Fast Memory Transfers with the Ultra High-Speed Flash Microcontroller

Abstract: The Dallas Semiconductor Ultra High-Speed Flash microcontroller features dual data pointers with auto increment/decrement and toggle select. This application note compares origingal 8051 architecture using one data pointer to the new architecture of the DS89C430 and DS89C450 and its improved efficiency in moving data. Numerous code examples are presented to help understand the use of the dual data pointers of this ultra high-speed microcontroller.