A80386DX16

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The Intel 80386DX16 is a 32-bit microprocessor with a 16-bit external memory bus and has a long term impact on the embedded industry. It features an on-chip Memory Management Unit (MMU) making it one of the most efficient embedded processor of the time. This MMU allows a system to use more than the 4GB maximum memory address space available in earlier versions of microprocessors.

One of the main applications fields of the Intel 80386DX16 was home automation systems. These systems often utilized a combination of digital input, digital output and other control processes. The 80386DX16 allowed for more efficient control of devices because it could directly address different system devices. This avoided the need for additional external components to handle device control.

Another application field of the 80386DX16 was industrial automation systems. It had an extreme level of computing power and its on-chip MMU contributed to a very efficient approach to process control. Its large addressable space allowed for more efficient control and simplification of processes such as process control, robotics programming and safety monitoring.

The 80386DX16 has a working principle based on a CISC (Complex Instruction Set Computer) architecture. This enabled the processor to perform complex operations with a single instruction. The instruction set of the 80386DX16 also included a large number of memory and Input/Output (I/O) instructions that allowed for easier communication between the processor and the system peripherals.

The CISC architecture of the 80386DX16 also featured several optimizations and many high-level language extensions, making it a great choice for embedded programming. This allowed developers to create efficient and cost-effective programs for the processor. It also allowed the processor to maximize code space utilization which was an important factor in devices that had a constrained amount of memory.

The 80386DX16 also integrated specialized instructions for digital signal processing, making it an ideal choice for embedded systems. These instructions allowed the processor to handle large amounts of data in real-time, making it the ideal processor for multimedia applications.

In summary, the Intel 80386DX16 processor is an ideal choice for embedded systems because of its low computing power requirements, its ability to directly address system devices, its optimized instruction set and its specialized instructions for digital signal processing. Its features helped revolutionize the embedded industry in the early nineties.

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