MPR084

Sensors

Freescale Semiconductor

23

Preliminary

7.4.1

IRQ Pin Timing

The MinInterruptPeriod is implemented as a hold off of IRQ latching per Figure 25 and Figure 26. In the first case the

MinInterruptPeriod is longer than the interval between sequential interrupt source events, thus it delays the IRQ from latching

until the MinInterruptPeriod has elapsed. In the second case the MinInterruptPeriod is shorter than the interval between

sequential interrupt source events, thus the IRQ latches as it normally would without additional delay.

Figure 25. IRQ Timing Diagram - Case 1

Figure 26. IRQ Timing Diagram - Case 2

Initial Interrupt Event

MinInterruptPeriod

Second Interrupt Event

IRQ

Initial Interrupt Event

MinInterruptPeriod

Second Interrupt Event

IRQ