Endpoint
 Root Complex
 Dual Mode
 Switch Port
 AMBA Bridges(AHB/AXI)

 x1
 x2
 x4
 x8
 x16

 SATA Host
 SATA Device
 SATA Bridge(AHB/AXI)

 DDR I Controller
 DDR II Controller
 DDR III Controller
 DDR Bridge(AHB/AXI)