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STMicroelectronics 32L4R9IDISCOVERY - USB OTG FS Connector CN9; ST-LINK;V2-1 USB Micro-B Connector CN13; Table 16. USB OTG FS Micro-AB Connector CN9; Figure 11. USB OTG FS Micro-AB Connector CN9

STMicroelectronics 32L4R9IDISCOVERY
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DocID030906 Rev 2 33/78
UM2271 Connectors
77
Touch panel interrupt output DSI_TOUCH_INT is connected to MFX_GPIO9. It is used as
touch panel detection indication. MFX_GPIO10 resets capacitive touch panel and DSI
display.
11.3 USB OTG FS connector CN9
An USB OTG full speed communication link is available at USB Micro AB receptacle
connector CN9. Micro AB receptacle enables USB Host and USB Device features.
MFX_GPIO13 is used to enable on-board VBUS power when in Host mode.
Figure 11. USB OTG FS Micro-AB connector CN9
11.4 ST-LINK/V2-1 USB Micro-B connector CN13
The USB connector CN13 is used to connect the embedded ST-LINK/V2-1 to the PC.
Table 16. USB OTG FS Micro-AB connector CN9
Pin number Description Pin number Description
1 VBUS (PA9) 4 ID (PA10)
2DM (PA11) 5GND
3 DP (PA12) - -
06Y9

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