phyCORE-OMAP44xx
Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
L-760e_1 © PHYTEC Messtechnik GmbH 2012
97
To support all features of the phyCORE-OMAP44xx Carrier Board the BSP provided assigns functions different to
what is described in
to some pins of the phyCORE-OMAP44xx.
different to what is described in
. Use of these pins in their original function described in
this manual requires changing the BSP.
Pin # at
phyCORE-
Connector
Signal
I/O( from
the phy-
CORE's per-
spective)
SL at phyCORE-
Connector
Description
X1A38
X_GPIO_115
O
VCC_1V8_IO
USB_OTG_EN enables the
USB OTG V
BUS
detection
X1A39
X_McASP_AMUTEIN
I
1.8 V
Interrupt signal of the
touch controller, available
at GPIO 117 of the
OMAP44xx
X1B13
X_FREF_CLK1_OUT_GPIO_181
I
1.8 V
GPIO 181 used as power on/
off signal input to allow for
an ON/OFF switch on a front
panel
X1B36
X_ABE_CLKS
O
VCC_1V8_IO
GPIO 118 used as display
enable signal at display
data connector X12
X1B39
X_GPIO_114
I
VCC_1V8_IO
SPI Interface Ready signal
X1D16
X_UART4_TX
I
1.8 V
GPIO 156 used as interrupt
input of PEB connector X18
X1D17
X_UART4_RX
I
1.8 V
GPIO 155 used as interrupt
input of PEB connector X19
X1D28
X_GPIO_WK30
I
1.8 V
GPIO WK30 functions as
input for the card detect
signal of SDMMC5 Card Slot
X10
X1D29
X_FREF_CLK4_REQ
O
VCC_1V8_IO
Clock for the audio driver at
U43
1
1.
Can be disconnected by changing jumper J13
X1D34
X_HDMI_CEC
I/O
1.8 V /
VCC_1V8_IO
Connects to GPIO 64 as SPI
interrupt input
X1D42
X_SYS_NIRQ2
I
1.8 V
In the standard
configuration the USB OTG
overcurrent signal
(USB_OTG_OC) is attached
to this pin and interpreted
by the BSP utilizing GPIO
183 of the OMAP44xx.
2
2.
Opening jumper J5 disconnects USB_OTG_OC from the phyCORE-Connector
Table 42:
Specifically used Pins on the phyCORE-Connector