Simulink Reference

Bit Clear

Set the specified bit of the stored integer to zero

Library

Logic and Bit Operations

Description

The Bit Clear block sets the specified bit, given by its index, of the stored integer to zero. Scaling is ignored.

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

Data Type Support

The Bit Clear block supports Simulink integer, fixed-point, and Boolean data types. True floating-point data types are not supported.

Parameters and Dialog Box

Index of bit

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

Examples

If the Bit Clear block is turned on for bit 2, bit 2 is set to 0. A vector of constants
2.^[0 1 2 3 4] is represented in binary as [00001 00010 00100 01000 10000]. With bit 2 set to 0, the result is [00001 00010 00000 01000 10000], which is represented in decimal as [1 2 0 8 16].

Characteristics

Direct Feedthrough	Yes
Scalar Expansion	Yes

See Also

Bit Set

Bias

Bit Set

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