Table of Contents
Advertisement
USB OTG Controller
Figure 58 shows the typical events that occur when OMAP5912 acts as an
OTG default-B dual-role device and transitions from acting as a B-peripheral
to acting as a B-host via HNP, and then transitions back to acting as a
B-peripheral via HNP.
If the default-A device does not enable its pullup resistor within the required
time, if the default-A device issues a USB resume during the HNP process, or
if the VBUS voltage falls below VB_SESS_VLD threshold during the HNP
process, the OMAP5912 OTG controller issues a B_HNP_FAIL interrupt.
SPRU761A
Universal Serial Bus (USB)
241
Advertisement
Chapters
Table of Contents
