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Bit Slice

Return field of consecutive bits from input signal

  • Library:
  • HDL Coder / Logic and Bit Operations

  • Bit Slice block

Description

The Bit Slice block returns a field of consecutive bits from the input signal. Specify the lower and upper boundaries of the bit field by using zero-based indices in the LSB Position and MSB Position parameters. For an input word size WS, LSB Position and MSB Position must satisfy these constraints:

WS > MSB Position >= LSB Position >= 0

Ports

Input

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Input signal on which the bit-rotation is performed. The input signal has a maximum bit width of 128.

Data Types: int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point

Output

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Output signal that is bit-sliced. The word length of the output is computed as (MSB Position - LSB Position) + 1, where MSB Position and LSB Position are block parameters.

Data Types: uint8 | uint16 | uint32 | uint64 | fixed point

Parameters

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Specifies the bit position (zero-based) of the most significant bit (MSB) of the field to extract.

For an input word size WS,MSB Position must satisfy these constraints:

WS > MSB Position >= LSB Position >= 0

Programmatic Use

Block parameter: lidk
Type: string scalar | character vector
Value: positive integer value such that satisfies the constraints mentioned previously
Default: '7'

Specifies the bit position (zero-based) of the least significant bit (LSB) of the field to extract.

For an input word size WS, LSB Position must satisfy these constraints:

WS > MSB Position >= LSB Position >= 0

Programmatic Use

Block parameter: ridk
Type: string scalar | character vector
Value: positive integer value such that satisfies the constraints mentioned previously
Default: '0'

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2014a