STM32F205XX Datasheet, PDF (154/170 Pages) STMicroelectronics – USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

Application block diagrams
STM32F205xx, STM32F207xx
Figure 88. OTG FS (full speed) connection dual-role with internal PHY
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1. External voltage regulator only needed when building a V_BUS powered device.
2. The current limiter is required only if the application has to support a V_BUS powered device. A basic power
switch can be used if 5 V are available on the application board.
3. The ID pin is required in dual role only.
4. The same application can be developed using the OTG HS in FS mode to achieve enhanced performance
thanks to the large Rx/Tx FIFO and to a dedicated DMA controller.
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Doc ID 15818 Rev 8