# VERILOG2120: A "pulsestyle" or "showcancelled" declaration should not target an output terminal that has previously been used in a timing path declaration ## Summary ```{raw} html
| Reliability | Security | Maintainability | Code attribute | Effort to fix | Tags |
|---|---|---|---|---|---|
| MEDIUM | - | - | Intentionality | Logical | 5min | synthesis, vscode, linter, simulation |
A pulsestyle or showcancelled declaration targets an output terminal that has previously
been used in a timing path declaration, which is not allowed according to the SystemVerilog standard.
module m(input a, output b);
specify
(a => b) = 1;
pulsestyle_ondetect b; // Noncompliant
endspecify
endmodule
```
## Parameters
No parameters.
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```