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About system time components

Three system time components are delivered with the SSE‑123 Example Subsystem product and integrated as an example in the SSE‑123 Subsystem and SSE‑123 Integration.

The system time components are as follows:

  • The System Counter generates a timestamp value that can be shared across the System on Chip (SoC).
  • The System Timer can raise an interrupt when a period has elapsed.
  • System Watchdog provides a mechanism to detect errant system behavior causing reset of the system if a period elapses without intervention.

The components are software‑programmable using APB interfaces. This section defines the programmers model of the components.

The following figure shows an example SoC that uses the system time components.

Figure B-1 Example SoC that uses the system time components

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