8085 and 8051 processor

[Indian]

why in 8085 microprocessor the internal clock freq is divided by 2 also the same divided by 12 in 8051

 

[puviarasu]

Hi its the architecture of the microcontroller or microprocessor which defines the external and internal clk frequency's in 8085 it is divided by 2 before feeding it to the internal logic but in 8051 its directly used in the internal logic each instruction takes 12 clock cycle to execute. As it takes different processors like loading storing and computing in various hidden registers which are used to finish a particular instruction.