter with Prescaler
