eloProg - Vers. 1.0
71
MULTIPLEXER
Logical MULTIPLEXER forwards the signal of the
inputs to the output according to the Sel selection.
If the SEL1÷SEL4 have only one bit set, the
selected
In n
is connected to the Output. If the SEL
inputs are:
- more than one = 1 (TRUE)
- none = 1 (TRUE)
the output is set to 0 (FALSE) independently from
the
In n
values.
Parameters
Number of inputs
: this is used to set between 2 and 4 inputs.
MEMORY OPERATORS
MEMORY operators can be used if you decide to save any data (TRUE or FALSE) from other
project components.
Status changes are performed according to the truth tables shown for each operator.
D FLIP FLOP (max number = 8)
The D FLIP FLOP operator saves the previously set
status on output Q according to the following truth
table.
Preset Clear
Ck
D
Q
1 0
X X 1
0 1
X X 0
1 1
X X 0
0 0
L X
Keep
memory
0 0
Rising
edge
1 1
0 0
Rising
edge
0 0
Parameters
Preset
: If selected enables output Q to be set to 1 (TRUE).
Clear
: If selected enables the saving process to be reset.
