LCMXO2-4000HE-DSIB-EVN Lattice, LCMXO2-4000HE-DSIB-EVN Datasheet - Page 5

• 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
Functional Description
Figure 3. MachXO2 Dual Sensor Interface Board, Top Side
Configuration Options
There are several possible configurations that the MachXO2 Dual Sensor Interface Board can support. The options
are described below.
Default Configuration
The DSIB is shipped in a state that allows support for only one image sensor, located in sensor #1 as marked on
the board. The only jumper on the DSIB is J20 which shorts pins 1 and 2. This ensures that 1.8V is sourced to the
SDRAM device. The default programming file in the MachXO2 device supports bridging an Aptina 9MT024
NanoVesta board plugged into location #1. It is also possible to plug a Panasonic MN34041 NanoVesta board or an
Aptina AR0331 NanoVesta board into sensor location #1. However, for either of these sensors, the MachXO2
device will need to be reprogrammed.
The configuration options described below require the user to make some modifications and changes to the
MachXO2 Dual Sensor Interface Board. Use caution when making any of these changes.
Dual Image Sensor HiSPi Configuration
The MachXO2 Dual Sensor Interface Board supports two image sensors that can be merged to form one image.
The two sensors are the 9MT024 NanoVesta boards. To support the dual sensor HiSPi format, the following modi-
fications need to be made. In locations J2 and J10, zero ohm resistors tie pins 2 and 3 together. Both resistors
should be removed. Once this is complete, on both J2 and J10, pins 1 and 2 should be shorted and pins 3 and 4
should be shorted. Inserting zero ohm resistors is the recommended method to do this. Once these changes are
made and two 9MT024 NanoVesta boards are inserted, then the MachXO2 needs to be reprogrammed. See the
Configuring/Programming the DSIB
On both 9MT024 NanoVesta boards, it is important to ensure that jumper J2 has a jumper to short pins 2 and 3.
This J2 jumper ensures that the same clock is driven to both sensors. No other jumpers should be on the 9MT024
NanoVesta board.
Lastly, note that when the dual image sensor HiSPi configuration is made to the DSIB, no Panasonic MN34041
sensor can be supported. Neither sensor location can accept a Panasonic MN34041 NanoVesta board. To support
NanoVesta
Sensor #2
Connectors
section of this document for further details.
ISSI SDRAM
LEDs
5
MachXO2 PLD
FTDI
USB
MachXO2 Dual Sensor Interface Board
Connector
TI IPNC
NanoVesta
Sensor #1
Connectors
User’s Guide