Element-wise reinterpretation of the input type into a compatible output type with the same bit width
Library
Signal Attributes
Description
The Reinterpret block provides a mechanism for interpreting a value from a different data type. You can specify the output data type with the restriction that the bit widths of input and output data types must match.
In the above example, the input is of fixed-point signed number (x_sfix8_En2) represented with 8 bits, in which 2 bits are used for the fractional part (i.e., -4 = 1111 00.00). The Reinterpret block interprets the input type to unsigned fixed-point number (x_ufix8), represented with 8 bits as that of input, and no bits are used for the fractional part. The output becomes 240 (1111 0000).
Data Type Support
The data types of the input can be any integer, Boolean, fixed-point, or floating-point data type. The input can be any real or complex valued signal. If the input is real, the output is real. If the input is complex, the output is complex. The block supports scalar, vector, or matrix data.
Following are the supported output data types.
| Input Data Type | Supported Output Data Type |
|---|---|
| double | double, 64 bit fixed-point data |
| single | single, int32, uint32, 32 bit fixed-point data |
| int8 | int8, uint8, 8 bit fixed-point data |
| uint8 | uint8, int8, 8 bit fixed-point data |
| int16 | int16, uint16, half, 16 bit fixed-point data |
| int16 | uint16, int16, half, 16 bit fixed-point data |
| uint16 | int32, uint32, single, 32 bit fixed-point data |
| int32 | int32, uint32, single, 32 bit fixed-point data |
| uint32 | uint32, int32, single, 32 bit fixed-point data |
| bool | bool, 1 bit fixed-point data |
| fixed | Same bit width fixed-point data with different fractional widths, all native data types if the bit width matches |
| half | half, int16, uint16, 16 bit fixed-point data type |
Parameters
Output data type
This parameter specifies the output data type for reinterpreting the input data. If fixed is specified more parameters are available.
Following are the settings for the Output data type parameter.
| Setting | Description |
|---|---|
| double | Double precision floating point |
| single | Single precision floating point |
| int8 | 8-bit signed integer |
| uint8 | 8-bit unsigned integer |
| int16 | 16-bit signed integer |
| uint16 | 16-bit unsigned integer |
| int32 | 32-bit signed integer |
| uint32 | 32-bit unsigned integer |
| boolean | Boolean |
| fixed | Fixed-point |
| half | Half precision floating-point |
| data type expression |
A string that specifies the output data type. See Working with Data Type Expression in the Vitis Model Composer User Guide (UG1483). |