I've found the data sheet of ICM 7217 Intersil.
Also found the example of circuit there.
But i don't know about thumbwheel switches, is it important in that circuit?
The data sheet explain that "The ICM7217 is intended for use in hard-wired applications where thumbwheel switches are used for loading data, and simple SPDT switches are used for chip control"
I can't understand about this statement.
COuld you please explain me?
or do you have another circuits?
it's hard to find the circuit example of ICM7217.
Here i attach data sheet.