Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
phyCORE-OMAP44xx
108
©
PHYTEC Messtechnik GmbH
2012
L-760e_1
2.1.3.6 USB OTG Connectivity (X7)
Figure 27:
USB OTG Interface at Connector X7
The USB OTG interface of the phyCORE is accessible at connector X7 (USB Mini AB) on the carrier board.
The phyCORE supports the On-The-Go feature. The Universal Serial Bus On-The-Go is a device capable to initiate
the session, control the connection and exchange Host/Peripheral roles between each other. This interface is
compliant with USB revision 2.0.
Two jumpers allow to configure the USB OTG interface. Jumper J5 on the backside of the carrier board
(see
) connects the overcurrent signal USB_OTG_OC to pin X1D42 (X_SYS_NIRQ2 (GPIO183)) of the
phyCORE-OMAP44xx making it possible to evaluate this signal. An overcurrent is detected if this signal is LOW.
Removing jumper J5 allows to utilize GPIO 183 of the OMAP44xx for other purpose. Jumper JP9 configures the
OTG operating mode. By default this jumper is open, which leaves the USB_OTG_ID pin floating, and thus
configuring the OTG interface as slave. Alternatively this jumper can be closed, connecting USB_OTG_ID to GND,
and configuring the OTG interface as host. Typically the configuration of a connecting device as host or slave is
done automatically via a USB OTG cable. However, given the limited number of OTG enabled devices in the
embedded market this jumper is provided to either simulate an OTG cable, or force the OTG interface into Host
mode when OTG operation is not required.
LED D27 signals VBUS power output.
Содержание phyCORE-OMAP44 Series
Страница 10: ...phyCORE OMAP44xx PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 20: ...phyCORE OMAP44xx 8 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 22: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 10 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 46: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 34 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 70: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 58 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 84: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 72 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 92: ...Part II PCM 959 phyCORE OMAP44xx Carrier Board phyCORE OMAP44xx 80 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 166: ...Part II PCM 959 phyCORE OMAP44xx Carrier Board phyCORE OMAP44xx 154 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 168: ...Revision History phyCORE OMAP44xx 172 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...