DSD Report

Introduction of Actel FPGA

Outline

• Overview• Actel FPGA Characteristic• Actel FPGA Architecture• Actel FPGA Application

Overview

• SRAM vs. Flash• Fuse vs. Anti-fuse

FPGA

• Introduction To FPGA

SRAM

• Advantage:– Re-programmable (erasable)– Faster (than Flash)

• Disadvantage:– Volatile– Extra ROM– Need time for reading programs from ROM– Poor Information Security

Flash

• Advantage:– Re-programmable (erasable)– Non-volatile– Information Security

• Disadvantage:– Slower (than SRAM)

Fuse

• Resistance changes from Low to High when high voltage

• Programmed only once

Anti-fuse

• Resistance changes from High to Low when high voltage

• Require a very small area– More connections than others technologies

• Programmed only once

Actel FPGA Characteristic

• Anti-fuse• Flash

Actel FPGA Architecture(AX1000)

Interconnection Fabric

Logic Module

Horizontal Track

Vertical Track

Anti-fuse

Actel FPGA Architecture

Actel FPGA ArchitectureC-Cell

Actel FPGA ArchitectureR-Cell

Actel FPGA Application

• Space• Military