%T Data\-Strobe Links and Virtual Channel Processors %A Barry M. Cook %E Andr\[`e] W. P. Bakkers %B Proceedings of WoTUG\-20: Parallel Programming and Java %X Data\-strobe links and message transfer protocols as used by the SGS\-Thomson T9000 processor are described, as are the essential characteristics of the supporting virtual channel processor. A method of providing the same functionality without the use of a T9000 is suggested and illustrated by a T225 processor design using a software virtual channel processor and minimal supporting hardware. Finally, differences between the international standard, IEEE 1355, and the T9000 links from which it was derived are described and the implications for virtual channel links highlighted.