I tried using an enum as a parameter and it worked well but not quite like I expected.
Consider the sample code:

public enum myEnum : byte
{
  SR0 = 0xE0,
  SR1 = 0xE1,
  SR2 = 0xE2
}

public static void myMethod (myEnum paraMyEnum)
{
  MessageBox.Show(((byte) paraMyEnum).ToString());
}

Now I would this that I could only call my myMethod passing only one of these three parameters: myEnum.SR0, myEnum.SR1 or myEnum.SR2 but it appears I can call myMethod with any byte as a parameter (and even something that can be converted to byte without loss of accuracy like an int).

So is there any way, other than checking if the passed parameter is contained in the enum, to ensure that I am only passed a certain parameter?

Einar