Peter Sirmon has resigned as the defensive coordinator of the Louisville football team, "effective immediately," the program announced Friday.

Sirmon spent one season as the Cardinals' defensive coordinator. His defense finished 62nd in the country in total defense, allowing 388.1 yards per game.

"I would like to thank Peter Sirmon for all his work this season at the University of Louisville," head coach Bobby Petrino said in a statement. "I wish him and his family all the best."

Later Friday afternoon, the University of California announced on Twitter that Sirmon will be the new associate head coach/inside linebackers coach in Berkeley, Calif.

Last January, Sirmon signed a three-year contract with Louisville worth a $950,000 base salary. That base salary tied for 17th in the country among FBS assistant coaches in USA TODAY's coaches salary database.