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AM1707 Datasheet(PDF) 32 Page - Texas Instruments |
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AM1707 Datasheet(HTML) 32 Page - Texas Instruments |
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32 / 200 page ![]() AM1707 SPRS637E – FEBRUARY 2010 – REVISED JUNE 2014 www.ti.com 3.6.22 Unused USB0 (USB2.0) and USB1 (USB1.1) Pin Configurations If one or both USB modules on the device are not used, then some of the power supplies to those modules may not be required. This can eliminate the requirement for a 1.8V power supply to the USB modules. The required pin configurations for unused USB modules are shown below. Table 3-24. Unused USB0 and USB1 Pin Configurations SIGNAL NAME Configuration Configuration (When USB0 and USB1 are not used) (When USB0 is used and USB1 is not used) USB0_DM No connect Use as USB0 function USB0_DP No connect Use as USB0 function USB0_VDDA33 No connect 3.3V USB0_VDDA18 No connect 1.8V USB0_ID No connect Use as USB0 function USB0_VBUS No connect Use as USB0 function USB0_DRVVBUS/GP4[15] No connect or use as alternate function Use as USB0 or alternate function USB0_VDDA12 Internal USB0 PHY output connected to an external 0.22 μF filter capacitor, even if USB0 is not used. USB1_DM No connect VSS USB1_DP No connect VSS USB1_VDDA33 No connect No connect USB1_VDDA18 No connect No connect AHCLKX0/AHCLKX2/USB_REFCLKIN/ No connect or use as alternate function Use as USB0 or alternate function GP2[11] 32 Device Overview Copyright © 2010–2014, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: AM1707 |
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