D-choyambitsa: mfundo opaleshoni, tebulo choonadi

Choyambitsa - ndi maziko wagawo amapanga ndi digito basi awiri boma bata, mmodzi amene wapemphedwa mtengo "1", ndi zina - "0".

Mu njira kuzindikira kugwirizana zomveka kusiyanitsa mitundu zotsatirazi zipangizo: T-pepala-kulephera, D-pepala-kulephera, JK-pepala-kulephera, RS-akapsa. Kumene, apa ndi options ambiri, koma kupatula iwo pali zipangizo basi ndi zina.

M'nkhaniyi, ife tione pa D-choyambitsa. Anati makina ali ndi mfundo limodzi (D) athandizira Choncho, cholinga kukhazikitsa nthawi kuchedwa ntchito.

Mfundo ntchito

Khalidwe aone kuti pali Q _{(T + 1)} = Deuteronomo limafotokoza machitidwe a mtundu wa chipangizo monga D-pepala-kulephera. Choonadi tebulo (Table kusintha) kwa makina boma chili m'munsimu.

Monga tikuonera, choyamba ndi mzere wa chinayi wa chizindikiro mfundo Q pa nthawi T ndi t + 1 mwamalunji. Ndiko kuti, D-pepala-kulephera ndi chinthu chizindikiro yomweyo. Chifukwa zipangizo asynchronous mtundu atasinkhasinkha sapezeka ntchito yawo, monga linanena bungwe adzabwereza athandizira mbendera ndi yaing'ono nthawi yomweyo.

D-mtundu pepala-kulephera inamangidwa wa synchronous umodzi mlingo (osakwatira gawo) ndi duplex (awiri gawo) RS-zipangizo za mtundu womwewo. makina amenewa ntchito monga tebulo kusintha.

Single-siteji D-pepala-kulephera akhoza kukhazikitsidwa kwa wosanjikiza umodzi wa synchronous RS-zida ndi chimodzi ndi HE1, zomwe zikugwirizana ndi mfundo wamba (D) Muzifunsa awiri D-osiyanitsidwa athandizira choyambitsa.

Pa chiphaso cha mfundo ziro pa wotchi athandizira RS mtundu zodziwikiratu mlingo mfundo wani oletsedwa ndi zotuluka zinthu NDI-NO ₂ ndi NDI-NO _3. Pamene kusintha kulunzanitsa chizindikiro mlingo ntchito kwa athandizira deta, kapena amalenga tawerenga ziro pa athandizira S (pa D = 1) kapena athandizira R (ndi D = 0) ndi asynchronous choyambitsa T. Izo kusinthana kwa boma lolingana mlingo zomveka D. wosakwatira D-mtundu pepala-kulephera akuzengereza Wofalitsa athandizira pa chete kwa pakati synchronizing chizindikiro.

D-pepala-kulephera ndi ulamuliro wamphamvu. Job Kufotokozera zinchito chithunzi

Makinawa chipangizo cha mtundu inamangidwa atatu RS-choyambitsa asynchronous mtundu. Iwo zochokera NAND, awiriwo kuchita kusinthitsa ntchito, ndipo yachitatu linanena bungwe. The zotuluka wa kusinthitsa choyambitsa cholinga kulamulira linanena bungwe choyambitsa.

Pamene mlingo wa chizindikiro C wofanana ndi ziro zomveka, kuti linanena bungwe ndi zolowetsa choyambitsa amaperekedwa kwa izo ndale chizindikiro osakaniza, ndipo kugwiritsa akafuna yosungirako. Pamene kusintha mfundo chizindikiro kusinthitsa akapsa ku mode kugona, ndi mbendera ndi athandizira ku athe mfundo imodzi choyambitsa athandizira C, linanena bungwe la automaton uli woikidwa ndi mkhalidwe watsopano womwe ndi mfundo chizindikiro pa D-athandizira mu mkombero m'mbuyomu.

Ngati kumene mudziwe chizindikiro kusintha mlingo zidzachitike mu unsembe wa linanena bungwe choyambitsa chizindikiro pamene chipangizo kusinthitsa Kodi sudzatha. Iwo likukhalira kuti cholinga cha kusintha choyambitsa ndi phwando zizindikiro zambiri, kusamutsa iwo chipangizo linanena bungwe nthawi ya kusintha athandizira chizindikiro pa ulamuliro athandizira C ku mfundo ziro ndi mfundo imodzi ndi latching chizindikiro ku ndemanga athandizira zambiri.