On the face of it, this is true. VHDL was designed to be and is a technology independent design language. However, there is less of a compliance issue between different simulators than there is for synthesis tools. Generally speaking, moving VHDL code from one simulator to another involves one or two minor changes to the VHDL. Two different synthesis tools may have broad agreement of what constitutes synthesizable code, but may interpret that code in different ways.
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Very often we come across questions from VLSI engineers that "Which scripting language should a VLSI engineer should learn?". Well... -
Up/down counter circuits are very useful devices. A common application is in machine motion control, where devices called rotary shaft encod...
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In a digital circuit, counters are used to do 3 main functions: timing, sequencing and counting. A timing problem might require that a high...
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Examining the four-bit binary count sequence, another predictive pattern can be seen. Notice that just before a bit toggles, all preceding b...
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We can build a counter circuit with selectable between "up" and "down" count modes by having dual lines of AND gates det...
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