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Update CHAPTER_CellLib.rst
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@ -195,7 +195,7 @@ from ``\S`` is set the output is undefined. Cells of this type are used to model
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by an optimization).
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The ``$tribuf`` cell is used to implement tristate logic. Cells of this type
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have a ``\B`` parameter and inputs ``\A`` and ``\EN`` and an output ``\Y``. The
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have a ``\WIDTH`` parameter and inputs ``\A`` and ``\EN`` and an output ``\Y``. The
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``\A`` input and ``\Y`` output are ``\WIDTH`` bits wide, and the ``\EN`` input
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is one bit wide. When ``\EN`` is 0, the output is not driven. When ``\EN`` is 1,
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the value from ``\A`` input is sent to the ``\Y`` output. Therefore, the
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