Texas Instruments OMAP5912 Reference Manual page 1538

USB OTG Controller
Table 73. USB Signal Multiplexing Modes
USB
Multi-
HMC_ OTG plex-
MOD Re- ing
E quired? Port 0
0 No USB
device
0 Yes USB
(cont) OTG
246 Universal Serial Bus (USB)
J
MCSI2.DOUT/USB0.TXEN
J
UART2.TX/USB0.TXD
J
UART2.RTS/USB0.SE0
J
UART2.CTS/USB0.RCV
J
MCSI2.DIN/USB0.VP
J
UART2.RX/USB0.VM
J
MCSI2.SYNC/USB0.SPEED
J
MCSI2.CLK/USB0.SUSP
The selection procedure is as follows:
1) Given the required USB functionality, the USB pin group descriptions, and
any non-USB usage of the pins in the pin group descriptions, choose a
USB signal multiplexing mode from Table 73.
2) Find a value of HMC_MODE where all of the required USB functionality
is available from the three USB multiplexing port columns.
3) Examine the OMAP5912 pin usage shown under the pin group and
alternate pin group columns and find one HMC_MODE value that meets
your needs for both USB and non-USB functionality.
4) Make careful note of the information in the row that determines how the
top-level pin multiplexing and HMC_MODE value must be configured (see
Table 73).
USB USB
Multi- Multi-
plex- plex-
ing ing
Port 1 Port 2
Disable Disable
d d
Disable Disable
d d
USB Pin USB Pin
Group 0 Group 1
USBdevice: Available for
See Note 1. non-USB
usage
Available for
non-USB
usage
USB OTG: Available for
See Note 3. non-USB
usage
Available for
non-USB
usage
USB Alter-
USB Pin
nate Pin
Group 2
Group 2
Available for N/A
non-USB
usage
N/A USB device:
See Note 2.
Available for N/A
non-USB
usage
N/A USB OTG:
See Note 4.
SPRU761A