Oregon Revised Statutes Procedure in Criminal Matters Generally § 135.765

(a) When failure to bring the inmate to trial within 90 days after the district attorney receives notice under ORS 135.760 was the result of motions filed on behalf of the inmate, or of a grant by the court of a continuance on motion of the district attorney or on its own motion, for good cause shown; or

(b) When the inmate is unavailable for trial, other than by imprisonment, or because of other pending criminal proceedings against the inmate.