Gateway In Inherited (Fixed-Point Blockset)

Convert a Simulink data type to a Fixed-Point Blockset data type, and inherit the data type and scaling

Library

Data Type

Description

The Gateway In Inherited block is a masked S-function that converts a built-in Simulink data type to a Fixed-Point Blockset data type.

The block requires two inputs. The first (top) input provides the data type and scaling information. The second (bottom) input passes through to the output, and inherits the data type and scaling of the first input. If you want to explicitly specify the output data type and scaling, use the Gateway In block.

The Input and Output to have equal parameter list controls how the input is processed. The possible values are Real World Value and Stored Integer. In terms of the general encoding scheme described in Scaling, Real World Value treats the input as V = SQ + B where S is the slope and B is the bias. Stored Integer treats the input as a stored integer, Q. For more information about this parameter list, refer to the Gateway In block.

For a detailed description of all other block parameters, refer to Block Parameters.

Inheriting the data type and scaling provides these advantages:

It makes reusing existing models easier.
It allows you to create new fixed-point models with less effort since you can avoid the detail of specifying the associated parameters.

Parameters and Dialog Box

Input and Output to have equal: Specify the type of value that the input and output are to have equal.
Round toward: Rounding mode for fixed-point output.
Saturate to max or min when overflows occur: If selected, fixed-point overflows saturate.

Characteristics

Input Port
Any built-in Simulink data type

Output Port
Any data type supported by the blockset

Direct Feedthrough
Yes

Scalar Expansion
No

Input Port	Any built-in Simulink data type
Output Port	Any data type supported by the blockset
Direct Feedthrough	Yes
Scalar Expansion	No

See Also

Gateway In

Gateway In Gateway Out