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LatticeSC PCI Express x4 Evaluation Board
Lattice Semiconductor
User’s Guide
Introduction
This user’s guide describes the LatticeSC PCI Express x4 Evaluation Board featuring the LatticeSC
LFSCM3GA80EP1-6FC1152C FPGA device. This stand-alone evaluation PCB provides a functional platform for
development and rapid prototyping of applications that require high-speed SERDES interfaces and/or PCI Express
protocols.
The evaluation board includes provisioning to connect high-speed SERDES channels via SMA connectors to test
and measurement equipment. The board is manufactured using standard FR4 dielectric and through-hole vias.
The nominal impedance is 50-ohm for single-ended traces and 100-ohm for differential traces.
The board has several debugging and analyzing features for complete user evaluation of the LatticeSC device. This
user’s guide is intended to be referenced in conjunction with evaluation design tutorials to demonstrate the Lattic-
eSC FPGA.
Figure 1. LatticeSC PCI Express x4 Evaluation Board
DDR2
SDRAM
LVDS I/O
PCI Express x4
Edge
Mictor Connector
for Logic Analyzer
LatticeSC-80
1152 fpBGA
Power
Supplies
PCI Express
Cable Connectors
SERDES I/O
Test LEDs
Clock I/O
Features
• LatticeSCM-80 device in 1152 fcBGA package
• SERDES interface to x4 PCI Express edge fingers
• Two x1 PCI Express cable connections
• DDR2 memory device
• SERDES high-speed interface SMA test points and clock connections
• Power connections and power sources
• ispVM
®
programming support
