T pafiripi-chips on whitekuva. Musimboti oparesheni, asi dzichipfekeka redunhu

Rinokonzera - zano nyore ndiyo digital muchina. It ane mbiri inoti rakatsiga. Mumwe izvi ezvinhu ari basa kukosha "1" uye mumwe "0". Mudziyo chinzvimbo, uye kukosha mashoko binary iyo inochengeterwa zvirimo, goho anonongedzera akatsunga: Direct uye inverted. In Kana apo zvakananga goho dzingangoitika chichasimbiswa, iyo yakafanana pfungwa imwe, ipapo mamiriro ari pafiripi-chips on whitekuva akadana unit (zvinogona panguva inverted goho unoenderana yakarongeka razero). Kana zvakananga goho hakusi zvinogona, ipapo chikungiso ezvinhu anonzi razero.

Zvinokonzera dzinoiswa nemashoko anotevera zvinhu:

1. Pakazosvika nzira pakunyora mashoko (synchronous uye asynchronous).

2. By nzira dzokudzora mashoko (nhamba, hunosanduka, chimwe-chikuva, multistage).

3. By nzira Kuzadziswa akanyatsorongwa kwokubatana (JK-pafiripi-chips on whitekuva, RS-kunokonzera T pafiripi-chips on whitekuva, D-pafiripi-chips on whitekuva uye mamwe marudzi).

The chikuru parameters pakubhadhara vose ude vari: kunonyanyisa ya mazano chiratidzo, kunonoka nguva inodiwa yokuti nokuchinja ari pafiripi-chips on whitekuva, uye achitendera oparesheni nguva.

Munyaya ino, ngatimbotaura pamusoro ichi mhando mudziyo, sei - T pafiripi-chips on whitekuva. ude vakadaro vane chete mashoko (T) chiyamuro, unonzi kuverengwa chiyamuro. It anoshandura isostoyanie rayo pashure kubvuma kuti count (T) mazano mumwe nokudzora chiratidzo.

Maererano tafura kuchinja, mutemo kushanda kwakadaro pafiripi-flops kunorondedzerwa ne maitiro mukana wokuti vanhu vanga: Q (T + 1) = TtQ't V T'tQt. Kubva mukana wokuti vanhu vanga zvinoreva kuti kana uchitsvaka mukova (T) iri pfungwa razero, kubva T pafiripi-chips on whitekuva icharega mamiriro ayo sezvo kupomba goho chikwata kuchinjwa.

Tafura rinoratidza kuti T-pafiripi-chips on whitekuva anoita kuwedzera kushanda, uye izvi zvakaguma wenyaya iyi chikungiso kuverengwa, ayo mashoko (T) chiyamuro-kuverengwa chiyamuro. Chiratidzo pamwero pa mazano ari chihuri rinowanika kaviri kakawanda kupfuura goho rayo (Q). Nokudaro, T-pafiripi-chips on whitekuva senzira Frequency mugoveri.

T-rukungiso asynchronous mhando kunogona kuvakwa kwakavakirwa maviri mudariro RS pafiripi-chips on whitekuva Zvimwe kubatana, zvinoti: chikungiso goho (Q) inofanira chokuita mazano (R), uye goho (Q ') ane chiyamuro (S). Data chiyamuro (T) ichava synchronous chiyamuro (C).

Mufananidzo unoratidza T-pafiripi-chips on whitekuva. Scheme dzichipfekeka.

In pokuiswa mamiriro, mashoko chiyamuro pafiripi-chips on whitekuva (R uye S) zvokudya pfungwa-razero sandara, kana kureva pakaunda (T) mazano ari musoro razero kwaizoitika zvachose kopi mamiriro wokutanga pafiripi-chips on whitekuva kechipiri pafiripi-chips on whitekuva, nokuti UYE-NO ichocho richabereka munhu pfungwa imwe pamwero pamusoro mazano wechipiri pafiripi-chips on whitekuva. Kana T-pafiripi-chips on whitekuva vari mumamiriro kubatana, ipapo zvinoshandisa pakurima (R uye S) achazvipiwa kuti kwevari razero uye mumwe azvaitwa. On kubvuma kuti kuverenga mazano wokutanga Mureza munhu akaenzana inonzwisisika mumwe, zvakanyorwa munzvimbo yokutanga pafiripi-chips on whitekuva pfungwa chikwata. Mamiriro wechipiri pafiripi-chips on whitekuva haachinji, nekuti pachiyero razero kubva goho resuwo NAND haina nemutemo ezvinhu ake. Mushure dzichibvisa kuverengwa kupomba chiyamuro (T) yakaiswa kuti zero, uye chechipiri rukungiso haizoshandisi kuti pfungwa chete.

In mufananidzo T-synchronous rukungiso. Scheme dzichipfekeka.

Synchronous T pafiripi-flops anoshandiswa kana zvakakodzera kuti umiririre kutevedzana kwezviitiko akanyatsorongwa rimwe zvinogona panguva T pafiripi-chips on whitekuva chiyamuro.