8255a在工作方式1下的工作过程 8255A工作原理
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绛旓細8255A鏈変笁绉嶅伐浣滄柟寮忥細鏂瑰紡0銆鏂瑰紡1鍜屾柟寮2銆(1)锛氭柟寮0鈥斺斿熀鏈緭鍏/杈撳嚭 鍦ㄦ宸ヤ綔鏂瑰紡涓锛屾瘡涓彛閮戒綔涓哄熀鏈殑杈撳叆杈撳嚭鍙o紝C鍙g殑楂4浣嶅拰浣4浣嶄互鍙夾鍙 鍜孊鍙i兘鍙嫭绔嬪湴璁剧疆涓鸿緭鍏ュ彛鍜岃緭鍑哄彛銆傚湪姝ゅ伐浣滄柟寮忎笅锛氳緭鍑虹殑鏁版嵁琚攣瀛橈紝鑰岃緭鍏ョ殑鏁版嵁涓嶈閿佸瓨銆(2)锛氭柟寮1鈥斺旈夐氳緭鍏/杈撳嚭 姝ゅ伐浣...
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