Texas Instruments OMAP5912 Reference Manual page 1562

USB OTG Controller
OTG on Pin Group 1 OTG Using 6-Wire OTG Transceiver
Figure 62. OTG on USB Pin Group 1 Using 6-Wire OTG Transceiver
U1
MCBSP3.CLK/USB1.TXEN
MCSI1.DOUT/USB1.TXD
RTC_WAKEUP_INT/USB1.SE0
MCSI1.DIN/USB1.RCV
MCSI1.SYNC/USB1.VP
MCSI1.BCLK/USB1.VM
I2C.SCL
I2C.SDA
OMAP5912
270 Universal Serial Bus (USB)
OE
TXDAT
TXSE0
RCV
RCVVP
RCVVM
OTGIRQ
GPIOX
SCL
SDA
R1, R2
C1
U1
U2
U3
J1
Proper initialization of the OMAP5912 device to support this mode of operation
requires proper setting of the top-level pin multiplexing for these pins:
-
MCBSP3.CLKX/USB1.TXEN
-
MCSI1.DOUT/USB1.TXD
-
RTC_WAKE_INT/USB1.SE0
-
MCSI1.SYNC/USB1.VP
-
MCSI1.BCLK/USB1.VM
-
MCSI1.DIN/USB1.RCV
See Table 74.
HMC_MODE must be set to a value that provides OTG functionality on USB
Pin group 1 (see Table 73). OTG_SYSCON_1.USB1_TRX_MODE must be
set to 3 to allow proper operation of the 6-wire USB transceiver.
U2
OE
DAT
D+
SE0
RCV
D−
VP
VM
ID
VBUS
INT
VDD
SCL
SDA
USB OTG transceiver
Value depends on transceiver
VBUS capacitance must meet OTG spec C DRD_VBUS
OMAP5912
USB OTG transceiver
Transient suppressor, like SN65220, SN65240, or SN75240
USB mini-AB receptacle
R1
Transient
U3
suppressor
R2
C1
SPRU761A
J1