Patent ID: 7895555

Claim:
A computer-implemented method of estimating simultaneous switching output (SSO) noise received by an input/output (I/O) pin of an electronic device, the method comprising: identifying by a computer a victim I/O pin of the device; selecting by the computer other I/O pins of the device that generate SSO noise received by the victim pin; obtaining by the computer SSO noise curves for types of I/O signals assignable to the selected I/O pins; for each selected I/O pin: identifying from the SSO noise curves which type of I/O signal assignable to the I/O pin produces the most SSO noise received by the victim pin; and assigning an I/O signal of the identified type to the I/O pin; and summing by the computer the SSO noise of the assigned I/O signals to provide an estimate of the SSO noise received by the victim pin.