ADuC8xx interrupt latencies ?

Hi,

I'll get back to you on the interrupt latencies as soon as possible.

Regards,
Karl

For the ADuC814, the machine cycle consists of 12 core clock periods of the selected core operating frequency. While ADuC841 consists of 1 core clock period.

ADuC814 @ 16.78MHz - single cycle is around 715ns.
ADuC841 @ 20MHz - single cycle is around 50ns.

The interrupts flags are detected in the next machine cycle, and the ISR call takes two cycles. A minimum of three machine cycles elapses from the activation of the interrupt to the beginning of the ISR.

ADuC814, 3 machine cycle - 2.15us.
ADuC841, 3 machine cycle - 0.15us.

For the ADuC814, the machine cycle consists of 12 core clock periods of the selected core operating frequency. While ADuC841 consists of 1 core clock period.

ADuC814 @ 16.78MHz - single cycle is around 715ns.
ADuC841 @ 20MHz - single cycle is around 50ns.

The interrupts flags are detected in the next machine cycle, and the ISR call takes two cycles. A minimum of three machine cycles elapses from the activation of the interrupt to the beginning of the ISR.

ADuC814, 3 machine cycle - 2.15us.
ADuC841, 3 machine cycle - 0.15us.

Thanks, that helps and definately should be mentioned the in the "INTERRUPT SYSTEM" datasheet chapter.