Short

Short

Short errors occur when a leak is detected. There are 2 types of leak errors.

• All leaks between nets defined as 'power' are reported.
• Leaks between other nets are only reported if the calculated leak current exceeds the CVC_LEAK_LIMIT set in the cvcrc file.

Common circuits that generate leak errors:

• Power detection circuits:
  Power detection often involves circuits that have a small leak current.

1. Check the sim levels of the output signals to verify correct operation.
   The output of power detection circuit is often calculated incorrectly, resulting in many false errors.
   Add internal power settings to ensure that detection circuit output levels are correct.
2. If the output levels are correct and the leaks detected have sufficiently low leak current, set the error level to 'ignore'.

電源感知回路

抵抗値の小さい方のパスが本来の値になるが、CVCはディレーを考慮して先に計算した値をノードの値とする。

この為、power設定で本来のパスの値を指定する。