Description

DESPI eSPI IP Core – Configurable High-Speed eSPI Target IP for FPGA and ASIC Designs

The DESPI IP Core is a fully configurable Enhanced Serial Peripheral Interface (eSPI) Target IP, compliant with the eSPI Base Specification Revision 1.6. It is designed for high-performance embedded systems, enabling reliable and efficient communication between microcontrollers, embedded controllers (EC), and eSPI-enabled peripherals in Intel-based platforms.

As a modern replacement for the legacy LPC bus, the DESPI IP Core delivers high-speed serial communication with support for single, dual, and quad SPI modes. It operates at serial clock frequencies up to 66 MHz, ensuring low-latency data transfer and optimized system throughput.

Its scalable and flexible architecture allows seamless integration into FPGA and ASIC designs, supporting both single and multi-Target configurations across a wide range of System-on-Chip (SoC) applications.

Key Features

  • eSPI Target IP compliant with eSPI Base Specification Rev. 1.6

  • Configurable Target mode (single or multiple Target devices) for complex system architectures (looking for an eSPI Controller? here it is)

  • High-speed SPI interface up to 66 MHz for low-latency communication

  • Support for Single, Dual, and Quad SPI transfers to maximize bandwidth

  • Large, highly configurable shared memory buffer enables efficient and flexible frame and data storage to fit any needs.

  • Customizable peripheral channels, including memory-mapped I/O, Virtual Wire signals, and event handling
  • Technology-agnostic RTL design compatible with all major FPGA and ASIC vendors

  • Optimized for integration into Intel-based systems and embedded controller environments

Typical Applications

  • Embedded Controllers (EC) in Intel CPU platforms

  • FPGA and ASIC-based SoC designs requiring eSPI connectivity

  • High-speed data acquisition systems and industrial peripherals

  • Multi-Target microcontroller systems with low-latency communication requirements

  • Replacement of legacy LPC interfaces in modern hardware architectures

The DESPI eSPI IP Core is fully customizable to meet specific system and integration requirements, making it a reliable solution for next-generation embedded systems and high-performance digital designs.

ALL DCD’S IP CORES ARE TECHNOLOGY AGNOSTIC, ENSURING 100% COMPATIBILITY WITH ALL FPGA AND ASIC VENDORS.

For further details, email info@dcd-semi.com.

Media

Key features

  • Compliant with eSPI base specification as defined in Enhanced Serial Peripheral Interface (eSPI) Specification rev.1.6

    • Supports Slave Mode
    • Supports Single, Dual and Quad modes
    • Supports TX and RX operation as per specs
    • Support for
      • Command Phase
      • Turn-Around Phase
      • Response Phase
    • Baud Rate selection
    • Slave Triggered Transactions
    • Power management Event
    • Interrupts and Alerts
    • In-band reset
    • Support for multiple channels
      • Peripheral channel
      • Virtual wire Channel
      • OOB Message (Tunneled SMBus) Channel
      • Run-time Flash Access Channel
    • Various errors detection
    • CRC Checking and generation
    • The simple interface allows easy connection to microcontrollers
    • Fully synthesizable, static synchronous design with no internal tri-states
  • Available system interface wrappers:
    • AMBA – APB / AHB / AXI Bus
    • Altera Avalon Bus
    • Xilinx OPB Bus

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