Trion T120 BGA324 Development Kit User Guide
Header J2 (Optional Camera Signals)
The J2 header has optional pins (SCL and SDA) that are used for MIPI Camera Command
Set (CSS) transactions. These signals are routed to the Trion
®
T120 FPGA on the board. You
can control these pins with an external device by removing the jumpers and connecting wires
from the header to an external device.
Note:
If you connect jumpers to any pins in J2, do not use the corresponding Trion
®
T120 GPIO in your
design. For example, if you use jumpers on pins 1-2 and 3-4, do not use
GPIO_69
or
GPIO_70
.
Table 29: Optional Camera Signals (J2)
Pin
Number
Pin Name
Description
Pin
Number
Pin Name
Description
1
GPIOL_69_1V8_SCL_15FPC
2
SCL_15FPC
I
2
C bus SCL signal
3
GPIOL_70_1V8_SDA_15FPC
4
SDA_15FPC
I
2
C bus SDA signal
5
GPIOL_71_1V8_15FPC
6
CAM_GPIO0_15FPC Camera GPIO
7
GPIOL_72_1V8_15FPC
1.8 V I/O from
development
board
8
CAM_GPIO1_15FPC Camera clock
9
GND
Ground
10
GND
Ground
Setting up the Board
Installing Standoffs
Before using the board, attach the standoffs with the screws provided in the kit.
Warning:
The board can be damaged if you over tighten the screws. Tighten all screws to a torque
between 4 ± 0.5 kgf/cm and 5 ± 0.5 kgf/cm.
Setting the Power-Up Sequence for MIPI
Cameras
Trion
®
T120 BGA324 Development Board has a built-in power-up sequence circuit for the
MIPI transmitter and receiver interfaces (P5, P6, P7, and P8) that is compatible with MIPI
camera sensor power requirements. To enable the power-up sequence, you connect jumpers
on the power supply headers J4, J5, and J6.
1.
Remove power from the board.
2.
Choose your camera voltage for VSUP1 (J4) by connecting pins 5 and 6 for 3.3 V or pins
9 and 10 for 2.8 V.
3.
Connect pins 5 and 6 for VSUP2 (J5).
4.
Connect pins 3 and 4 for VSUP3 (J6).
5.
Attach the camera connector daughter card for the camera you want to use to the board.
6.
Attach the camera to the daughter card.
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