涓�銆佸～绌洪
1
锛庡崄杩涘埗
255
鐨勪簩杩涘埗鏄?/p>
11111111
锛屽崄鍏繘鍒舵槸
FF
銆?/p>
2
锛庡崟鐗囨満鏄皢
CPU
銆佸瓨鍌ㄥ櫒銆佺壒娈婂姛鑳藉瘎瀛樺櫒銆佸畾鏃?/p>
/
璁℃暟鍣ㄥ拰杈?/p>
鍏?/p>
/
杈撳嚭鎺ュ彛鐢佃矾銆佷互鍙婄浉浜掕繛鎺ョ殑鎬荤嚎绛夐泦鎴愬湪涓�鍧楄姱鐗囦笂銆?/p>
3
锛?/p>
AT89S51
鍗曠墖鏈哄叡鏈?/p>
4
涓?/p>
8
浣嶇殑骞惰
I/O
鍙ｏ紝鍏朵腑鏃㈠彲鐢ㄤ綔鍦板潃
/
鏁版嵁鍙ｏ紝鍙堝彲鐢ㄤ綔涓�鑸殑
I/O
鍙ｇ殑鏄?/p>
P0
銆?/p>
4
锛庤嫢閲囩敤
12MHz
鐨勬櫠鎸紝鍒?/p>
MCS-51
鍗曠墖鏈虹殑鎸崱鍛ㄦ湡涓?/p>
1/12
渭
S
锛?/p>
鏈哄櫒鍛ㄦ湡涓?/p>
1
渭
S
銆?/p>
5
銆?/p>
AT89S51
鍗曠墖鏈哄瓧闀挎槸
8
浣嶏紝鏈?/p>
40
鏍瑰紩鑴氥�?/p>
6
锛?/p>
89S51
鍗曠墖鏈烘槸
8
浣嶅崟鐗囨満锛屽叾
PC
璁℃暟鍣ㄦ槸
16
浣嶃�?/p>
7
锛庤嫢鍗曠墖鏈轰娇鐢ㄧ殑鏅舵尟棰戠巼鏄?/p>
6MHz,
閭ｄ箞涓�涓尟鑽″懆鏈熸槸
1/6
碌
S
锛?/p>
涓�涓満鍣ㄥ懆鏈熸槸
2
渭
S
銆?/p>
8
锛?/p>
89S51
鍗曠墖鏈烘槸
+5V
渚涚數鐨勩�?/p>
9
锛庡爢鏍堟槸鍐呴儴鏁版嵁
RAM
鍖轰腑锛屾暟鎹寜鍏堣繘鍚庡嚭鐨勫師鍒欏嚭鍏ユ爤鐨勩�?/p>
10
锛?/p>
MSC
锛?/p>
51
绯诲垪鍗曠墖鏈哄叿鏈?/p>
4
涓苟琛岃緭鍏?/p>
/
杈撳嚭绔彛锛屽叾涓?/p>
P0
鍙?/p>
鏄竴涓袱鐢ㄦ帴鍙ｏ紝瀹冨彲鍒嗘椂杈撳嚭澶栭儴瀛樺偍鍣ㄧ殑浣庡叓浣嶅湴鍧�鍜屼紶閫佹暟
鎹紝鑰?/p>
P1
鍙ｆ槸涓�涓笓渚涚敤鎴蜂娇鐢ㄧ殑
I
锛?/p>
O
鍙ｏ紝甯哥敤浜庣浜屽姛鑳界殑鏄?/p>
P3
鍙ｃ�?/p>
11
锛庡綋鍗曠墖鏈虹郴缁熻繘琛屽瓨鍌ㄥ櫒鎵╁睍鏃讹紝鐢?/p>
P2
鍙ｇ殑浣滀负鍦板潃鎬荤嚎鐨勯珮
鍏綅锛岀敤
P0
浣滀负鍦板潃鎬荤嚎鐨勪綆鍏綅銆?/p>
12
锛庡崐瀵间綋瀛樺偍鍣ㄥ垎涓?/p>
ROM
鍜?/p>
RAM
涓ゅぇ绫伙紝鍏朵腑鍓嶈�呭叿鏈夐潪鏄撳け鎬?/p>
锛堝嵆鎺夌數鍚庝粛鑳戒繚瀛樹俊鎭級锛屽洜鑰屼竴鑸敤鏉ュ瓨鏀剧郴缁熺▼搴忥紝鑰屽悗鑰?/p>
鍏锋湁鏄撳け鎬э紝鍥犺�屼竴鑸敤鏉ュ瓨鏀剧粡甯稿彉鍔ㄧ殑鐢ㄦ埛绋嬪簭涓棿缁撴灉绛夈�?/p>
13.
褰撳崟鐗囨満绯荤粺闇�瑕佸鎵╁睍瀛樺偍鍣ㄦ椂锛?/p>
P2
鍜?/p>
P0
浣滀负鍦板潃鎬荤嚎銆?/p>
14.AT89S51
鍗曠墖鏈轰笂鐢靛垵濮嬪寲鍚庯紝灏嗚嚜鍔ㄨ缃竴浜涘瘎瀛樺櫒鐨勫垵濮嬪�硷紝
鍏朵腑鍫嗘爤鎸囬拡
SP
鐨勫垵濮嬪�间负
07H
锛?/p>
P0
鍙ｅ浣嶅�兼槸
FFH
銆?/p>
15.
鍗曠墖鏈轰袱绉嶈妭鐢垫ā寮忥細绌洪棽妯″紡鍜屾帀鐢垫ā寮忥紝鑺傜數妯″紡鏄敱鐗规畩
鍔熻兘瀵勫瓨鍣?/p>
PCON
涓殑鏈夊叧浣嶆潵鎺у埗鐨勩�?/p>
16.
鍦?/p>
AT89S51
鍗曠墖鏈轰腑锛?/p>
RAM
鏄暟鎹瓨鍌ㄥ櫒锛?/p>
ROM
涓虹▼搴忓瓨鍌ㄥ櫒銆?/p>