Texas Instruments OMAP5912 Reference Manual page 1597

USB Host With Transceiverless Link Logic (TXD/TXSE0)
SPRU761A
Caution
The OMAP5912 USB device cannot operate as a low-speed USB
device. Do not set TLL_SPEED to 0 when HMC_MODE connects the
OMAP5912 USB device controller to the transceiverless link logic.
The transceiverless link logic cannot be used as part of an OTG connection
to an on-board OTG device. An OTG connection always requires an OTG
transceiver. Some modes of operation simultaneously support a
transceiver-based OTG connection and an additional transceiverless link logic
connection to an on-board downstream USB device. OMAP5912 does not
provide any modes where both a transceiverless link logic connection to an
on-board USB host and a transceiver-based OTG connection are
simultaneously
available.
Figure 85 shows connectivity when OMAP5912 acts as the USB host
controller on a transceiverless link connection to an on-board USB device
controller.
USB OTG Controller
Universal Serial Bus (USB) 305