涓�锛庡～绌洪锛?/p>
1
锛?/p>
8051
绯诲垪鍗曠墖鏈哄瓧闀挎槸
8
浣嶏紝鏈?/p>
40
鏍瑰紩鑴氥�傚綋绯荤粺鎵╁睍澶栭儴瀛樺偍鍣ㄦ垨
鎵╁睍
I/O
鍙ｆ椂锛?/p>
P0
鍙ｄ綔鍦板潃浣?/p>
8
浣嶅拰鏁版嵁浼犻�佹�荤嚎锛?/p>
P2
鍙ｄ綔鍦板潃鎬荤嚎楂?/p>
8
浣嶈緭鍑猴紝
P3
鍙ｇ殑鐩稿簲寮曡剼浼氳緭鍑烘帶鍒朵俊鍙枫�?/p>
2
锛庡綋
EA
涓轰綆鐢靛钩锛堟帴鍦帮級鏃讹紝
CPU
鍙墽琛?/p>
澶栭儴绋嬪簭瀛樺偍鍣ㄦ垨
ROM
涓殑
绋嬪簭銆?/p>
3
锛庢暟鎹寚閽?/p>
DPTR
鏈?/p>
16
浣嶏紝绋嬪簭璁℃暟鍣?/p>
PC
鏈?/p>
16
浣嶃�?/p>
4
锛庡湪
MCS-51
鍗曠墖鏈轰腑锛屼竴涓満鍣ㄥ懆鏈熷寘鎷?/p>
12
涓椂閽熷懆鏈熴�?/p>
5
锛?/p>
C51
缂栬瘧鍣ㄦ敮鎸佷笁绉嶅瓨鍌ㄦā寮忥紝鍏朵腑
SMALL
妯″紡榛樿鐨勫瓨鍌ㄧ被鍨嬩负
data
锛?
LARGE
妯″紡
榛樿鐨勫瓨鍌ㄧ被鍨嬩负
xdata
銆?/p>
6
锛庢浣?/p>
P1
鍙ｇ殑浣?/p>
4
浣嶈緭鍑?/p>
0
锛岄珮
4
浣嶄笉鍙橈紝搴旀墽琛屼竴鏉?/p>
ANL P1,#0F0H
鍛?/p>
浠ゃ�?/p>
7
锛?/p>
8051
鍗曠墖鏈哄浣嶅悗锛?/p>
PC = 0000H
銆?/p>
8
锛?/p>
74LS138
鏄叿鏈?/p>
3
涓緭鍏ョ殑璇戠爜鍣ㄨ姱鐗囷紝
鐢ㄥ叾杈撳嚭浣滅墖閫変俊鍙凤紝
鏈�澶氬彲鍦?/p>
8
鍧?
鑺墖涓�変腑鍏朵腑浠讳竴鍧椼�?/p>
9
锛?/p>
鍗曠墖鏈轰綅瀵诲潃鍖虹殑鍗曞厓鍦板潃鏄粠
20H
鍗曞厓鍒?/p>
2FH
鍗曞厓锛?/p>
鑻ユ煇浣嶅湴鍧�
鏄?/p>
12H
锛屽畠鎵�鍦ㄥ崟鍏冪殑鍦板潃搴旇鏄?/p>
22H
10
锛?/p>
MOV A
锛?/p>
30H
鎸囦护瀵逛簬婧愭搷浣滄暟鐨勫鍧�鏂瑰紡鏄?/p>
鐩存帴
瀵诲潃銆?/p>
11
锛庡湪
MCS-51
鍗曠墖鏈轰腑锛屽瘎瀛樺櫒闂存帴瀵诲潃鐢ㄥ埌鐨勫瘎瀛樺櫒鍙兘鏄�氱敤瀵勫瓨鍣?/p>
R0
銆?/p>
R1
鍜?/p>
DPTR
銆?/p>
12
锛?/p>
锛庣▼搴忕姸鎬佸瓧
PSW
涓殑
RS1
鍜?/p>
RS0
鐨勪綔鐢ㄦ槸
閫夋嫨宸ヤ綔瀵勫瓨鍣ㄧ粍
13
锛?/p>
8051
鍗曠墖鏈猴紝褰?/p>
CPU
鍝嶅簲鏌愪腑鏂姹傛椂锛屽皢浼氳嚜鍔ㄨ浆鍚戠浉搴旇瀹氬湴鍧�锛堝嵆涓柇鍏ュ彛鍦?/p>
鍧�锛夊幓鎵ц锛屽閮ㄤ腑鏂?/p>
0
鍏ュ彛鍦板潃涓猴細
0003 H
锛?/p>
T1
鍏ュ彛鍦板潃涓?/p>
0018 H
銆?/p>
14
锛庡彉閲忕殑鎸囬拡灏辨槸
鍙橀噺鐨勫湴鍧�
銆傚浜庡彉閲?/p>
a
锛屽鏋滃畠鎵�瀵瑰簲鐨勫唴瀛樺崟鍏冨湴鍧�涓?
2000H
锛屽畠鐨勬寚閽堟槸
2000H
銆?/p>
15.
鐗规畩鍔熻兘瀵勫瓨鍣ㄤ腑锛屽崟鍏冨湴鍧�锛?/p>
锛夌殑鐗规畩鍔熻兘瀵勫瓨鍣紝鍙互浣嶅鍧�銆?/p>
16
锛?/p>
interrupt
m
鏄?/p>
C51
鍑芥暟涓潪甯搁噸瑕佺殑涓�涓慨楗扮锛岃繖鏄洜涓?/p>
涓柇
鍑芥暟蹇呴』閫氳繃
瀹冭繘琛屼慨楗般�?/p>
17
锛?/p>
Using n
鐢ㄤ簬鎸囧畾鏈嚱鏁板唴閮ㄤ娇鐢ㄧ殑
瀵勫瓨鍣ㄧ粍
锛?/p>
n
鐨勫彇鍊间负
0
锝?/p>
3
銆?/p>
18
锛庢秷闄ゆ寜閿洏鎶栧姩閫氬父鏈変袱绉嶆柟娉曪細
纭欢娑堟姈
鍜?/p>
杞欢娑堟姈
銆?/p>