Материал: 8laboratornaya_данные_удалены
Таблица 1.2 – Таблица функционирования
Задача №4
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Входы |
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Выходы |
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D5 |
D4 |
D3 |
D2 |
D1 |
D0 |
Q4 |
Q3 |
Q2 |
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Q1 |
Q0 |
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X |
X |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
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1 |
0 |
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X |
X |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
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0 |
1 |
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X |
X |
0 |
0 |
1 |
0 |
1 |
0 |
1 |
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0 |
0 |
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X |
X |
0 |
0 |
1 |
1 |
1 |
0 |
1 |
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0 |
1 |
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X |
X |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
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1 |
0 |
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X |
X |
0 |
1 |
0 |
1 |
0 |
1 |
0 |
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1 |
1 |
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X |
X |
0 |
1 |
1 |
0 |
0 |
1 |
1 |
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1 |
0 |
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X |
X |
0 |
1 |
1 |
1 |
0 |
1 |
1 |
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1 |
1 |
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X |
X |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
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1 |
0 |
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X |
X |
1 |
0 |
0 |
1 |
1 |
0 |
0 |
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1 |
1 |
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X |
X |
1 |
0 |
1 |
0 |
1 |
0 |
1 |
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1 |
0 |
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X |
X |
1 |
0 |
1 |
1 |
1 |
0 |
1 |
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1 |
1 |
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X |
X |
1 |
1 |
0 |
0 |
1 |
1 |
0 |
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1 |
0 |
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X |
X |
1 |
1 |
0 |
1 |
1 |
1 |
0 |
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1 |
1 |
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X |
X |
1 |
1 |
1 |
0 |
1 |
1 |
1 |
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0 |
0 |
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X |
X |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
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0 |
1 |
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Далее, в таблице 1.3, представлены значения всех входов и выходов для
вычислительного блока, при выполнении логической побитовой операции.
6
Таблица 1.3 – Таблица функционирования
А B
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Входы |
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Выходы |
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D5 |
D4 |
D3 |
D2 |
D1 |
D0 |
Q4 |
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Q3 |
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Q2 |
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Q1 |
Q0 |
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X |
X |
X |
0 |
0 |
0 |
1 |
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1 |
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1 |
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- |
- |
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X |
X |
a0 |
0 |
0 |
1 |
1 |
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1 |
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a0 |
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- |
- |
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X |
a1 |
X |
0 |
1 |
0 |
1 |
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a1 |
1 |
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- |
- |
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X |
a3 |
a2 |
0 |
1 |
1 |
1 |
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a3 |
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a2 |
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- |
- |
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a4 |
X |
X |
1 |
0 |
0 |
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a4 |
1 |
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1 |
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- |
- |
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a6 |
X |
a5 |
1 |
0 |
1 |
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a6 |
1 |
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a5 |
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- |
- |
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a8 |
a7 |
X |
1 |
1 |
0 |
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a8 |
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a7 |
1 |
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- |
- |
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a11 |
a10 |
a9 |
1 |
1 |
1 |
a11 |
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a10 |
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a9 |
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- |
- |
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0 |
0 |
0 |
b2 |
b1 |
b0 |
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- |
- |
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b2 |
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b1 |
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b0 |
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0 |
0 |
1 |
b4 |
b3 |
X |
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1 |
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- |
- |
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b4 |
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b3 |
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0 |
1 |
0 |
b6 |
X |
b5 |
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1 |
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- |
- |
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b6 |
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b5 |
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0 |
1 |
1 |
b7 |
X |
X |
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1 |
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1 |
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- |
- |
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b7 |
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1 |
0 |
0 |
X |
b9 |
b8 |
1 |
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- |
- |
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b9 |
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b8 |
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1 |
0 |
1 |
X |
b10 |
X |
1 |
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1 |
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- |
- |
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b10 |
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1 |
1 |
0 |
X |
X |
b11 |
1 |
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1 |
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- |
- |
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b11 |
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1 |
1 |
1 |
X |
X |
X |
1 |
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1 |
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1 |
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- |
- |
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В таблице 1.4 представлен полный перебор сигналов и соответствующего выхода для вычислительного блока, при выполнении арифметической операции сложения.
7
Таблица 1.4 – Таблица функционирования
A + B
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Входы |
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Выходы |
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D5 |
D4 |
D3 |
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D2 |
D1 |
D0 |
Q4 |
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Q3 |
Q2 |
Q1 |
Q0 |
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0 |
0 |
0 |
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0 |
0 |
0 |
0 |
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0 |
0 |
0 |
- |
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0 |
0 |
0 |
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0 |
0 |
1 |
0 |
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0 |
0 |
1 |
- |
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0 |
0 |
0 |
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0 |
1 |
0 |
0 |
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0 |
1 |
0 |
- |
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0 |
0 |
0 |
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0 |
1 |
1 |
0 |
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0 |
1 |
1 |
- |
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0 |
0 |
0 |
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1 |
0 |
0 |
0 |
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1 |
0 |
0 |
- |
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0 |
0 |
0 |
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1 |
0 |
1 |
0 |
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1 |
0 |
1 |
- |
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0 |
0 |
0 |
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1 |
1 |
0 |
0 |
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1 |
1 |
0 |
- |
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0 |
0 |
0 |
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1 |
1 |
1 |
0 |
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1 |
1 |
1 |
- |
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0 |
0 |
1 |
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0 |
0 |
0 |
0 |
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0 |
0 |
1 |
- |
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0 |
0 |
1 |
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0 |
0 |
1 |
0 |
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0 |
1 |
0 |
- |
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0 |
0 |
1 |
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0 |
1 |
0 |
0 |
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0 |
1 |
1 |
- |
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0 |
0 |
1 |
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0 |
1 |
1 |
0 |
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1 |
0 |
0 |
- |
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0 |
0 |
1 |
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1 |
0 |
0 |
0 |
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1 |
0 |
1 |
- |
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0 |
0 |
1 |
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1 |
0 |
1 |
0 |
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1 |
1 |
0 |
- |
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0 |
0 |
1 |
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1 |
1 |
0 |
0 |
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1 |
1 |
1 |
- |
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0 |
0 |
1 |
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1 |
1 |
1 |
1 |
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0 |
0 |
0 |
- |
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0 |
1 |
0 |
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0 |
0 |
0 |
0 |
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0 |
1 |
0 |
- |
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0 |
1 |
0 |
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0 |
0 |
1 |
0 |
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0 |
1 |
1 |
- |
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0 |
1 |
0 |
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0 |
1 |
0 |
0 |
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1 |
0 |
0 |
- |
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0 |
1 |
0 |
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0 |
1 |
1 |
0 |
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1 |
0 |
1 |
- |
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0 |
1 |
0 |
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1 |
0 |
0 |
0 |
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1 |
1 |
0 |
- |
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0 |
1 |
0 |
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1 |
0 |
1 |
0 |
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1 |
1 |
1 |
- |
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0 |
1 |
0 |
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1 |
1 |
0 |
1 |
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0 |
0 |
0 |
- |
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0 |
1 |
0 |
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1 |
1 |
1 |
1 |
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0 |
0 |
1 |
- |
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0 |
1 |
1 |
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0 |
0 |
0 |
0 |
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0 |
1 |
1 |
- |
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0 |
1 |
1 |
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0 |
0 |
1 |
0 |
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1 |
0 |
0 |
- |
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0 |
1 |
1 |
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0 |
1 |
0 |
0 |
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1 |
0 |
1 |
- |
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0 |
1 |
1 |
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0 |
1 |
1 |
0 |
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1 |
1 |
0 |
- |
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0 |
1 |
1 |
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1 |
0 |
0 |
0 |
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1 |
1 |
1 |
- |
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0 |
1 |
1 |
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1 |
0 |
1 |
1 |
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0 |
0 |
0 |
- |
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0 |
1 |
1 |
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1 |
1 |
0 |
1 |
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0 |
0 |
1 |
- |
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0 |
1 |
1 |
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1 |
1 |
1 |
1 |
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0 |
1 |
0 |
- |
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1 |
0 |
0 |
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0 |
0 |
0 |
0 |
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1 |
0 |
0 |
- |
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1 |
0 |
0 |
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0 |
0 |
1 |
0 |
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1 |
0 |
1 |
- |
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1 |
0 |
0 |
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0 |
1 |
0 |
0 |
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1 |
1 |
0 |
- |
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1 |
0 |
0 |
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0 |
1 |
1 |
0 |
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1 |
1 |
1 |
- |
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1 |
0 |
0 |
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1 |
0 |
0 |
1 |
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0 |
0 |
0 |
- |
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1 |
0 |
0 |
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1 |
0 |
1 |
1 |
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0 |
0 |
1 |
- |
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1 |
0 |
0 |
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1 |
1 |
0 |
1 |
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0 |
1 |
0 |
- |
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1 |
0 |
0 |
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1 |
1 |
1 |
1 |
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0 |
1 |
1 |
- |
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8
Продолжение таблицы 1.4
1 |
0 |
1 |
0 |
0 |
0 |
0 |
1 |
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9
1.3 ФУНКЦИОНАЛЬНАЯ СХЕМА
На рисунке 1.3.1 представлена полная функциональная схема
вычислительного блока, включающая в себя входную часть, выходную часть и
операционный блок для кодирования 4b5b-кода, логической побитовой операции
и арифметического сложения.
Рисунок 1.3.1 – Функциональная схема Далее, на рисунке 1.3.2 представлена подробно описанная входная часть.
Она состоит из записывающего регистра, на входы которого поданы данные (A, B) и код операции. На выходе этого регистра одна шина, которая после разделяется на две отдельные. Также во входную часть входит счетчик,
работающий задним фронтом. На счетчик подается сигнал внешнего синхроимпульса, а на выходе присутствует шина, которая в последствии будет использоваться в операционном блоке как код операции. Последнее устройство
– это регистр, который отвечает за синхронный сброс.
10