I would like to ask about the input signal to GPIO of i.MX28.
According to i.MX28 datasheet(Table 25 Digital Pin DC Characteristics for GPIO in 3.3-V Mode), GPIO input ports have 0.8V-2V of threshold voltage.
In my customer’s board, some GPIO pins are used for input signals which have slow rise/fall time. For the input signals from external, it takes about 1mSec to cross the threshold range of 0.8-2V.
My customer worries whether such input to GPIO could affect to the reliability of i.MX28.
Are there any problems for that?