TMS320C5517: Confirm the time limitation for power sequence of USB power domain.

Hi Kaka,

There is no such limitation specified in the Data Manual neither in section 5.7.19 Universal Serial Bus (USB) 2.0 Controller, nor in section 5.7.2.2 Power-Supply Sequencing. Moreover section 5.7.2.2 states that there is no specific power-up sequence for the device, and states only that:
If the USB subsystem is used, the subsystem must be powered up in the following sequence:
1. USB_VDDA1P3 and USB_VDD1P3
2. USB_VDDA3P3
3. USB_VBUS
If the USB subsystem is not used, the following can be powered off:
• USB Core
– USB_VDD1P3
– USB_VDDA1P3
• USB PHY and I/O Level Supplies
– USB_VDDOSC
– USB_VDDA3P3
– USB_VDDPLL

Also there is no limitation mentioned in the Power Management Solutions forC5000™ Ultra-Low Power DSPs (www.ti.com/.../slyt435a.pdf).

Best Regards,
Yordan