Difference between revisions of "VHDL tutorial"
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! !! U !! X !! 0 !! 1 !! Z !! W !! L !! H !! - | ! !! U !! X !! 0 !! 1 !! Z !! W !! L !! H !! - | ||
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− | ! U | U || U || U || U || U || U || U || U || U | + | ! U |
+ | | U || U || U || U || U || U || U || U || U | ||
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− | ! X | U || X || X || X || X || X || X || X || X | + | ! X |
+ | | U || X || X || X || X || X || X || X || X | ||
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− | ! 0 | U || X || 0 || X || 0 || 0 || 0 || 0 || X | + | ! 0 |
+ | | U || X || 0 || X || 0 || 0 || 0 || 0 || X | ||
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− | ! 1 | U || X || X || 1 || 1 || 1 || 1 || 1 || X | + | ! 1 |
+ | | U || X || X || 1 || 1 || 1 || 1 || 1 || X | ||
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− | ! Z | U || X || 0 || 1 || Z || W || L || H || X | + | ! Z |
+ | | U || X || 0 || 1 || Z || W || L || H || X | ||
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− | ! W | U || X || 0 || 1 || W || W || W || W || X | + | ! W |
+ | | U || X || 0 || 1 || W || W || W || W || X | ||
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− | ! L | U || X || 0 || 1 || L || W || L || W || X | + | ! L |
+ | | U || X || 0 || 1 || L || W || L || W || X | ||
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− | ! H | U || X || 0 || 1 || H || W || W || H || X | + | ! H |
+ | | U || X || 0 || 1 || H || W || W || H || X | ||
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− | ! - | U || X || X || X || X || X || X || X || X | + | ! - |
+ | | U || X || X || X || X || X || X || X || X | ||
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Revision as of 19:43, 5 July 2007
To be added: a tutorial on VHDL design with a design example (likely the DAC emulator). Also to be included: the VHDL resolution table:
U | X | 0 | 1 | Z | W | L | H | - | |
---|---|---|---|---|---|---|---|---|---|
U | U | U | U | U | U | U | U | U | U |
X | U | X | X | X | X | X | X | X | X |
0 | U | X | 0 | X | 0 | 0 | 0 | 0 | X |
1 | U | X | X | 1 | 1 | 1 | 1 | 1 | X |
Z | U | X | 0 | 1 | Z | W | L | H | X |
W | U | X | 0 | 1 | W | W | W | W | X |
L | U | X | 0 | 1 | L | W | L | W | X |
H | U | X | 0 | 1 | H | W | W | H | X |
- | U | X | X | X | X | X | X | X | X |