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The BIDIR_INPUT bit selects how the engine interprets data.
0: Unidirectional input mode
Braking is automatically determined by the feedback conditions and is applied when required. Use of this mode also recovers an additional bit of vertical resolution. This mode should only be used for closed-loop operation.
Examples::
0% Input ? No output signal
50% Input ? Half-scale output signal
100% Input ? Full-scale output signal
1: Bidirectional input mode (default)
This mode is compatible with traditional open-loop signaling and also works well with closed-loop mode. When operating closed-loop, braking is automatically determined by the feedback conditions and applied when required. When operating open-loop modes, braking is only applied when the input signal is less than 50%.
Open-loop mode (ERM and LRA) examples:
0% Input ? Negative full-scale output signal (braking)
25% Input ? Negative half-scale output signal (braking)
50% Input ? No output signal
75% Input ? Positive half-scale output signal
100% Input ? Positive full-scale output signal
Closed-loop mode (ERM and LRA) examples:
0% to 50% Input ? No output signal
50% Input ? No output signal
75% Input ? Half-scale output signal
100% Input ? Full-scale output signal
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