The Bit to Integer Converter block maps groups of bits in the input vector to integers in the output vector. M defines how many bits are mapped for each output integer.
For unsigned integers, if M is the Number of bits per integer, then the block maps each group of M bits to an integer between 0 and 2M-1. As a result, the output vector length is 1/M times the input vector length. For signed integers, if M is the Number of bits per integer , then the block maps each group of M bits to an integer between –2M-1 and 2M-1-1.
This block accepts a column vector input signal with an integer multiple equal to the value you specify for Number of bits per integer parameter. The block accepts double, single, boolean, int8, uint8, int16, uint16, int32, uint32 and ufix1 input data types.
The number of input bits that the block maps to each integer of the output. This parameter must be an integer between 1 and 32.
Defines whether the first bit of the input signal is the most significant bit (MSB) or the least significant bit (LSB). The default selection is MSB.
Indicates if the integer value input ranges should be treated as signed or unsigned. The default setting is Unsigned.
If the input values are unsigned integers, you can choose from the following Output data type options:
Inherit via internal rule
Same as input
If the input values are signed integers, you can choose from the following Output data type options:
Inherit via internal rule
The default selection for this parameter is Inherit via internal rule.
When you set the parameter to Inherit via internal rule, the block determines the output data type based on the input data type.
If the input signal is floating-point (either double or single), the output data type is the same as the input data type.
If the input data type is not floating-point, the output data type is determined as if the parameter is set to Smallest integer .
When you set the parameter to Smallest integer, the software selects the output data type based on the settings used in the Hardware Implementation pane of the Configuration Parameters dialog box.
If ASIC/FPGA is selected, the output data type is the smallest ideal integer or fixed-point data type, based on the setting for the Number of bits per integer parameter.
For all other selections, the output data type is the smallest available (signed or unsigned) integer word length that is large enough to fit the ideal minimum bit size.
Refer to the example on the Integer to Bit Converter reference page: Fixed-Point Integer To Bit and Bit To Integer Conversion (Audio Scrambling and Descrambling Example)