...
Figure 33: Slide switch S1B (angle view).
Figure 34: Slide switch S1B schematic.
Figure 35: When slide switch S1B = FX2 PON, signal PS_EN is set to signal FX2_PS_EN driven by the EZ-USB FX2LP USB FX2 microcontroller under user control.
...
S1B position | Default position | Effect on 1.2V, 1.5V and 2 V and 2.5 V 5V rails |
---|---|---|
FX2 PON (onoff) | 1.2 V and 2.5 V rails controlled by USB FX2 microcontroller (signal FX2_PS_EN) PS_EN = FX2_PS_EN = 1 or 0 | |
PON (offon) | 1.2 V and 2.5 V rails always enabled (PS_EN = 1) PS_EN ≠ FX_PS_EN = 1 or 0 |
...