ABSTRACT
The microcontroller manufacturers continued development and created numerous 8051 – based versions. The new designs, which adopted the original 8051's instruction set, unlocked the power of sophisticated integral subsystems. The 83C552 microcontroller was equipped with an 8-input, 10-bit ADC. The microcontroller is capable of influencing the outside world by two 8-bit DACs with pulse width modulation. In principle, the power management of the 83C552 microcontroller is identical to the power saving modes implemented in the 8051 CMOS microcomputers. Again, the power management relies on two modes: Idle and Power Down. In an attempt to evaluate the situation shaded the blocks which can be partly or completely covered by the 8051 or 83C552 microcontrollers. It gives some insight into how the microcontroller meets the hardware requirements of this particular application. The Analog-to-digital converter interface of the 83C552 microcontroller consists of an 8-input analog multiplexer and a 10-bit ADC. In addition, two registers are used for interaction with the CPU.
