Signal Description
2.10
USB Interface
Table 2-10. USB Interface Signals
Typ
Name
e
Description
Universal Serial Bus Port [1:0] Differential: These differential
pairs are used to transmit Data/Address/Command signals for ports 0
and 1. These ports can be routed to UHCI controller #1 or the EHCI
controller #1.
USBP0P,
USBP0N,
USBP1P,
USBP1N
I/O
NOTE: No external resistors are required on these signals. The Intel
ICH10 integrates 15 kΩ pull-downs and provides an output
driver impedance of 45 Ω which requires no external series
resistor.
Universal Serial Bus Port [3:2] Differential: These differential
pairs are used to transmit data/address/command signals for ports 2
and 3. These ports can be routed to UHCI controller #2 or the EHCI
controller #1.
USBP2P,
USBP2N,
I/O
USBP3P,
USBP3N
NOTE: No external resistors are required on these signals. The ICH10
integrates 15 kΩ pull-downs and provides an output driver
impedance of 45 Ω which requires no external series resistor.
Universal Serial Bus Port [5:4] Differential: These differential
pairs are used to transmit Data/Address/Command signals for ports 4
and 5. These ports can be routed to UHCI controller #3 or the EHCI
controller #1.
USBP4P,
USBP4N,
I/O
USBP5P,
USBP5N
NOTE: No external resistors are required on these signals. The ICH10
integrates 15 kΩ pull-downs and provides an output driver
impedance of 45 Ω which requires no external series resistor.
Universal Serial Bus Port [7:6] Differential: These differential
pairs are used to transmit Data/Address/Command signals for ports 6
and 7. These ports can be routed to UHCI controller #4 or the EHCI
controller #2.
USBP6P,
USBP6N,
I/O
USBP7P,
USBP7N
NOTE: No external resistors are required on these signals. The ICH10
integrates 15 kΩ pull-downs and provides an output driver
impedance of 45 Ω which requires no external series resistor.
Universal Serial Bus Port [9:8] Differential: These differential
pairs are used to transmit Data/Address/Command signals for ports 8
and 9. These ports can be routed to UHCI controller #5 or the EHCI
controller #2.
USBP8P,
USBP8N,
I/O
USBP9P,
USBP9N
NOTE: No external resistors are required on these signals. The ICH10
integrates 15 kΩ pull-downs and provides an output driver
impedance of 45 Ω which requires no external series resistor.
56
Datasheet
INTEL [ INTEL ]
