Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
phyCORE-OMAP44xx
122
©
PHYTEC Messtechnik GmbH
2012
L-760e_1
The clock signal of the camera interface can be derived from either a 26 MHz oscillator at QO1, or from the
X_FREF_CLK4_OUT signal (pin X1D43) of the phyCORE-OMAP44XX. The clock source can be configured with
jumper J14. In the default configuration ( position 1+2) the oscillator at QO1 (26 MHz ) is selected as clock
source.
Configuring the trigger of the camera reset is also possible. Jumper J10 connects the reset output of the
phyCAM-P interface to the main system reset (X_nRESET_PWRON), or to the OMAP44xx's specially dedicated
reset output (cam_globalreset) at pin X1B11 (X_CAM_GLOBAL_RESET) of the phyCORE-OMAP44xx. At the time
of delivery jumper J10 is closed at 1 + 2 which selects the main system reset (X_nRESET_PWRON).
Camera control signals CAM-2_CTRL1 and CAM-2_CTRL2 support different features which vary according to the
camera module connected. Jumpers JP7 (for CAM-2_CTRL1) and JP8 (for CAM-2_CTRL2) allow to connect them
either to GND, VCC_CAM-2, or to leave them unconnected. Please refer to the hardware manual delivered with
your camera board for precise information which configuration is needed for your camera module. The default
setting of jumpers JP7 and JP8 is 2+ 3 which connects the camera control signals to GND.
2.1.3.9.3 Camera Auxiliary Connector (X2)
The camera auxiliary connector X2 can be used to configure camera control signals CAM-1_CTRL1 and
CAM-1_CTRL2. They are available at expansion connector X5 to support implementation of a custom camera
interface using the primary camera interface (CSI2-A/CSI21) of the OMAP44xx. Removable jumpers can be used
to connect CAM-1_CTRL1 and CAM-1_CTRL2 to GND, or VCC_CAM-1
1
. Pin 30 (CAM-1_VSET) can be used to adjust
VCC_CAM-1 to meet the voltage required for your camera module (refer to the hardware manual delivered with
your camera board for precise information which configuration is needed and how to adjust the voltage).
Leaving pin 30 open results in a voltage level of 1.25 V at VCC_CAM-1 .
All other pins of the camera auxiliary connector X2 are reserved for future use and should be left open.
1.
JP6 must be closed to have VCC_CAM_1 available at the camera auxiliary connector X2
Pin #
Signal Name
I/O
SL
Description
1
VCC_3V3
O
3.3 V
Power supply
2
VCC_3V3
O
3.3 V
Power supply
3
VCC_CAM-1
O
VCC_CAM-1
Camera power supply
4
VCC_CAM-1
O
VCC_CAM-1
Camera power supply
5
CAM-1_CTRL1
-
-
Camera control line 1
6
CAM-1_CTRL2
-
-
Camera control line 2
7
GND
-
-
Ground
8
GND
-
-
Ground
9
CAM-1_SDA
I/O
VCC_CAM-1
Reserved for future use
10
x
CAM-1_SCL
I/O
VCC_CAM-1
Reserved for future use
11
/CAM-1_RST
O
VCC_CAM-1
Reserved for future use
12
CAM-1_VS
I
VCC_CAM-1
Reserved for future use
13
CAM-1_HS
I
VCC_CAM-1
Reserved for future use
14
GND
-
-
Ground
Table 58:
Camera Auxiliary Connector X2
