fft IP kernel s_axis_config_tdata function?

xilinx fft s_axis_config_tdata has different meanings under different options
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default configuration

Configuration 1

Configuration 2

Part of the answer refers to GPT,
The s_axis_config_tdata of Xilinx's generation IP core is a 32-bit control signal, the lowest level determines whether to send data, that is, 0 means no send, 1 means send; Other high-value reduction multiples refer to a reduction coefficient corresponding to each digit. Taking 11 as an example, that is, the reduction coefficient is 3, which means that when s_axis_config_tdata is configured as 11, 3 data will be sent each time.
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s_axis_config_tdata is configured to 11. Shouldn't the amplitude after fft of the signal be reduced by a factor of 3?