Intel C2550 FH8065401488912 Data Sheet
Product codes
FH8065401488912
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
283
Volume 2—Universal Serial Bus (USB) 2.0—C2000 Product Family
USB Over-Current Protection
14.13
USB Over-Current Protection
The SoC provides one over-current indicator pin,
, that is shared across the
four USB ports. The pin is an active-low, 3.3V signal and is not 5V tolerant. It is
important that:
• All the USB ports routed out of the package must have Over-Current (OC)
protection. The system BIOS ensures all used ports have OC protection.
• Unused USB Ports on the system (not routed out from the package) do not have OC
pins assigned to them.
14.14
Register Map
Figure 14-4. USB Register Map
Memory
Space
USB MMIO
Registers
IO Space
MBAR
USB PCI
Registers
D:22,F:0
EHCI
Extended
Capabilities
EHCI Extended
Capabilities
Pointer
Periodic and
Asynchronous
Schedules
Bus 0
Core
CPUs
PCI
ECAM
(Mem)
PCI
CAM
(I/O)
SATA 6Gb/s
D:24,F:0
SMBus
D:19,F:0
USB
D:22,F:0
SATA 3Gb/s
D:23,F:0
PCIe* Port 1
D:1,F:0
PCIe Port 2
D:2,F:0
PCIe Port 3
D:3,F:0
PCIe Port 4
D:4,F:0
Gb
E D:2
E D:2
0
Port0 F:0
Port1 F:1
Port2 F:2
Port3 F:3
Port1 F:1
Port2 F:2
Port3 F:3
SMB
F:3
PCU
D:31
LPC
F:0
Configuration
Space Access
SoC System
Agent
D:0,F:0
RAS
D:14,F:0
RCEC
D:15,F:0