A type0 Root Complex Integrate End-

A type0 Root Complex Integrate End-point (RCiEP) and a type0 Root Complex Event Collector (RCEC) are presented in the system and used as upstream devices for the Accelerator. CMN and RCiEP use AXI bus to connect with each other. For outbound transaction, AXI from HN-I node is converted to 32-bit AHB bus and go through an AHB mux. The AHB mux redirect the traffic to accelerator’s task queue, RCiEP registers and RCEC registers. For inbound transaction, a 256-bit AXI(ACE-Lite) bus and a 512-bit AXI(ACE-Lite) bus from Accelerator are merged with AXI bus from RCEC and then connect to CMN RN-I node. There is a dedicated interrupt interface between Accelerator and RCEC for interrupt and error reporting.