Dsg d  n q   &f&i page &p of &nArialdo z @ E?"@y yW#` 2 & & & & IX# K@   @8 @8 h[")  b`T`T`T`T`T}"=H220 - -" B @ @}" ""~ b ` `}" ""^ ` ` }" ""> @ @ }" ""        }" ""d )e e) )}"""H FH HF F}""">B/@ @@@/W#X#"^b/` `@`/W# X#" ~/ @/W# X#" / @/W#X#f"\pm`/9ppkp" He//H/e/X#X#"]l(6g"P$05`/ppkpg"u@~pPFpPFkPFkxipxiW#2 & & & & IX#K@   @8 @8 h["  b`T`T`T`T`T}"H220 - -" B @@}" "" b ``}" ""~ }" ""^{`{ `{}" "">_ @_ @_  }" ""C) C  C))}"""&F' 'FF}"""^{b{/`{ `{@`{/W#X#"~/ @/W# X#"/ @/W# X#"/ @/W#X#f":K`/9ppkp"&"C//'/ C/X#X#"<(J(6g"pP`/ppkpg"Sd@~pPFpPFkPFkxipxiW#2 & & & & IX#K@   @8 @8 h["   b`T`T`T`T`T}" H220 - -"ޭB @@}" ""b ``}" ""uu u}" ""~YY Y}" ""^= `= `=  }" "">!)@! @!))}"""F   FF}"""~YY/Y Y@Y/W#X#" uu/u u@u/W# X#"!‘/ @/W# X#""ޭ/ @/W#X#f")`/9ppkp"#B!// /@!/X#X#"8H((6g"p`/ppkp"$HHmbH`H HmW#"%&"mb'm m `W#"&&'mb'm''`W#"'B!^5b `5@!`5@!`" ,=5  W# ""@0ev DIRECTION1* "(>jmm@mjm""AOft")H'mmHm'm".ftW#@/2 & & & & IX#2/K@   @8 @8 h[}"_H220 - -"*~/B @/@}" "K  b`T`T`T`T`T"+^/b` ``/`}" "",>/@ @/}" ""-/   /}" ""./   / }" ""/ކ/) )/)}"""0j/Fj jF/F}"""1"/   @ /W#X#"2>B/@ @@@/W# X#"3^b/` `@`/W# X#"4~/ @/W#X#f"p~P`/9ppkp"5j//j//X#X#"(6g"0FW`/ppkp"6jjmbj`j jmW#"cqft"g"@~pPFpPFkPFkxipxi"7jHmmjmHmg"2 B >~~pPFpPFkPFkxipxig"P0 `ppTkp"@pRESET0r "8>N@N""9,,b,`,W#"GU":NNbNN`W#";, , "%3"<N,,N"= b `W#" ">  b  `W#"?d>B @F@F@e@e`W#W# "@C°>B C` C@ $@ $@@ W# W#"Aކ>B @g@g@@`W#W# g" 0 `ppTkp"B^b``W#W#" Xh"C^b``W#W#" ȷXhg"  `ppTkp"D~^b``W#W#" xXhg"   `pptkp"E^2^b2```W#W#" XhXhd`p{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20\b A 4 digit Ripple Counter} }d2 Cs{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs20 In the simulation, you will notice how the digits change one after the other when rolling over from 9999 to 0000. This is because the simulated displays take a bit longer to react, but it emphasises the difference betweeen Ripple counters and Synchronous counters.\par \ql \x\fs20 \par \ql \x\fs20 NOTE: It is important that the direction input only changes when the clock input is high. Try changing the direction in the simulation and note how sometimes it jumps a digit. This is because the direction was changed when the clock was low.} }@ @?"@