Abstract: This application note explores the complexities of the Dallas Semiconductor DS80C390 and DS80C400 microcontrollers when used in applications requiring extended addressing beyond 64kB. The Keil Software C51 development tool can be configured to support the contiguous addressing mode of these microcontrollers. The application note examines customizing startup and initialization code using Keil uVision2 software. The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 606: Configuring Keil PK51 Tools to Support 24-Bit Contiguous Addressing Mode (PDF, 836kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html Related Parts   APP 606: Jun 20, 2002 DS5230 IP Security Microcontroller Abridged Data Sheet (PDF, 60kB) DS5250 High-Speed Secure Microcontroller Abridged Data Sheet (PDF, 60kB) DS80C390 Dual CAN High-Speed Microprocessor Full Data Sheet (PDF, 1.8MB) Free Samples DS80C400 Network Microcontroller Full Data Sheet (PDF, 1.8MB) Free Samples Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EE-Mail™. We Want Your Feedback!   Download, PDF Format (836kB)  AN606, AN 606, APP606, Appnote606, Appnote 606