Fixed-Point Blockset

Unit Delay Enabled External IC

Delay a signal one sample period, if the external enable signal is on, with an external initial condition

Library

Delays & Holds

Description

The Unit Delay Enabled External IC block is a masked block that delays a signal by one sample period when the enable signal E is on. While the enable is off, the block holds the current state at the same value and outputs that value. The enable E is on when E is not 0, and off when E is 0.

The initial condition of this block is given by the signal IC.

The input u and IC data types must be the same, and are any data type. The output data type is the same as u and IC. The enable E is any data type.

You specify the time between samples with the Sample time parameter. A setting of -1 means the Sample time is inherited.

Parameters and Dialog Box

Sample time

Sample time.

Characteristics

Input Port u	Any data type supported by the blockset
Input Port E	Any data type supported by the blockset
Input Port IC	Same as the input u
Output Port	Same as the input u
Direct Feedthrough	Yes, of the reset input port No, of the enable input port Yes, of the external IC port
Scalar Expansion	Yes

See Also

Unit Delay, Unit Delay Enabled, Unit Delay Enabled Resettable, Unit Delay Enabled Resettable External IC, 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

Unit Delay Enabled Resettable