I'm developing a custom board with i.MX6SL and have questions about slew rate.
There are following description in chapter 18.104.22.168 in RM.
"Additional 2-bit slew rate control to select between 50, 100, and 200 MHz IO cell operation range with reduced switching noise"
I think that those settings correspond to "SPEED" field in Pad Control Register. Am I correct ?
Those are cutoff frequency. Am I correct ?
If Q1 is correct, both of "SPEED" field and "SRE" field are correspond to slew rate.
What the difference between them ?
There is "SRE" field in Pad Control Register and it have "SLOW" and "FAST" settings.
Are there specific value to each settings ?