L2 suspend | Cypress Semiconductor
dealing with FX3S power management I see on its manual (CYUSB303X_001-84160_0D_V.pdf, page 13) an interesting suspend mode: "
Suspend mode with USB 3.0 PHY disabled (L2)". The strange thing is that "Methods of Exit" is equal to L1, where the PHY is enabled.
1 - How can the cpu be re-woken from USB bus if the PHY disabled?
2 - Is it possible to enter in L2 suspend mode using the API? this can be very useful to save some mW and reach the (in)famous 2.5mA total suspend current...