I have a TUSB1310A as a USB 3.0 device. When the USB bus is in the U2 state the Link Controller has the POWER_DOWN pins are set to P2. On a USB bus analyser I see the host send an 82uS U2 EXIT LFPS pulse, the RX_ELECIDLE pin goes low for the LFPS pulse period but does not always go high at the end of the pulse. Sometimes I see a 4ns pulse, sometimes there is nothing for 8ms while the host sends TS1 ordered sets. Is this the RX_ELECIDLE issue shown in Errata? Is there a reliable way to detect the end of the U2 EXIT pulse?
Thanks,
Jonathan Welch
