LCMXO2-4000HE-DSIB-EVN Lattice, LCMXO2-4000HE-DSIB-EVN Datasheet - Page 3

• Manufacturer Part Number: LCMXO2-4000HE-DSIB-EVN
• Description: Programmable Logic IC Development Tools MachXO2 Dual Sensor Interface Board
• Manufacturer: Lattice
• Type: FPGAr

Specifications of LCMXO2-4000HE-DSIB-EVN

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: LCMXO2-4000
• Interface Type: Parallel, Serial
• Operating Supply Voltage: 5 V
• Description/function: MachXO2 Dual Sensor Interface Board
• Dimensions: 113 mm x 65 mm
• Maximum Operating Temperature: + 55 C
• Minimum Operating Temperature: 0 C
• Factory Pack Quantity: 1
• For Use With: LFE3-70EA-HDR60-DKN

Lattice Semiconductor
Features
• MachXO2-4000 PLD for sensor interfacing and driving a parallel ISP bus
• LP SDRAM: 16-bit data over a 32Mb address space
• Built-in USB 2.0 download to MachXO2
• Can be configured for a flywire ispDOWNLOAD
• HiSPi and other serial sensor interfaces can be supported
• One MEMS-based oscillator for sensor synchronization
• 36-pin flat ribbon cable connector for TI IPNC camera connections
• 3.3V, 2.5V and 1.8V voltages are possible for various MachXO2 I/O banks
• ispVM™ System programming support
The MachXO2 Dual Sensor Interface Board demonstrates a low cost solution for combining data from two image
sensors to a single ISP parallel bus. A MachXO2-4000 device and an external SDRAM memory device are the key
components of the solution. The two Aptina sensors are configured to output pixel data via HiSPi serial data lanes.
These HiSPi lanes are sent to the MachXO2 device where it converts the serial data of each sensor to two internal
buses. Finally, the MachXO2 device combines the two sensors’ data and outputs a single parallel bus. Depending
on the desired output format, the external SDRAM device may be used by the MachXO2 device to store image
frames and aid in output formatting. The parallel bus is typically driven to an ISP device (see Figure 2). However,
when the DSIB is used with the HDR-60 Base Board, the output is sent to the LatticeECP3™ FPGA which simply
accepts the parallel bus and drives the HDMI connector so an image can be seen on a LCD monitor.
Figure 2. Dual Sensor HiSPi Bridge
General Description
The heart of the MachXO2 Dual Sensor Interface Board is the MachXO2-4000 PLD. The devices and connectors
attached to the MachXO2 device provide the means to investigate applications for sensor bridging and dual sensor
processing. The board also provides several different interconnects to support many devices for a variety of pur-
poses. The HiSPi or other serial sensor input, low power SDRAM memory and connectors for the parallel data are
useful in applications that use Lattice sensor-oriented reference designs. Resources such as updates to this docu-
ment, sample applications and links to demos can be found by visiting www.latticesemi.com/dualsensorbridge, and
navigating to the appropriate page for this board.
Initial Setup and Handling
The following is recommended reading prior to removing the evaluation board from the static shielding bag and
may or may not apply to your particular use of the board.
Sensor
Sensor
HiSPi Serial Bus
®
cable connection
Low Power
MachXO2
SDRAM
3
MachXO2 Dual Sensor Interface Board
Hsync, Vsync
Parallel Bus
CLK
Processor (ISP)
Image Signal
User’s Guide