2020-08-08 15:47:34 +02:00
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<h1>INSTANCE ATTRIBUTES, PARAMETRIZED SUBCIRCUITS</h1>
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<h3 style="text-align:left; max-width: 55%;margin-left:0;">
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<ul style="margin-left:0;">
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<li>A symbol may have any sort of parameters that can be specified when placing an instance of it in a schematic.</li>
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<li>Example: inverter with variable W/L dimensions for p and n transistors.</li>
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<li>Parameters enable circuit reuse (think of variable width registers, variable size RAMs, variable strength buffers).</li>
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<li>Symbol may show parameters using the @param notation, @param is then expanded with the actual 'param' value
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set as attribute in the component instance.</li>
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<li>Attributes may be used in multiple level hierarchies. No single-level restriction.</li>
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</ul>
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</h3>
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2021-10-13 17:33:10 +02:00
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<img src="tutorial_xschem_slides06.png" style="position:fixed; top:18%; right:2%;width:38%; max-width: 38%;">
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2020-08-08 15:47:34 +02:00
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