Intel C2518 FH8065501516710 Data Sheet

Product codes
FH8065501516710
Page of 746
Intel
®
 Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
263
Volume 2—Universal Serial Bus (USB) 2.0—C2000 Product Family
Signal Descriptions
14.1
Signal Descriptions
The signal description table has the following headings:
• Signal Name: The name of the signal/pin
• Direction: The buffer direction is either input, output, or I/O (bi-directional)
• Type: The buffer type found in 
• Description: A brief explanation of the signal function
14.2
Feature List
The Enhanced Host Controller (EHC) supports the following features:
• Compliant with the specification for USB 1.0, 1.1 and 2.0 (1.5 Mbps, 12 Mbps, 
480 Mbps).
— Supports all USB transactions: bulk, isochronous, interrupt, control.
• Supports an EHCI software host controller interface.
• All ports provided by a USB Rate Matching Hub (RMH) to support Full-Speed (FS) 
and Low-Speed (LS) USB devices.
• One debug port having full-speed transfer rates.
• Wake-up from G2 (S5) Soft Off back to the G0 (S0) working power state. 
• Asynchronous extended sleep.
• EHCI prefetch-based pause.
• Remote-suspend wake-up.
• Per-port USB disable.
Table 14-2. Signals
Signal Name
Direction / 
Type
Description
I/O
Universal Serial Bus Port 3:0 Differentials:
 Bus Data/Address 
Command Bus
I
Over-Current Indicator:
 This signal sets the corresponding bit in the 
USB controller to indicate that an over current condition has occurred. 
OC0 covers ports 0-3.
The OCMAP register for the USB refers to this input signal as OC1.
These signals are NOT 5V tolerant.
This signal is muxed and is used by other functions.
I
USB 96 MHz differential reference clock input
O
RCOMP OUT
I
RCOMP IN