DB43 LatticeECP2 Daughter Board

Frozen Content

Altium's LatticeECP2™ daughter board DB43 provides an LFE2-35SE-5FN672C device, as well as a range of on-board memories available for use by a design running within that device.

The DB43 has the following features:

  • LatticeECP2 FPGA (LFE2-35SE-5FN672C)
  • On-board memories available for use by FPGA design:
     
    • 256K x 32-bit common-bus SRAM (1MByte)
    • 16M x 32-bit common-bus SDRAM (64MByte)
    • 16M x 16-bit common-bus Flash memory (32MByte)
    • Dual 256K x 16-bit independent SRAM (512KByte each)
       
  • 1-Wire® memory device used to store board ID and related information
  • Three 100-way connectors for attachment to NB2DSK01 motherboard. These connectors provide:
     
    • Interface to resources on the NB2DSK01 motherboard and plugged-in peripheral boards
    • SPI bus interface
    • I2C bus interface
    • 1-Wire bus interface
    • JTAG, power and additional control lines from the motherboard.


Figure 1. Altium's LatticeECP2 daughter board DB43.

General Board Resources

Target FPGA Device (LFE2-35SE-5FN672C)

Resources Accessible from an FPGA Design

The DB43 has a variety of memory resources individually wired to target daughter board FPGA I/O pins.


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