10 Facts About 8051

One feature of the 8051 core is the inclusion of a boolean processing engine, which allows bit-level boolean logic operations to be carried out directly and efficiently on select internal registers, ports and select RAM locations.

The original 8051 core ran at 12 clock cycles per machine cycle, with most instructions executing in one or two machine cycles.

In some engineering schools, the 8051 microcontroller is used in introductory microcontroller courses.

Some 8051 compilers make provisions to automatically access paged code.

Some 8051 compilers make provisions to automatically access paged data.

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Only register on an 8051 that is not memory-mapped is the 16-bit program counter .

Microarchitecture of the Intel MCS8051 is proprietary, but published features suggest how it works.

One of the reasons for the 8051's popularity is its range of operations on single bits.

The original Intel 8051 ran at 12 clock cycles per machine cycle, and most instructions executed in one or two machine cycles.

Unlike their 8051 MCS-151 is a pipelined CPU, with 16-bit internal code bus and is 6x the speed.