Texas Instruments OMAP5912 Reference Manual page 1573

Pin Group 2 USB Host Using 4-Wire USB Transceiver
Figure 71. USB Host Connections on USB Pin Group 2 Using 4-Wire Transceiver
U1
MCSI2.DOUT/USB2.TXEN
UART2.TX/USB2.TXD
UART2.RTS/USB2.SE0
UART2.CTS/USB2.RCV
MCSI2.SYNC/USB2.SPEED
MCSI2.CLK/USB2.SUSP
GPIO
OMAP5912
SPRU761A
OE
OE
TXVP/RCVVP
VP
TXVM/RCVVM
VM
RCV
RCV
SPEED
SPEED
SUSPEND
SUSPEND
VBUS_ENABLE
OVERCURRENT
R1, R2
R3, R4
C1
U1
U2
U3
U4
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:
-
MCSI2.DOUT/USB2.TXEN
-
UART2.TX/USB2.TXD
-
UART2.RTS/USB2.SE0
-
UART2.CTS/USB2.RCV
-
MCSI2.SYNC/USB2.SPEED
-
MCSI2.CLK/USB2.SUSP
See Table 74.
U2
D+
D−
VDD
USB transceiver
VBUS
CONTROL
Value depends on transceiver
15K Ohm 5%
Low ESR cap, minimum 120 uF
OMAP5912
USB transceiver
Transient suppressor, like SN65220, SN65240, or SN75240
Power switch, like TPS2014 or TPS2015
USB type-A receptacle
Universal Serial Bus (USB)
USB OTG Controller
R1
Transient
U3
suppressor
R2
R3
R4
VBUS
U4
C1
J1
281