Lattice Semiconductors' CrossLink is a programmable video interface bridging device capable of providing multiple MIPI CSI-2 interfaces at up to 6 Gbps per PHY. This bridge is available as free IP in Lattice Diamond® for allowing easy configuration and setup. Many applications, such as virtual reality, augmented reality, and digital cameras, require expansion of the number of display interfaces on applications processors. This often occurs when there is either not enough ports or some ports are used for other purposes on the application processor. Common examples are splitting one MIPI DSI port to two MIPI DSI ports and driving two displays. Another example is driving a high-resolution display with two DSI ports with a single higher speed MIPI DSI interface.
4 Example Solutions: Below are four example solutions by Lattice that provide programmable video interface bridging that can provide multiple MIPI CSI-2 interface with speeds up to 6 Gbps per PHY.
Multi CSI-2 Image Sensor Interface Bridging Solutions
- Bridge multiple CSI-2 image sensors to one MIPI CSI-2 output
- GPIO control of trigger and synchronized image sensors
- Larger horizontal video frame data stitching
Multi MIPI DSI Display Bridging
- Support multiple MIPI DSI displays
- Peripheral functions and power sequencing control of displays with additional GPIO
- Duplicate video to parallel displays or bandwidth reduction by half over two PHYs
Display Interface Conversion Bridging
- Ideal conversion to / from MIPI DSI, RGB.CMOS, and OpenLDI / LVDS
- Formatting needs such as crop and scale video data
Camera Interface Conversion Bridging
- Convert to / from SubLVDS, LVDS, MIPI CSI-2, HiSPi and other image interfaces
- Convert I2C to SPI for greater image and peripheral control
- Formatting needs such as crop and scale video data
Features
- Ultra-fast MIPI D-PHY bridging device delivers up to 4 UHD resolution at 12 Gbps bandwidth
- Supports popular mobile, camera, display and legacy interfaces such as MIPI D-PHY, MIPI CSI-2, MIPI DSI, MIPI DPI, CMOS, and SubLVDS, LVDS and more
- Industry’s smallest package size with a 6 mm2 option
- Lowest power programmable bridging solution in active mode
- Built-in sleep mode
- Takes the strongest features from ASSPs and FPGAs to deliver the best solution of both worlds
