APPLICATION NOTE 3421

Interfacing 8051-based Microcontrollers to an SCI Port

By: Kevin Self

Abstract: This application note describes how to configure the UARTs of a High-Speed Microcontroller or Ultra-High-Speed Flash Microcontroller to communicate with an SCI-enabled device. It begins with a brief discussion of the differences between SCI and UART modules, and concludes with a practical example of how to configure an 8051-based Dallas Semiconductor microcontroller UART to communicate with an SCI module.