IXP45X INTEL [Intel Corporation], IXP45X Datasheet - Page 71

• Manufacturer Part Number: IXP45X
• Description: Product Line of Network Processors
• Manufacturer: INTEL [Intel Corporation]

Package Information
Table 20.
August 2006
71
USB_DPOS
USB_DNEG
USB_HPOS
USB_HNEG
Note:
†
††
Name
This table discusses all features supported on the Intel
see
For a legend of the Type codes, see
Please refer to the Intel® IXP45X and Intel® IXP46X Product Line of Network Processors Hardware Design Guidelines for additional board design details.
Table 1 on page
USB Host/Device Interfaces (Sheet 1 of 2)
Reset
Power
on
Z
Z
Z
Z
†
13.
Reset
Z
Z
Z
Z
†
Software
Enables
Normal
Reset
After
Until
VB
VB
VB
VB
Table 8 on page
Software
Possible
Configur
Enables
ations
After
VB
VB
VB
VB
43.
®
IXP45X and Intel
Type
I/O
I/O
I/O
I/O
†
Positive signal of the differential USB receiver/driver for the USB device interface.
Note:
When this interface/signal is enabled and is not being used in a system design, the interface/signal
should be pulled low with a 10-KΩ resistor. When this interface is disabled via the USB Device soft fuse
(refer to Expansion Bus Controller chapter of the Intel
Network Processors Developer’s Manual) and is not being used in a system design, this interface/signal
is not required for any connection.
Negative signal of the differential USB receiver/driver for the USB device interface.
Note:
When this interface/signal is enabled and is not being used in a system design, the interface/signal
should be pulled low with a 10-KΩ resistor. When this interface is disabled via the USB Device soft fuse
(refer to Expansion Bus Controller chapter of the Intel
Network Processors Developer’s Manual) and is not being used in a system design, this interface/signal
is not required for any connection.
Positive signal of the differential USB receiver/driver for the USB host interface.
Note:
When this interface/signal is enabled and is not being used in a system design, the interface/signal
should be pulled low with a 10-KΩ resistor. When this interface is disabled via the USB Device soft fuse
(refer to Expansion Bus Controller chapter of the Intel
Network Processors Developer’s Manual) and is not being used in a system design, this interface/signal
is not required for any connection.
Negative signal of the differential USB receiver/driver for the USB host interface.
Note:
When this interface/signal is enabled and is not being used in a system design, the interface/signal
should be pulled low with a 10-KΩ resistor. When this interface is disabled via the USB Device soft fuse
(refer to Expansion Bus Controller chapter of the Intel
Network Processors Developer’s Manual) and is not being used in a system design, this interface/signal
is not required for any connection.
®
This pin requires an 18Ω external series resistor. This resistor is located after the pin, but before
the pull-down resistor.
This pin requires an 18Ω external series resistor. This resistor is located after the pin, but before
the pull-down resistor.
This pin requires an 20Ω external series resistor. This resistor is located after the pin, but before
the pull-down resistor.
This pin requires an 20Ω external series resistor. This resistor is located after the pin, but before
the pull-down resistor.
IXP46X Product Line of Network Processors. For details on feature support listed by processor,
Intel
®
IXP45X and Intel
Description
®
IXP46X Product Line of Network Processors Datasheet
®
®
®
®
IXP45X and Intel
IXP45X and Intel
IXP45X and Intel
IXP45X and Intel
Document Number:
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IXP46X Product Line of
IXP46X Product Line of
IXP46X Product Line of
IXP46X Product Line of
306261-004US