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eSPI Master
Design IP
Overview

SmartDV’s eSPI (Enhanced Serial Peripheral Interface) Master IP is a silicon-proven solution that enables reliable and efficient communication with multiple slave devices over a low-pin-count serial bus. Fully compliant with the Intel eSPI specification, it supports key features such as virtual wire signaling, out-of-band messaging, and peripheral channel access, making it ideal for power-optimized system designs.

Designed for flexibility, the IP core is highly configurable to meet specific design requirements, supporting both ASIC and FPGA implementations while optimizing for area, power, and performance. With built-in support for legacy SPI fallback, robust error handling, and advanced configuration options, SmartDV’s eSPI Master IP is well-suited for a wide range of PC, server, and embedded applications.

eSPI Master
Benefits
  • Supports multiple channels: Peripheral, Virtual Wires, OOB Message, and Runtime Flash Access
  • Compatible with various system topologies:
    • Single Master – Single Slave
    • Single Master – Multiple Slaves
  • Supports various reset types:
    • eSPI reset from Master to Slave
    • eSPI reset from Slave to Master
    • In-band reset command
  • Operates in Single, Dual, and Quad modes
Compliance and Compatibility
  • eSPI Base Specification Rev.1.5
  • SPI Block Guide 4.01 Standard
  • All major EDA synthesis, simulation, linting flows