瀹?/p>
楠?/p>
涓�
杩?/p>
绠?/p>
鍣?/p>
瀹?/p>
楠?/p>
锛?/p>
涓�
锛?/p>
绠楁湳閫昏緫杩愮畻瀹為獙
涓�銆佸疄楠岀洰鐨?/p>
1
锛庢帉鎻＄畝鍗曡繍绠楀櫒鐨勬暟鎹紶閫侀�氳矾銆?/p>
2
锛庨獙璇佽繍绠楀姛鑳藉彂鐢熷櫒锛?/p>
74LS181
锛夌殑缁勫悎鍔熻兘銆?/p>
浜屻�佸疄楠屽師鐞?/p>
瀹為獙涓墍鐢ㄧ殑杩愮畻鍣ㄦ暟鎹�氳矾濡傚浘
1
鈥?/p>
1
鎵�绀恒�傚叾涓繍绠楀櫒鐢变袱鐗?/p>
74LS181
浠ュ苟
/
涓插舰寮?/p>
鏋勬垚
8
浣嶅瓧闀跨殑
ALU
銆傝繍绠楀櫒鐨勮緭鍑虹粡杩囦竴涓笁鎬侀棬锛?/p>
74LS245
锛夊拰鏁版嵁鎬荤嚎鐩歌繛锛岃繍绠楀櫒鐨?/p>
涓や釜鏁版嵁杈撳叆绔垎鍒敱涓や釜閿佸瓨鍣紙
74LS273
锛夐攣瀛橈紝閿佸瓨鍣ㄧ殑杈撳叆杩炶嚦鏁版嵁鎬荤嚎锛屾暟鎹紑鍏?/p>
锛?/p>
INPUT DEVICE
锛夌敤鏉ョ粰鍑哄弬涓庤繍绠楃殑鏁版嵁锛屽苟缁忚繃涓�涓夋�侀棬锛?/p>
74LS245
锛夊拰鏁版嵁鎬荤嚎鐩歌繛锛?/p>
鏁版嵁鏄剧ず鐏紙
BUS UNIT
锛夊凡鍜屾暟鎹�荤嚎鐩歌繛锛岀敤鏉ユ樉绀烘暟鎹�荤嚎鍐呭銆?/p>
鍥?/p>
1
鈥?/p>
1
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锛屽叾涓?/p>
闄?/p>
T
4
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W/R UNIT
鈥濈殑
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W/R UNIT
鈥濈殑
T
4
鎺ヨ嚦鈥?/p>
STATE UNIT
鈥?/p>
鐨勫井鍔ㄥ紑鍏?/p>
KK2
鐨勮緭鍑虹锛屾寜鍔ㄥ井鍔ㄥ紑鍏筹紝鍗冲彲鑾峰緱瀹為獙鎵�闇�鐨勫崟鑴夊啿锛?/p>
鑰?/p>
S
3
銆?/p>
銆?/p>
S
2
銆?/p>
S
1
銆?/p>
S
0
銆?/p>
銆?/p>
C
N
銆?/p>
銆?/p>
M
銆?/p>
LDDR
1
銆?/p>
LDDR
2
銆?/p>
ALU
鈥?/p>
B
銆?/p>
SW
鈥?/p>
B
鍚勭數骞虫帶鍒朵俊鍙风敤鈥?/p>
SWITCH UNIT
鈥濅腑鐨勪簩杩涘埗鏁版嵁
寮�鍏虫潵妯℃嫙锛屽叾涓?/p>
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銆?/p>
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ALU
鈥?/p>
B
銆?/p>
SW
鈥?/p>
B
涓轰綆鐢靛钩鏈夋晥锛?/p>
銆?/p>
LDDR
1
銆?/p>
LDDR
2
涓洪珮鐢靛钩鏈夋晥銆?/p>
涓夈�佸疄楠屼华鍣?/p>
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+
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鍥涖�佸疄楠屾楠?/p>
锛?/p>
1
锛?/p>
鎸夊浘
1
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2
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锛?/p>
2
锛?/p>
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DR1
鍜?/p>
DR2
瀵勫瓨鍣ㄧ疆鏁般�傚叿浣撴搷浣滄楠ゅ浘绀哄涓嬶細
ALU-B=1 LDDR1=1 LDDR1=0
SW-B=0 LDDR2=0 LDDR2=1
T4= T4=
妫�楠?/p>
DR1
鍜?/p>
DR2
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SW-B=1
锛?/p>
锛屾墦寮�
ALU
杈撳嚭涓夋�侀棬锛?/p>
ALU-B=0
锛?/p>
锛屽綋缃?/p>
S
3
銆?/p>
銆?/p>
S
2
銆?/p>
S
1
銆?/p>
S
0
銆?/p>
M
涓?/p>
11111
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DR1
涓殑
鏁版嵁寮�鍏?/p>
锛?/p>
01100101
锛?/p>
涓?/p>
鎬?/p>
闂?/p>
瀵勫瓨鍣?/p>
DR1
锛?/p>
01100101
锛?/p>
鏁版嵁寮�鍏?/p>
锛?/p>
10100111
锛?/p>
瀵勫瓨鍣?/p>
DR2
锛?/p>
10100111
锛?/p>