Intel C2518 FH8065501516710 Data Sheet

Product codes
FH8065501516710
Page of 746
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