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E " , QJKR *$ * + *$ N! " + *$*$2! 6! *2! * 6! % 2 "!" ,!+ ,+ (&*' * /0).1(.!"' = #! 1* /0).1(." 21* /0).1(.!"'+ !2/' ;1* /0).1(.!";' '% %&!*'!! = #! 1'', %,1'', %& ' = #3>1'' , >1'' , ! ++!' = #'," ! " 6 ' *'2O%,"!" ,*' ( + , ! = #" 5!!+ '+,! ! 6 ! !2),. 0 !! + ' +, ! " !6 *. ('/ = #" E ! , ! % *'!%&!! E " , ! % *'!%&!! E ,! % *'!%&!! E 5 ! 6 **%GA5:SC 5! C+% *'!%&!! E 0,! % *'!%&!! E 5 ! 6 **%//A5TOC 5! C+% *'!%&!! E 0 !% *'!%&!! 2' . ' **' ' 5 0 (5/G$ T$ %5G %GA5: %5GA0 %//A5 %//A0 ((39+*((:+12 IDLE Power On Out(ALL) = Idle START Datain(ANY) = Act. & Collin(ALL) = /SQE :[N <- Port ( Datain = Act. )] BEGIN UCT Collin(ANY) = SQE :[ N <- Port ( Collin = SQE ) SEND PREAMBLE PATTERN Out(ALLXN) = Preamble Pattern Collin(N) = SQE + ( Datain(N) = Idle & Collin(ALL) = /SQE ) Collin(ANYXN) = SQE TT(ALLXN) >= 62 & DataRdy & Collin(ALL) = /SQE & Datain(N) = Act. SEND TWO ONES Out(ALLXN) = TwoOnes Collin(N) = SQE + ( Datain(N) = Idle & Collin(ALL) = /SQE ) Collin(ANYXN) = SQE TwoOnes Sent & Collin(ALL) = /SQE & Datain(N) = Act. SEND DATA Out(ALLXN) = Data Collin(N) = SQE + ( Datain(N) = Idle & Collin(ALL) = /SQE & AllDataSent & TT(ANYXN) < 96 ) Collin(ANYXN) = SQE TRANSMIT COLLISION RECEIVE COLLISION Datain(N) = Idle & Collin(ALL) = /SQE & TT(ALLXN) >= 96 & AllDataSent Out(ALLXN) = Jam Collin(ANYXN) = SQE Out(ALL) = Jam Collin(ALL) = /SQE & TT(ALL) >= 96 & Tw2Done Collin(ONLY1) = SQE & TT(ALL) >= 96 :[ M <- Port ( Collin = SQE ) ] Datain(N) = Idle & Collin(ALL) = /SQE & TT(ALLXN) >= 96 & Tw2Done ONE PORT LEFT Out(ALLXM) = Jam Collin(ANYXM) = SQE Datain(M) = Idle & Collin(ALL) = /SQE & Tw2Done WAIT StartTw1 Out(ALL) = Idle Collin(ANY) = SQE + Tw1Done "BE + 2"0 *''!%&' (+*+ * ! ! ! /0).1(. * !, !+!+ ! *$ !,!+1! ! /0).1(. ! ! , /0).1(. ," 1+ " 0%& , % !% * !,!+1! ! %& !! * , /0).1(. !" !11 !" 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