The bit extender transforms a value into a value of another bit width.
If it's being transformed into a smaller bit width,
it is simply truncated to keep the lowest-order bits.
If it's being transformed into a large bit width,
the lowest-order bits are the same,
and you have a choice about what the additional high-order bits will be:
They can all be 0, all be 1, all match the input's
(its highest-order bit), or the component can have an additional one-bit
input that determines the identity of these other bits.
The multi-bit input whose value is to be transformed.
The computed output.
Specifies what the additional bits in the output should be.
This pin is available only when the Extension Type attribute is
When the component is selected or being added,
the digits 0 through 9 alter the
Bit Width In attribute
and Alt-0 through Alt-9 alter its
Bit Width Out attribute.
One,the additional bits are 0 or 1 accordingly. If
Sign,the additional bits are taken to match the highest-order bit in the input. And if
Input,the component has a second input on its north side whose one-bit value is used for the additional bits.
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