PSoC 4 Interrupt Latency | Cypress Semiconductor
PSoC 4 Interrupt Latency
Does anyone know what the interrupt latency is for the PSoC 4? I am running a 4200 with an external 48MHz clock. When I trigger an interrupt with a timer compare, there is an 800ns delay before the ISR toggles an output line. I am using a register write, not one of the generated functions. My understanding was that latency for M0 was 16 cycles. If that was the case, the delay would only be about 350ns. Am I doing something wrong, or are interrupts slow on this MCU?
A search of the data sheet and technical reference manual did not reveal any answers.