C8051F340/1/2/3/4/5/6/7
From VBUS
From 3 V Power Net
VBUS
REGIN
VDD
VBUS Sense
5 V In Voltage Regulator (REG0)
3 V Out
Device
Power Net
Figure 8.3. REG0 Configuration: USB Self-Powered, Regulator Disabled
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| VBUS Sense | |
From 5 V |
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| REGIN |
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Power Net |
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To 3 V | VDD |
Power Net |
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Device
Power Net
Figure 8.4. REG0 Configuration: No USB Connection
Rev. 0.5 | 71 |
