Intel C2550 FH8065401488912 데이터 시트
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FH8065401488912
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
• 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)
• 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.
• 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.
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