Re: ISE question on whats a "X_LUT3"?


"Duane Clark" <dclark@xxxxxxxxxxxx> wrote in message
news:LQ_if.34338$6e1.906@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Fred wrote:
>> Have a problem so tracing signals. What's a X_LUT3? A standard LUT3
>> only has an INIT value of 0 to 7. This is the "...translate.vhd" file
>> which has this primitive and an INIT value of x"EB".
>>
>> Q_n0024_0_1 : X_LUT3
>> generic map(
>> INIT => X"EB"
>> )
>> port map (
>> ADR0 => cycle(2),
>> ADR1 => cycle(0),
>> ADR2 => cycle(1),
>> O => Q_n0024(0)
>> );
>
> All of the X_* components are simprim primitives. You can find out what it
> is by looking at the file simprim_VITAL.vhd.

Many thanks.


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