User Guide

legitim atetrans m is s ions independent ofthem icrocontroller.T hes efeatu res can beenabled
u s ingtheR C A.In this s etu p,thepream bleands yncword length can bem odifiedandthes ync
word pattern can bes elected.Ifthepream bleis greaterthan orequ alto 4bytes ,thedev ice
u s es thepream bledetection circu it with a 2-bytedetection thres hold.Ifthepream bleis les s
than 32 bits ,then at leas t two bytes ofs yncword arerequ ired plu s at leas t onebyteof0101
pattern (3bytes total).In this cas e,pream bledetection is s kipped,and only s yncword
detection is u s ed.Forany com bination ofpream bleand s yncwordles s than threebytes ,the
dev icewillu s edirect m ode.T hegeneralpacket s tru ctu reis s hown in Figu re12
Figu re12.Packet Stru ctu reforFixedPacket L ength
.
Figu re13.Si4455R F m odu le
Figure14.S i4455R Fm odule+ GB300