POWER CORE User Manual
Version: V6.0.0/5
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18. Configuring Custom Logical Behaviour
18.16 Logic -> MOM LAT (Momentary Latch)
A MOM LAT element can be used to create a key that latches on (when you press quickly) or is momentary
(when you press and hold). For example, to operate talkback.
General Parameters
MOM LAT
Reference name for the element.
Toggle
Assign the control signal which you wish to modify (in our example, a talkback key).
Reset Static
This input will force a reset (i.e. set the control output to “0”). The reset is active as long as
the input control signal = logical “1”.
Set Static
As above, but this time the control output is set to “1”.
Reset Pos Edge
This input will force a reset (i.e. set the control output to “0”). The reset is triggered from
the rising edge of the input control signal.
Set Pos Edge
As above, but this time the control output is set to “1”.
Delay Time (1/10)
Enter the time between which the function will change from ‘short press’ to ‘long press’. In
our example, 10 is entered: pressing the TB key for more than 1 second will action a long
press and for less than one second a short press.
The control outputs appear under the “Logic -> <GroupName> -> MOM LAT” branch of the 'Tree Selection'
window:
Out
The control output (latching after a short press and momentary after a long press).
nOut
The negated
Out
.
OutShort TFF
Active when the
Toggle
input control signal is shorter than the
Delay Time
. It becomes
inactive the next time the
Toggle
input control signal is shorter than the
Delay Time
.
OutLong
Active when the
Toggle
input control signal is longer than the
Delay Time
. It becomes
inactive when the
Toggle
input control signal becomes active.
OutShort Pulse
This output is pulsed when the
Toggle
input control signal is active below the
Delay Time
.
To programme a
Talkback
key so that you press and hold to momentarily talk to a destination, use the
OutLong
control output to trigger the talkback function.