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How fast is the CLA interrupt response?

April 26, 2017CLA fast interrupt Response

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How fast is the CLA interrupt response?

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The CLA does not service nontime-critical interrupts (e.g. communication ports) and there is no nesting of interrupts. In addition the CLA receives interrupts directly, not through the peripheral interrupt expansion block (PIE). Because of this, the CLA has a very low interrupt response delay. At the 7th cycle after an interrupt the first instruction will be in the decode 2 (D2) phase of the pipeline. In addition, the CLA can easily read the ADC result register as soon as it is available. Also see Tasks and Interrupts and Accessing Peripherals.