Техническая Спецификация для Intel C2550 FH8065401488912
Модели
FH8065401488912
Volume 3—Signal Names and Descriptions—C2000 Product Family
USB 2 Signals
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 3 of 3
September 2014
606
Order Number: 330061-002US
31.15
USB 2 Signals
Table 31-18. USB 2 Signals
Signal Name
I/O
Type
I/O Buffer
Type
Ball
Count
Internal
Resistor
PU/PD
External
Resistor
PU/PD
Power
Rail
Description
USB_DP[3:0]
I/O
LV DIFF
4
V1P0A
Universal Serial Bus Port [3:0]
Differential: These differential
pairs are used to transmit
Data/Address/Command
signals for ports 0, 1, 2, and
3.
USB_DN[3:0]
I/O
LV DIFF
4
V1P0A
Universal Serial Bus Port [3:0]
Differential: These differential
pairs are used to transmit
Data/Address/Command
signals for ports 0, 1, 2, and
3.
USB_REFCLKN
I
LV DIFF
1
V1P0A
USB Clock 96 MHz.
Differential reference input
clock from an external clock
chip.
USB_REFCLKP
I
LV DIFF
1
V1P0A
USB Clock 96 MHz.
Differential reference input
clock from an external clock
chip.
USB_OC0_B/
GPIO_SUS11
I
CMOS_V3P3
1
20K, PU
V3P3A
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. These
signals are NOT 5V tolerant. If
the USB_OC0_B interface is
not used, the signal can be
used as GPIO SUS Port 11.
USB_RCOMPO
O
Analog
1
EXT PD
V1P0A
USB Resistor Bias. Analog
connection point for an
external resistor. Short the
USB_RCOMPO and the
USB_RCOMPI pins together
and connect to a 44.745-Ω
±1% resistor to ground.
USB_RCOMPI
I
Analog
1
EXT PD
V1P0A
USB Resistor Bias
Complement. Analog
connection point for an
external resistor. See the
description for USB_RCOMPO.
USB_OBSP
O
Analog
1
V1P0A
Reserved for Intel. Make no
board connection to this pin.
VSSA_USB
NA
NA
2
NA
The platform board must
connect to VSS.
TOTAL
16