One of three AGC windows can be selected through {TAIL ~ associated register} according to one embodiment of {HEAD ~ the present invention} 
One of three AGC windows can be selected through { TAIL ~ associated register } according to one embodiment of { HEAD ~ the present invention }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD