Lattice ispGDX2 Devices - 38 Gbps ISP Switch with Advanced System Features

The ispGDX2 family is Lattice's next generation in-system programmable (ISP) high performance digital crosspoint switch for high-speed bus switching and interfacing with bandwidth of up to 38Gbps. This family combines a flexible switching architecture with advanced high speed serial I/O (sysHSI blocks), sysCLOCK PLLs, and sysIO interfaces to meet the needs of today's high-speed systems. A multiplexer based architecture and on chip control logic facilitate the high performance implementation of common switching functions. Devices in the family can operate at 3.3, 2.5 & 1.8V core Voltage.

The ispGDX2 family is available in two options. The standard device supports SYSHSI availability for ultra fast serial communications and the "E-Series", a high performance, low-cost device with no sysHSI functionality.

Features

High Performance Bus Switching

• High Bandwidth
  • Up to 12.8 Gbps (SERDES)
  • Up to 38 Gbps (without SERDES)
• Up to 16 (15X10) FIFOs for data buffering
• High-speed Performance
  • fMAX = 360 MHz, tPD = 3.0ns
  • tCO = 2.9ns , tS = 2.0ns
• I/O intensive: 64 to 256 I/Os
• Expanded MUX capability up to 188:1 MUX

sysCLOCK PLL

• Frequency synthesis and skew management
• Clock shifting, multiply and divide capability
• Clock shifting up to +/-2.35ns in 335ps steps
• Up to four PLLs

sysIO Interfacing

• LVCMOS 1.8, 2.5, 3.3 and LVTTL support
• SSTL 2/3 Class I and II support
• HSTL Class I, III and IV support
• GTL+, PCI-X support
• LVPECL, LVDS and Bus LVDS support
• Hot socketing
• Programmable drive strength
• sysHSI Blocks provide up to 16 High Speed Channels
  • Serializer/de-serializer (SERDES) included
  • Built-in Clock Data Recovery (CDR)
  • 800 Mbps per channel
  • LVDS differential support
  • 10B/12B support
    • Encoding / decoding
    • Bit alignment
    • Symbol alignment
  • 8B/10B support
    • Bit alignment
    • Symbol alignment
  • Source synchronous capability
• Two options available
  • High performance sysHSI (Standard part number)
  • Low-cost, no sysHSI ("E-Series" part number)

Flexible Programming & Testing

• 1.8/2.5/3.3V Power Supply Options
• JTAG Boundary Scan Test & ISP

Architecture

The diagrams below shows the major blocks of the ispGDX2-64 device.

Click diagrams to view enlargements.

ispGDX2-64 Top Level Diagram	sysCLOCK PLL
sysHSI	GDX Block
sysIO	MRB Block

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