1A regular arrangement of logic gates.All of the clever radio processing is done on the digital board, not by the ARM processor but by a dedicated field programmable gate array and digital signal processor....
A field programmable gate array is a user-programmable piece of silicon constructed in very large-scale integration technology.
In its simplest implementation, it can fit inside a standard field-programmable gate array.
1.1An electronic chip consisting of a regular arrangement of logic gates.