[問題]請問一題邏電的問題~!

看板Electronics作者cbscloud (v想做的事快點完成)時間18年前 (2008/01/12 20:00)推噓3(3推 0噓 4→)

留言7則, 3人參與討論串1/1

就是小弟想請問這一題 Show how to make the 8-to-3 priority encoder using two 4-to-2 priority encoders and any additional necessary gates. 以下是課本給的答案 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 A1 B1 C1 A2 B2 C2 A B C D ____________________________________________________________ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 X 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 1 X X 1 0 0 0 0 0 1 0 1 0 0 0 0 1 0 1 X X X 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 X X X X 1 0 0 0 X X X 0 0 1 1 0 0 1 X X X X X 1 0 0 X X X 0 1 1 1 0 1 1 X X X X X X 1 0 X X X 1 0 1 1 1 0 1 X X X X X X X 1 X X X 1 1 1 1 1 1 1 ****小弟想請問一下以下的關係式是怎麼從真值表轉畫出來的??? A=C2 B=A1C2'+A2C2 C=B1C2'+B2C2 D=C1+C2 麻煩各位高手幫忙一下~! 謝謝~! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 125.224.209.184

推

NalrA

01/12 22:51, , 1^F

01/12 22:51, 1^F

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cbscloud

01/12 23:08, , 2^F

01/12 23:08, 2^F

推

NalrA

01/13 11:07, , 3^F

01/13 11:07, 3^F