PPC460EX-SUB800N AMCC, PPC460EX-SUB800N Datasheet - Page 63

• Manufacturer Part Number: PPC460EX-SUB800N
• Manufacturer: AMCC

Revision 1.19 – June 17, 2009
When the PCI Express 1 interface is unused terminate as follows:
Signals Multiplexed with GPIO:
By default after reset, signals shared with GPIO pins are configured as GPIO receivers. Termination however, is
not needed if the GPIO during initialization are configured as outputs. To configure as drivers, set and clear the
appropriate bits in the GPIOn_ODR, GPIOn_TCR and GPIOn_OR registers as described in the GPIO chapter of
the user’s manual.
AMCC Proprietary
Preliminary Data Sheet
• PCIE0Rx0[SATA0Rx0] - Pull down through a 1k Ω resistor to GND.
• PCIE0Tx0[SATA0Tx0] - Leave unconnected.
• PCIE0Tx0[SATA0Tx0] - Leave unconnected.
• PCIE1AVReg - Leave unconnected.
• PCIE1CalRN - Leave unconnected.
• PCIE1CalRP - Leave unconnected.
• PCIE1RefClk - Pull-down through a 1k Ω resistor to GND.
• PCIE1RefClk - Pull-down through a 1k Ω resistor to GND.
• PCIE1Rx0:3 - Individually pull-down each signal through a 1k Ω resistor to GND.
• PCIE1Rx0:3 - Individually pull-down each signal through a 1k Ω resistor to GND.
• PCIE1Tx0:3 - Leave unconnected.
• PCIE1Tx0:3 - Leave unconnected.
460EX – PPC460EX Embedded Processor
63