RS-pore-pikitia. Ko te parau tumu o te mahi, hoahoa mahi, tepu whakawhiti

Tīmata - he pūrere ohie ko te mīhini mamati. He pūmautanga kāwanatanga rua. Ko tētahi o ēnei tikanga tautapatia te he uara "1", me te tahi atu - "0". Keu huru, me te uara o te mōhiohio ā-rua kei te rongoa nei reira, whakaritea nga tohu putanga kei te: Direct me kōaro. I roto i te take i reira whakapumautia te pūmanawa putanga tika te, e hāngai ana ki te arorau kotahi, te āhua o hoho'a-pikitia ka karanga te kōwae (te pūmanawa i te putanga Taupokia he kore). Ki te kore te mea pea te putanga tika, ka karangatia e te huru keu te kore.

Whakaröpütia pāngia e te taha o te āhuatanga e whai ake nei:

1. Na te tikanga o te tuhi kōrero (tukutahinga me tukutahingakore).

2. I te ara o te mōhiohio mana (tatauranga, hihiri, kotahi-atamira, multistage).

3. I te ara o te iteraa o te hononga arorau (JK-hoho'a-pikitia, RS-pāngia e, T-Triger, D-hoho'a-pikitia , me te tahi atu momo).

Ko te tawhā matua o ngā momo katoa o pāngia e he te uara nui o te tohu roa tāuru, te wa roa e hiahiatia ana mō te whakawhiti i te hoho'a-pikitia, me tuku wā mahi.

I roto i tenei tuhinga, kia kōrero a pā ana ki tenei momo o te pūrere, rite RS-hoho'a-pikitia. Ko ratou o rua momo: tukutahinga me te tukutahingakore.

E rua ngā rārangi āta (R me S) tāuru tukutahingakore RS-hoho'a-pikitia. mahi tenei pūrere rite ki te tepu whakawhitinga.

Rāhuitia hoki taua hoho'a-pikitia ko te huinga o tohu i nga kōkuhunga o te pūrere, meinga he āhua o te papû ore. Ka taea te faaite i tēnei huinga rite te whakaritenga RtSt = 0. I roto i whakaiti whakaaturia te mahere Karnaugh mahi keu ture, e kiia nei ko te whārite āhuatanga: Q (t + 1) = St V R'tQt. Ko te kupu RtSt Ko te kore.

I runga i te hoahoa mahi whakaatu nga RS-hoho'a-pikitia tukutahingakore momo NAND me tuarua te mahi i runga i NOR āhuatanga.

Ko te momo tuarua - tukutahinga RS-FF. He pera ano te pūrere te hanganga kua toru kōkuhunga tika S, R, a C. Ko te rerekētanga i waenganui i te tukutahinga me tukutahingakore momo hoho'a-pikitia ko te aroaro o te tāuru tukutahinga (C). He tika te reira mo nga take e whai ake nei: no te mea i roto i te kōkuhunga pūrere e tonoa (arorau huānga) tohu kore wā kotahi tonu. Ko e tika ana ki te meka e haere ratou i roto i ngā momo rerekē, me te maha o nga kōpuku e whai takaroa rerekē tenei. huaina ana tēnei āhuatanga ko te "kēmu." Ka rite ki te hua o taua "ngā" Ka uara tohu whiwhi kia superimposed i runga i nga uara o mua o te tahi atu tohu. arata'i tenei katoa ki te whakaaro whakaoho teka.

Ka taea te whakakorea tenei āhuatanga i te faaohiparaa i te tohu tāuru wa pūrere gating. Ara, i te wāhi o NAND kuwaha anake tika tohu mōhiohio tukua ngātere tukutahinga matua, tenei mōhiohio wa ki nga tohu tāuru whai wa ki te maukati ki te tāuru.

Ko te huru matua mō te mahi tika o whakawhiti wāhanga arorau i roto i te RS-hoho'a-pikitia, me te arorau whakahaeretia e ratou - Rt unacceptability mahi tukutahi ranei tohu St, he pūrere whakawhitinga, me ngā mōhiohio tiki i te Q putanga (t + 1) pore-pikitia. I roto i tenei whakaaro, kei te raupapa pea āhuatanga tukutahinga anake.

RS-momo hoho'a-pikitia āhuatanga tukutahinga kanohi e te whārite: Q (t + 1) = StCt V R'tQt V QtC't.

E whakaatu ana te whakaahua i te momo tukutahinga RS-keu NAND. Tāuru AND tatau, tuku NOT wae arorau te ki te S tāuru raraunga whakawhitinga R ranei mo te kōkuhunga tika pato RS tukutahingakore kohao ki tāuru Taupokia anake, no te te wāhi ki tukutahinga (C) tohu i arorau kotahi.