| Simulink Reference | |
Delay a signal one sample period, if the external enable signal is on, with an external Boolean reset and initial condition
Library
Additional Math & Discrete / Additional Discrete
Description
The Unit Delay Enabled Resettable External IC block combines the features of the Unit Delay Enabled, Unit Delay External IC, and Unit Delay Resettable blocks.
The block can reset its state based on an external reset signal R. When the enable signal E is on and the reset signal R is false, the block outputs the input signal delayed by one sample period.
When the enable signal E is on and the reset signal R is true, the block resets the current state to the initial condition given by the signal IC, and outputs that state delayed by one sample period.
When the enable signal is off, the block is disabled, and the state and output do not change except for resets. The enable signal is on when E is not 0, and off when E is 0.
The output data type is the same as the input u and the initial condition IC data type, which can be any data type, but must be the same. The enable E and reset R can be any data type.
You specify the time between samples with the Sample time parameter. A setting of -1 means the Sample time is inherited.
Data Type Support
The Unit Delay Enabled Resettable External IC block accepts signals of any data type supported by Simulink, including fixed-point data types.
Parameters and Dialog Box
-1. See Specifying Sample Time in the online documentation for more information.
Characteristics
| Direct Feedthrough |
No, of the input port No, of the enable port Yes, of the enable port Yes, of the external IC port |
| Sample Time |
Specified in the Sample time parameter |
| Scalar Expansion |
Yes |
See Also
Unit Delay, Unit Delay Enabled, Unit Delay Enabled External IC, Unit Delay Enabled Resettable, Unit Delay External IC, Unit Delay Resettable, Unit Delay Resettable External IC, Unit Delay With Preview Enabled, Unit Delay With Preview Enabled Resettable, Unit Delay With Preview Enabled Resettable External RV, Unit Delay With Preview Resettable, Unit Delay With Preview Resettable External RV
| | Unit Delay Enabled Resettable | Unit Delay External IC | |
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