ABSTRACT This application report describes a Windows CE .NET driver for the TSC2301, a Texas Instruments touch-screen/keypad controller, and a stereo audio codec device. Intel PXA250 and PXA210 microprocessors are used as master processors for interfacing with the TSC2301. The driver was built using the board support package (BSP) of Intel’s PCA development kit for the HCDDBCTA1/Cotulla development platform.