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Bit Set

Set specified bit of stored integer to one

  • Library:
  • Simulink / Logic and Bit Operations

    HDL Coder / Logic and Bit Operations


The Bit Set block sets the specified bit of the stored integer to one. Scaling is ignored.

You can specify the bit to be set to one with the Index of bit parameter, where bit zero is the least significant bit.



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Input signal with the specified bit of the stored integer.

Data Types: single | double | Boolean | fixed point


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Output signal with the specified bit set to 1.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean | fixed point | enumerated | bus


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Index of bit where bit 0 is the least significant bit.

Programmatic Use

Block Parameter: iBit
Type: character vector
Values: positive integer

Block Characteristics

Data Types

Boolean[a] | fixed point | integer

Direct Feedthrough


Multidimensional Signals


Variable-Size Signals


Zero-Crossing Detection


[a] Bit operations are not recommended for use with Boolean signals.

Extended Capabilities

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

PLC Code Generation
Generate Structured Text code using Simulink® PLC Coder™.

Fixed-Point Conversion
Convert floating-point algorithms to fixed point using Fixed-Point Designer™.

Introduced before R2006a