Part Number:66AK2G02
Can you guys help my customer with the following questions?:
"I plan to add USB connector as USB Device mode on my board. There are two USB ports (USB0 and USB1) in the K2G EVM. USB0 is used for the USB Host mode. USB1 is configured as USB dual role (Host and Device). The K2G EVM schematic doesn’t exactly show the design of USB Device mode.
Q1: I would like to use a USB port on K2G to act as the USB Device mode (see Figure 11-1375 of spruhy8e Technical Reference Manual) to use +5V from PC for VBUS since I don't have +5V in digital domain on my board. Can you give me the reference schematic for USB Device role? I searched other Keystone devices and TI forum but didn’t find the answer. The reference design of USB Device role should include ESD and any required components.
Q2: Can I leave USB0_XO and USB1_XO unconnected? The 5.9.3.1 in data sheet of K2G says “ USB0_XO / USB1_XO - optional USB0_PHY / USB1_PHY reference clock input.” I plan to use NSS PLL for USB PHY reference clock. Is it ok?"
Thanks,
Brian