Intel EP80579 Manual page 177

Universal Serial Bus (USB) Interface—Intel
• USBp[1:0], USBn[1:0] - These signals have integrated 15kW pull-down resistors.
Unused USB ports can be left as no connect.
• OC[1:0]# - If these signals are not used, pull them up to VCCPSUS with an 10 kΩ
resistor.
• USB_RBIASn, USB_RBIASp - See
• CLK48 - The USB Clock 48 MHz is referenced in
page
®
Intel EP80579 Integrated Processor Product Line
Order Number: 320068-005US
®
EP80579 Integrated Processor Product Line
102.
Section 12.2.3
Section 8.2.5, "CLK48 Group" on
May 2010
177