强度值(Strengths)
有强度的网络可以使模块更加精确。
语法
( strength0 [, strength1 ] ) | ( strength1 [, strength0 ] ) | cap_strength strength0 = highz0 | pull0 | strong0 | supply0 | weak0 strength1 = highz1 | pull1 | strong1 | supply1 | weak1 cap_strength = large | medium | small
强度表如下:
Strength level
Strength level | Name | Keyword |
---|---|---|
7 | Supply drive | supply0 , supply1 |
6 | Strong drive | strong0 , strong1 |
5 | Pull drive | pull0 , pull1 |
4 | Large capacitive | large |
3 | Weak drive | weak0 , weak1 |
2 | Medium capacitive | medium |
1 | Small capacitive | small |
0 | High impedance | highz0 , highz1 |
例程
and (strong1, weak0) u1 (Q, A, B); trireg (small) C1; assign (weak1, strong0) Q = A + B;