20 Pin Expansion Connector / CMOS Camera Interface

An expansion connector is a set of pins or sockets on a printed circuit board that provides an interface to connect additional components or modules.

• In this case, the expansion connector J5 is providing 16 input/output (I/O) lines that can be used to connect the spartan6 FPGA (Field-Programmable Gate Array) to an external interface.

The OV7670 is a CMOS (Complementary Metal-Oxide-Semiconductor) camera that can be interfaced with the EDGE Board.

• Pin1 and pin2 of the expansion connector J5 are left unconnected, which means they are not used in this configuration.

• Pin3 of the expansion connector J5 is connected to pin1 of the CMOS camera, which provides a communication channel between the camera and the FPGA through the I/O lines of the expansion connector.

The 16 I/O lines of the expansion connector can be configured as inputs or outputs, depending on the requirements of the application.

These lines can be used to transfer data, control signals, or other types of information between the FPGA and the external device.

The specific usage of these lines will depend on the design of the system and the protocols that are being used for communication.

NOTE:

OV7670 is a low-cost, small-size CMOS (Complementary Metal-Oxide-Semiconductor) camera module that is widely used in various embedded systems and applications.

It is manufactured by OmniVision Technologies, and it is designed to provide image and video capture capabilities to a wide range of devices.