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1. Dynamic full power operation (PS_EN = 1): when the EZ-USB FX2LP USB FX2 microcontroller sets signal PS_EN = FX2_PS_EN = 1, power rails 1.2 V and 2.5 V are enabled.
   This setting can be useful for .
2. Dynamic low power operation (PS_EN = 0): when the EZ-USB FX2LP USB FX2 microcontroller resets signal PS_EN = FX2_PS_EN = 0, the following components are switched off:

• FPGA core logic (1.2V)
• DDR SDRAM (2.5V)
• FPGA bank 1 (2.5V)
• VREF (2.5V)

• VCCCIO0 (2.5V) FPGA bank 0 (if R102+R103- assembly)

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