Centralized processing of touch information obtained by multiple touch sensing controllers connected to a touch sensing surface is provided. Each touch controller can obtain touch information of sense signals from different sense lines of the touch sensing surface and can store the touch information in a corresponding memory of the controller. The touch information of one or more of the touch sensing controllers can be transmitted as results data to a processor that processes all of the touch information. In some cases, prior to transfer of the results data, a determination of the validity of a sense channel can be made, and invalid channels can be excluded from the transfer.