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CD00237391 Datasheet(PDF) 160 Page - STMicroelectronics |
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CD00237391 Datasheet(HTML) 160 Page - STMicroelectronics |
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160 / 177 page  Application block diagrams STM32F20xxx 160/177 Doc ID 15818 Rev 9 A.4 USB OTG high speed (HS) interface solutions Figure 89. OTG HS (high speed) device connection, host and dual-role in high-speed mode with external PHY 1. It is possible to use MCO1 or MCO2 to save a crystal. It is however not mandatory to clock the STM32F20x with a 24 or 26 MHz crystal when using USB HS. The above figure only shows an example of a possible connection. 2. The ID pin is required in dual role only. DP STM32F20xxx DM VBUS VSS DM DP ID(2) USB USB HS OTG Ctrl FS PHY ULPI High speed OTG PHY ULPI_CLK ULPI_D[7:0] ULPI_DIR ULPI_STP ULPI_NXT not connected connector MCO1 or MCO2 24 or 26 MHz XT(1) PLL XT1 XI ai16036c |
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