Intel C2350 FH8065401488914 Data Sheet
Product codes
FH8065401488914
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
265
Volume 2—Universal Serial Bus (USB) 2.0—C2000 Product Family
Architectural Overview
The Enhanced Host Controller (EHC) appears to the software as a PCI Express* Root
Complex Integrated Endpoint.
The controller is discovered as bus 0, device 22, function 0.
The Device ID is 0x1F2C.
The data structures in main memory are described in the rest of this section. For
details, see Section 3 and Appendix B of the Enhanced Host Controller Interface
Specification for Universal Serial Bus, Revision 1.0.
The EHC does not have a companion OHCI/UHCI host controller which use single
linked-lists in memory for scheduling. The EHC separates the linked list into a Periodic
List and a Asynchronous List.
The relationship of the PCI Configuration and Capabilities registers, the Memory-
Mapped I/O (MMIO) registers, and schedule information are in
Figure 14-3. Software Interface Register Structure
PCI Class
Code, etc.
USB Base
Address
PCI
Capability
Structures
EHCI
Extended
Capabilities
Capability
Registers
Operational
Registers
PCI Configuration
Registers
Memory-Based
I/O Registers
Shared Memory
Schedule
Periodic
Schedule
Asynchronous
Schedule
Periodic List