This application note explains how to program Atmel T89C51xx and AT89C51xx microcontrollers with device programmers that use this type of single buffer.
1 Programming T89C51xx and AT89C51xx with Device Programmers Overview Most of the new T89C51xx and AT89C51xx from Atmel have one, two, or three memory areas and configuration bytes while device programmers usually provide a single programming buffer.