Intel C2518 FH8065501516710 Ficha De Dados
Códigos do produto
FH8065501516710
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
65
Volume 2—System Agent and Root Complex—C2000 Product Family
Root Complex
4.4
Root Complex
The root complex, also called the Root Fabric (RTF), implements the bus 0 interconnect
of a PCI Express* Root Complex. The root complex contains the internal Root Complex
Event Collector (RCEC). Only one PCI hierarchy is in the SoC.
4.4.1
Transaction Flow
SoC internal transactions flow through the root complex fabric simultaneously in the
upstream and downstream directions at full bandwidth. Peer-to-Peer (P2P) transaction
routing is also supported between the downstream root complex and I/O fabric ports.
P2P memory read/writes are supported. P2P source and destination ports cannot be the
same. P2P traffic consumes both upstream and downstream internal SoC bandwidth.
Peer-to-peer routing is only supported between the following:
• Integrated root port and another integrated root port.
• Integrated root port and an integrated endpoint device:
• Integrated root port and an integrated endpoint device:
— GbE controller
— SATA2 controller
— SATA3 controller
— USB controller
— SMBus controller #1
— Platform Controller Unit (PCU)
— SATA2 controller
— SATA3 controller
— USB controller
— SMBus controller #1
— Platform Controller Unit (PCU)
Peer-to-peer routing is not supported between an integrated endpoint device and
another integrated endpoint device.