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This block takes in two inputs, one up and one down, and uses them to generate an index for a lookup table. The starting index is pre-loaded into an interface register and the up/down inputs increment or decrement the value.
Name | ADSP-214xx | ADSP-215xx/ADSP-SC5xx | ADAU145x/1456x |
---|---|---|---|
—————————————- | —————————————— | ————————————————-- | ——————————————- |
Up Down Control LUT | Not supported | Not supported | Sample |
Name | Type | Description |
---|---|---|
———————————- | ——————- | ———————————————————— |
Input0 | Control | increment input (up) |
Input1 | Control | decrement input (down) |
Input2 | Logic | Connected to a software interface register - reads the last stored value at startup |
Name | Type | Description |
---|---|---|
———————————-- | ——————- | —————————————————————————————- |
Output0 | Control | Output signal |
Output1 | Logic | Connected to a software interface register - writes the last output value |
GUI Parameter Name | Default Value | Range | Function Description |
---|---|---|---|
—————————————- | ———————- | ———————- | ——————————————————————————————————— |
ByPassEnable | disable | enable/disable | bypasses the LUT value looked up |
NoOfTableValues | 33 pts | [2, 800] | Sets the table size: the number of points used in the volume table curve. |
TableValues | 1 | [-16, 15.99] | The table points are the actual gain values for the volume curve in linear representation. Although the range supports the full values of [-16, 15.99] the table values should generally be between [0, 1] for proper gain adjustments. The user has full control in this table to add a linear, logarithmic of custom gain volume curve |
Parameter Name | Description | ADAU145x/ADAU146x |
---|---|---|
————————-- | ———————————————————————————————————————————- | ——————————— |
maxindex | maxnumber of table points | Fixed Point 32.0 |
table_p0 | All the points in the table are written to the DSP in their linear gain format | Fixed Point 8.24 |
Not applicable