Texas Instruments OMAP5912 Reference Manual page 1495

Table 64. OTG System Configuration Register 2 (OTG_SYSCON_2) (Continued)
Bit Name
27 SRP_GPDVBUS
† See Table 65, OTG_PADEN Source Status.
‡ See Table 66, HMC_PADEN: USB Signal Multiplexing Control Source.
SPRU761A
Description
Session request protocol generation discharge VBUS enable. This bit
enables the OTG controller to provide a VBUS discharge sequence as part
of its SRP generation activities. This bit enables the VBUS discharge
functionality after any VBUS charge process. When enabled, the duration
of the VBUS discharge is defined by SRP_GPUVBUS.
0: VBUS is not discharged after the SRP VBUS pulse.
1: VBUS is discharged after the SRP VBUS pulse.
This register is cleared 0 by soft reset or hardware reset.
USB OTG Controller
Universal Serial Bus (USB) 203