Fixed-Point Blockset

Unit Delay External IC

Delay a signal one sample period, with an external initial condition

Library

Delays & Holds

Description

The Unit Delay External IC block is a masked block that delays its input by one sample period. This block is equivalent to the z^-1 discrete-time operator. The block accepts one input and generates one output, both of which can be scalar or vector. If the input is a vector, all elements of the vector are delayed by the same sample period.

The block's output for the first sample period is equal to the signal IC.

The input u and initial condition IC data types must be the same, and are 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 IC	Same as the input u
Output Port	Same as the input u
Direct Feedthrough	No, of the input port Yes, of the external IC port
Scalar Expansion	Yes

See Also

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

Unit Delay Resettable