STA400A datasheet(56/117 Pages) STMICROELECTRONICS

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STA400A

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EpocThr_M

- Error Phase Offset Correction Threshold

Only carriers with a Re value equal or larger than mrm_epoc_thresh are taken for the EPOC internally calcula-

tions. The value is relative to the dynamic range of the signal. A value of 0FFF corresponds to 2047/2048. The

msb must be set always to ‘0’.

NormShift_M

- FFT Normalization

Normalization factor for FFT output. This register scales the FFT output by a factor of 2norm_shift_M. (mantissa

only)

LinScale_M

- FFT Output Linear Scaling

The register mrm_lin_scale performs a linear scaling of the FFT output data. The register values from 0 to 255

correspond to an actual scaling factor of Lin_scale_M/128, i.e. from 0 to 255/128. The default of 128 corre-

sponds to a scaling factor of 1.0.

ShiftOvfl_M

- NormShift Overflow Counter

Overflow counter of FFT shift and norm shift together. The counter trigger is set if the normalization 0x37 is too

large so that overall scaling is too large.

LimitOvfl_M

- Pre Processing Overflow Counter

Overflow event counter if the range of scale FFT data exceeds input range of PreProcessing.

Type:

MultiBytes - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

EpocThr2_M

0136

13-8

EpocThr1_M

0135

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

NormShift_M

0137

3-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

LinScale_M

0138

7-0

Type:

SingleByte - PR

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

ShiftOvfl_M

0139

7-0

Type:

SingleByte - PR

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

LimitOvfl_M

013B

7-0

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