Getac 9270D Service Manual page 109

4.8 USB Interface Signals –Table 2
Name
USBP6P,
USBP6N,
USBP7P,
USBP7N
USBP8P,
USBP8N,
USBP9P,
USBP9N
USBP10P,
USBP10N,
USBP11P,
USBP11N
Type
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.
I/O
NOTE: No external resistors are required on these signals. The
Ibex Peak 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.
I/O
NOTE: No external resistors are required on these signals. The
Ibex Peak integrates 15 kΩ pull-downs and provides an output
driver impedance of 45 Ω which requires no external series
resistor.
Universal Serial Bus Port [11:10] Differential: These
differential pairs are used to transmit Data/Address/Command
signals for ports 10 and 11. These ports can be routed to UHCI
controller #6 or the EHCI controller #2.
I/O
NOTE: No external resistors are required on these signals. The
Ibex Peak integrates 15 kΩ pull-downs and provides an output
driver impedance of 45 Ω which requires no external series
resistor.
Description