With reference to datasheet of TCA8418 ( SCPS215B –SEPTEMBER 2009–REVISED MARCH 2010) , i want to clarify the Key events tracking in TCA8418 for the following scenario
- Press a key
- Interrupt INT occurs (INT goes low ie ASSERTED)
- Read the key event from the key event register
- Clear the K_INT bit of the status register
- Interrupt line INT goes HIGH(DEASSERTED)
- Key remains still pressed
- In this case will another interrupt be triggered , signalling the "KEY PRESS" for the same key?
- Or will the interrupt occur only when some other key event occurs or the pressed key (in our case) is released?