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When S2 is turned off, the 1.2 V and 2.5 V power rails are always enabled.
S2 position | Default position | Effect on 1.2 V and 2.5 V rails |
---|---|---|
FX2 PON (on)(1) | 1.2 V and 2.5 V rails controlled by USB FX2 microcontroller (signal FX2_PS_EN) | |
PON (off) | 1.2 V and 2.5 V rails always enabled |
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Table 14: Slide switch S2 settings overview (1.2 V and 2.5 V rails only).
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