eSPI

Enhanced SPI Master Bus Functional Model	https://github.com/akaeba/eSpiMasterBfm
Intel/Altera eSPI to LPC Bridge Core	https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_embedded_ip.pdf
Intel eSPI Specification	https://www.intel.com/content/dam/support/us/en/documents/software/chipset-software/327432-004_espi_base_specification_rev1.0_cb.pdf
SmartDV eSPI Slave IIP	https://www.smart-dv.com/iip/espi_slave.html
eSPI protocol	https://www.prodigytechno.com/espi-protocol