數字電路存儲單元

1. 閫昏緫鍗曞厓lut鏄浠涔堟剰鎬濓紵

lut鏄涓縐嶅父瑙佺殑鏁板瓧鐢佃礬鍏冧歡錛屽叾鑻辨枃鍏ㄧО涓簂ook-up table錛屾剰涓烘煡鎵捐〃銆俵ut鍙浠ョ湅浣滀竴縐嶅瓨鍌ㄥ櫒錛屽叾涓瀛樺偍浜嗘煇浜涜緭鍏ュ兼墍瀵瑰簲鐨勮緭鍑哄箋俵ut閫氬父鐢ㄥ湪鏁板瓧淇″彿澶勭悊鍜屾暟瀛楅昏緫鐢佃礬涓錛屽彲浠ユ彁楂樿繍綆楅熷害鍜屽噯紜搴︺傚畠鑳藉熷湪寰堢煭鐨勬椂闂村唴鏍規嵁杈撳叆淇″彿鏌ユ壘鍒扮浉搴旂殑杈撳嚭淇″彿錛屽悓鏃跺彲浠ュ噺灝戣繍綆楃殑鏃墮棿鍜屽嶆潅搴︺

lut鍦ㄦ暟瀛楃數璺涓鏈夊箍娉涚殑搴旂敤銆傚湪鏁板瓧淇″彿澶勭悊涓錛宭ut閫氬父鐢ㄤ簬鍌ㄥ瓨鏌愪釜鍑芥暟鐨勭繪暎鍊箋備緥濡傦紝閫氳繃lut鍙浠ラ勫瓨鍌ㄦｅ雞鍑芥暟鐨勭繪暎鍊礆紝褰撹＄畻鏃朵嬌鐢╨ut浠ｆ浛璁＄畻鏈虹殑姝ｅ雞鍑芥暟錛屽彲浠ュぇ澶ц妭鐪佽＄畻鏃墮棿銆傚湪鏁板瓧閫昏緫鐢佃礬涓錛宭ut閫氬父鐢ㄤ簬瀹炵幇鍩烘湰鎿嶄綔錛屼緥濡傚姞娉曘佸噺娉曘佷笌銆佹垨銆侀潪絳夐昏緫榪愮畻銆

lut甯稿父琚鐢ㄤ簬fpga鑺鐗囩殑瀹炵幇錛屼嬌寰楀嶆潅鐨勯昏緫鐢佃礬鍙浠ュ湪涓涓鍗曠嫭鐨勮姱鐗囦笂瀹炵幇銆 灝界lut鍦ㄦ暟瀛楃數璺涓鏈夌潃騫挎硾鐨勫簲鐢錛屼絾瀹冧篃瀛樺湪涓浜涘矓闄愭с俵ut鐨勫疄鐜伴渶瑕佸ぇ閲忕殑瀛樺偍鍗曞厓鍜屼竴瀹氱殑閫昏緫鐢佃礬錛岃繖浣垮緱瀹冪殑瀹炵幇鎴愭湰鐩稿硅緝楂樸傚悓鏃訛紝lut鍙鑳藉疄鐜扮繪暎鐨勫偍瀛樺拰榪愮畻錛岃屾棤娉曞儚妯℃嫙鐢佃礬涓鏍峰疄鐜拌繛緇鐨勮繍綆椼備負浜嗕紭鍖杔ut鐨勬ц兘錛屽彲浠ラ氳繃鍘嬬緝鍜屼紭鍖栫粨鏋勭瓑鏂規硶鍑忓皯瀛樺偍鍗曞厓鍜岄昏緫鐢佃礬鐨勪嬌鐢錛屾彁楂樻晥鐜囧拰鍑忓皬瀹炵幇鎴愭湰銆

2. CO-閿佸瓨鍣(Latch)

閿佸瓨鍣(Latch)錛屾槸鏁板瓧鐢佃礬涓鐨勪竴縐嶅叿鏈夎板繂鍔熻兘鐨勯昏緫鍏冧歡錛屾槸涓縐嶅硅剦鍐茬數騫蟲晱鎰熺殑瀛樺偍鍗曞厓鐢佃礬錛屽彲浠ュ湪鐗瑰畾杈撳叆鑴夊啿鐢靛鉤浣滅敤涓嬫敼鍙樼姸鎬侊紝鍒╃敤鐢靛鉤鎺у埗鏁版嵁鐨勮緭鍏ワ紝鍖呮嫭涓嶅甫浣胯兘鎺у埗鐨勯攣瀛樺櫒鍜屽甫浣胯兘鎺у埗鐨勯攣瀛樺櫒銆

閿佸瓨錛屽氨鏄鎶婁俊鍙鋒殏瀛樹互緇存寔鏌愮嶇數騫崇姸鎬侊紝鍦ㄦ暟瀛楃數璺涓鍒欏彲浠ヨ板綍浜岃繘鍒舵暟瀛椾俊鍙封0鈥濆拰鈥1鈥濄傚彧鏈夊湪鏈夐攣瀛樹俊鍙鋒椂杈撳叆鐨勭姸鎬佽淇濆瓨鍒拌緭鍑猴紝鐩村埌涓嬩竴涓閿佸瓨淇″彿銆傞氬父鍙鏈0鍜1涓や釜鍊箋

8浣嶉攣瀛樺櫒74LS373鐨勯昏緫鍥懼傚浘鎵紺猴細

鍏朵腑浣胯兘絝疓鍔犲叆CP淇″彿錛孌涓烘暟鎹淇″彿銆傝緭鍑烘帶鍒朵俊鍙蜂負0鏃訛紝閿佸瓨鍣ㄧ殑鏁版嵁閫氳繃涓夋侀棬榪涜岃緭鍑恆

寰澶勭悊鍣ㄤ腑榪愮畻鍣ㄩ儴鍒嗕富瑕佺數璺緇撴瀯錛屼綔鐢ㄦ槸闃叉㈢畻鏈閫昏緫鍗曞厓鐨勮緭鍑洪氳繃緔鍔犲櫒錛圓錛夌洿鎺ュ弽棣堝埌ALU鐨勮緭鍏ョ銆

CMOS鍙嶇浉鍣ㄧ殑鍔熻兘鏄鍙浠ヤ嬌杈撳嚭鑾峰緱璺熻緭鍏ョ浉鍙嶇殑閫昏緫鍊礆紝濡傛灉鎶婁袱涓鍙嶇浉鍣ㄧ殑杈撳叆璺熻緭鍑鴻繛鎺ュ湪涓璧鳳紝濡備笅鍥撅細

鍋囪炬煇涓鏃跺埢鍙嶇浉鍣ˋ鐨勮緭鍏ユ槸1錛岄偅鍏惰緭鍑轟負0錛汚鐨勮緭鍑鴻繛鎺ュ埌B鐨勮緭鍏ワ紝鍗沖弽鐩稿櫒B鐨勮緭鍏ヤ負0錛岄偅鍏惰緭鍑轟負1錛涜孊鐨勮緭鍑鴻繛鎺ュ埌A鐨勮緭鍏ョ錛屽嵆B杈撳嚭鐨1鍙嶉堝洖A鐨勮緭鍏ワ紝瀵瑰垰鎵嶅亣璁劇殑鈥淎鐨勮緭鍏ヤ負1鈥濊繘琛屼簡紜璁ゅ拰鍔犲己銆傛ゆ椂A鐨勮緭鍏ョ『瀹炰負1錛屾寜A鍜孊鐨勮緭鍏ヨ緭鍑鴻繛鎺ュ叧緋伙紝鍙堣蛋浜嗕竴閬嶅垰鎵嶇殑璺紼嬶紝濡傛ゅ驚鐜錛岀粨鏋滄槸鍙嶇浉鍣ˋ鐨勮緭鍑虹ǔ瀹氫負0錛屽弽鐩稿櫒B鐨勮緭鍑虹ǔ瀹氫負1銆傝繖涓緇撴瀯鐨勭數璺鏈変袱涓紼沖畾鐨勭姸鎬侊紝涓鑸縐頒箣涓哄弻紼蟲佺數璺銆傚彲瑙佺被浼肩殑鍙岀ǔ鎬佺數璺鍙浠ョǔ瀹氬湴淇濇寔鍏惰妭鐐逛腑鐨勫礆紙鏁版嵁錛夛紝鍏鋒湁璁板繂鍔熻兘錛岃繖灝辨槸閿佸瓨鍣ㄥ伐浣滅殑鍘熺悊銆

鐢變笂鍙寰楋紝棣栧熬鐩告帴鐨勪袱涓鍙嶇浉鍣ㄦ瀯鎴愪簡浜掔浉鍙嶉堣﹀悎鐨勫艦鎬侊紝榪欏氨鏄閿佸瓨鍣ㄧ殑鍩烘湰鐢佃礬緇撴瀯銆備絾榪欓噷鏄鍩轟簬涓涓鍋囪撅紝鍋囪懼弽鐩稿櫒A鐨勮緭鍏ヤ負1錛岄偅涔堝畠鐨勮緭鍑轟負0錛屼袱涓鍙嶇浉鍣ㄨ繛鍦ㄤ竴璧烽氳繃浜掔浉鍙嶉堝姞寮猴紝鍒欒兘淇濇寔0鍜1涓や釜鍊箋傚傛灉娌℃湁榪欎釜鍋囪撅紝瀹冭兘淇濆瓨鐨勫煎皢鏄涓嶇『瀹氱殑銆傝繖綾諱技浜庘滈浮鐢熻泲榪樻槸錏嬬敓楦♀濈殑璋滃矓錛岃佸皢姝ょ數璺褰撻攣瀛樺櫒浣跨敤錛屽氨蹇呴』鎵撶牬榪欎釜鈥滄槸杈撳叆鍏堟湁0錛岃繕鏄杈撳嚭鍏堝弽棣堝洖1鈥濈殑鍍靛矓銆備簬鏄緇欏畠鍔犱簡涓や釜杈撳叆絝錛岀敱浜庡弽鐩稿櫒鍙鏈1涓杈撳叆錛屽洜姝ゆ敼鐢ㄦ垨闈為棬鏉ヤ唬鏇褲傜數璺緇撴瀯濡備笅鍥撅紝鏍規嵁鎴栭潪闂ㄢ滃彧瑕佹湁涓涓杈撳叆涓1錛屽叾杈撳嚭灝變負0鈥濈殑鐗規э紝褰揜涓1鏃訛紝鉶界劧鏈夊弽棣堝瓨鍦錛屼篃鍙浠ュ己鍒惰緭鍑篞=0錛涘綋S涓1鏃訛紝鍒欏己鍒惰緭鍑篞=1銆傝繖灝辨槸R-S閿佸瓨鍣錛孯鎰忎負Reset錛屾竻闆剁殑鎰忔濓紱S鎰忎負Set錛岀疆1鐨勬剰鎬濄

R-S閿佸瓨鍣ㄧ殑緇撴瀯鏄鏈鍩烘湰鐨勯攣瀛樼粨鏋勶紝瀹為檯搴旂敤涓涓鑸浼氳繘琛屽悇縐嶆敼閫犲拰鎵╁睍錛岃嚦灝戜細鍔犱竴涓杈撳叆絝浣滀負鎺у埗淇″彿錛岃ヤ俊鍙鋒湁鏁堟椂錛岄攣瀛樺櫒鑳芥寔緇鍦拌緭鍏ャ佽緭鍑烘暟鎹銆傚叾鎺у埗淇″彿涓鑸涓洪珮鐢靛鉤錛屽洜姝ら攣瀛樺櫒鏄涓縐嶅硅剦鍐茬數騫蟲晱鎰熺殑瀛樺偍鍗曞厓鐢佃礬錛屽彲浠ュ湪鐗瑰畾杈撳叆鑴夊啿鐢靛鉤浣滅敤涓嬫敼鍙樼姸鎬併傞攣瀛樺櫒鐨勬渶涓昏佷綔鐢ㄦ槸緙撳瓨錛岄櫎浜嗙壒孌婄敤閫斿傚紓姝ョ數璺鎴栧緢綆鍗曠殑閫昏緫錛屽叾浠栧満鍚堝凡緇忓緢灝戠洿鎺ュ簲鐢ㄩ攣瀛樺櫒錛屽洜涓哄叾緇撴瀯綆鍗曡屼笖瀵圭數騫蟲晱鎰燂紝涓嶉傚悎鍦ㄤ富嫻佺殑瀵規椂閽熸晱鎰熺殑闆嗘垚鐢佃礬涓搴旂敤銆備竴鑸閮芥槸浣跨敤浠ラ攣瀛樺櫒涓哄熀紜鐨勮Е鍙戝櫒鎴栧瘎瀛樺櫒銆

鎵璋撻攣瀛樺櫒錛屽氨鏄杈撳嚭絝鐨勭姸鎬佷笉浼氶殢杈撳叆絝鐨勭姸鎬佸彉鍖栬屽彉鍖栵紝浠呭湪鏈夐攣瀛樹俊鍙鋒椂杈撳叆鐨勭姸鎬佹墠琚淇濆瓨鍒拌緭鍑猴紝鐩村埌涓嬩竴涓閿佸瓨淇″彿鍒版潵鏃舵墠鏀瑰彉銆

閿佸瓨鍣ㄥ氱敤浜庨泦鎴愮數璺涓錛屽湪鏁板瓧鐢佃礬涓浣滀負鏃跺簭鐢佃礬鐨勫瓨鍌ㄥ厓浠訛紝鍦ㄦ煇浜涜繍綆楀櫒鐢佃礬涓鏈夋椂閲囩敤閿佸瓨鍣ㄤ綔涓烘暟鎹鏆傚瓨鍣ㄣ

灝佽呬負鐙絝嬬殑浜у搧鍚庝篃鍙浠ュ崟鐙搴旂敤錛屾暟鎹鏈夋晥寤惰繜浜庢椂閽熶俊鍙鋒湁鏁堛傝繖鎰忓懗鐫鏃墮挓淇″彿鍏堝埌錛屾暟鎹淇″彿鍚庡埌銆

鍦ㄦ煇浜涘簲鐢ㄤ腑錛屽崟鐗囨満鐨処/O 鍙ｄ笂闇瑕佸栨帴閿佸瓨鍣ㄣ備緥濡傦紝褰撳崟鐗囨満榪炴帴鐗囧栧瓨鍌ㄥ櫒鏃訛紝瑕佹帴涓婇攣瀛樺櫒錛岃繖鏄涓轟簡瀹炵幇鍦板潃鐨勫嶇敤銆傚亣璁撅紝MCU絝鍙ｅ叾涓鐨 8 璺鐨 I/O 綆¤剼鏃㈣佺敤浜庡湴鍧淇″彿鍙堣佺敤浜庢暟鎹淇″彿錛岃繖鏃跺氨鍙浠ョ敤閿佸瓨鍣ㄥ厛灝嗗湴鍧閿佸瓨璧鋒潵銆

8051璁塊棶澶栭儴瀛樺偍鍣ㄦ椂P0鍙ｅ拰P2鍙ｅ叡鍚屽仛涓哄湴鍧鎬葷嚎錛孭0鍙ｅ父鎺ラ攣瀛樺櫒鍐嶆帴瀛樺偍鍣ㄣ備互闃叉㈡葷嚎闂寸殑鍐茬獊銆傝孭2鍙ｇ洿鎺ユ帴瀛樺偍鍣ㄣ傚洜涓哄崟鐗囨満鍐呴儴鏃跺簭鍙鑳介攣浣廝2鍙ｇ殑鍦板潃錛屽傛灉鐢≒0鍙ｄ紶杈撴暟鎹鏃朵笉鐢ㄩ攣瀛樺櫒鐨勮瘽錛屽湴鍧灝辨敼鍙樹簡銆

鐪嬬湅8051鍗曠墖鏈烘葷嚎鎿嶄綔鐨勬椂搴忓浘瀵規垜浠寰堟湁甯鍔┿傜敱浜庢暟鎹鎬葷嚎銆佸湴鍧鎬葷嚎鍏辯敤P0鍙ｏ紝鎵浠ヨ佸垎鏃跺嶇敤銆傚厛閫佸湴鍧淇℃伅錛岀敱ALE浣胯兘閿佸瓨鍣ㄥ皢鍦板潃淇℃伅閿佸瓨鍦ㄥ栬劇殑鍦板潃絝錛岀劧鍚庨佹暟鎹淇℃伅鍜岃誨啓浣胯兘淇″彿錛屽湪鎸囧畾鐨勫湴鍧榪涜岃誨啓鎿嶄綔銆

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