查看“︁激發表”︁的源代码

{{cleanup-jargon|time=2016-06-11T15:38:31+00:00}}
{{NoteTA
|G1=Electronics
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在[[電子設計自動化|電子設計]]中，一個'''激發表'''會展示出在已知的現有輸出下，產生出特定的下個狀態所需的最少輸入值。它跟[[真值表]]和[[狀態轉移表]]很相似，不過不同之處在於它將現有輸出與下個輸出狀態放在表格左邊，會產生這樣狀態的輸入則放在表格右邊。

==正反器激發表==
為了獲得[[正反器]]的激發表，我們需要列出Q(t)與Q(t+1)的所有情況（像是00,01,10,11），然後找出滿足這些情況的輸入。

===[[正反器#T.E8.A7.A6.E5.8F.91.E5.99.A8|T正反器]]===
{| class="wikitable" border="1"
! colspan="2" | 狀態
! colspan="1" | 輸入
|-
! Q(t) !! Q(t+1)
! T
|-
| 0 || 0
| 0
|-
| 0 || 1
| 1
|-
| 1|| 0
| 1
|-
| 1 || 1
| 0
|}
T正反器的特徵方程是<math>Q(\text{next}) = TQ' + T'Q = T \oplus Q</math>。

===[[正反器#RS.E8.A7.A6.E5.8F.91.E5.99.A8|SR正反器]]===
("X"代表"{{link-en|皆可|Don't-care term}}")
{| class="wikitable" border="1"
! colspan="2" | 狀態
! colspan="2" | 輸入
|-
! Q(t) !! Q(t+1)
! S !! R
|-
| 0 || 0
| 0 || X
|-
| 0 || 1
| 1 || 0
|-
| 1 || 0
| 0 || 1
|-
| 1 || 1
| X || 0
|}
SR正反器的特徵方程是<math>Q(\text{next}) = S + QR'</math>。

===[[正反器#JK.E8.A7.A6.E5.8F.91.E5.99.A8|JK正反器]]===
("X"代表"{{link-en|皆可|Don't-care term}}")
{| class="wikitable" border="1"
! colspan="2" | 狀態
! colspan="2" | 輸入
|-
! Q(t) !! Q(t+1)
! J !! K
|-
| 0 || 0
| 0 || X
|-
| 0 || 1
| 1 || X
|-
| 1 || 0
| X || 1
|-
| 1 || 1
| X || 0
|}
JK正反器的特徵方程是<math>Q(\text{next}) = JQ' + K'Q</math>.

===[[正反器#D.E8.A7.A6.E5.8F.91.E5.99.A8|D正反器]]===
{| class="wikitable" border="1"
! colspan="2" | 狀態
! colspan="1" | 輸入
|-
! Q(t) !! Q(t+1)
! D
|-
| 0 || 0
| 0
|-
| 0 || 1
| 1
|-
| 1 || 0
| 0
|-
| 1 || 1
| 1
|}
D正反器的特徵方程是<math>Q(\text{next}) = D</math>。

==參考條目==
*[http://www.cs.umd.edu/class/spring2003/cmsc311/Notes/Seq/excite.html umd.edu's explanation] {{Wayback|url=http://www.cs.umd.edu/class/spring2003/cmsc311/Notes/Seq/excite.html |date=20160303221116 }} －激發表的一種解釋
*[https://web.archive.org/web/20120205182048/http://www.olemiss.edu/courses/EE/ELE_335/Spring2000/Htmlnotes/DesignI/tsld002.htm olemiss.edu's definition]
*[http://www.eelab.usyd.edu.au/digital_tutorial/part3/fl-types.htm Types of Flip-flop Behaviour] {{Wayback|url=http://www.eelab.usyd.edu.au/digital_tutorial/part3/fl-types.htm |date=20110510010819 }}

[[Category:電子設計]]