All, The current level of subckt/tstonefile terminal abstractions are: Pin_name (e.g. AE17) Model_name (e.g. DQ, DQS, DM, AddCmd) Scott requested an additional abstraction to enable IC Vendors to create package and on-die interconnect models to represent FEXT and NEXT coupling. The following additional abstraction for subckt/tstonefile terminals satisfies this requirement: Model_type (Input|Output|.) Walter Walter Katz <mailto:wkatz@xxxxxxxxxx> wkatz@xxxxxxxxxx Phone 303.449-2308 Mobile 303.335-6156