© 2011 Advanced Micro Devices, Inc.
46136 AMD RX881 Databook 1.40
Proprietary
3-1
Chapter 3
Pin Descriptions and Strap Options
This chapter gives the pin descriptions and the strap options for the RX881. To jump to a topic of interest, use the
following list of hyperlinked cross references:
“RX881 Pin Assignment Top View” on page 3-2
“Interface Block Diagram” on page 3-4
“CPU HyperTransport™ Interface” on page 3-5
“PCI Express® Interfaces” on page 3-5:
“1 x 16 Lane Interface for External Graphics” on page 3-5
“A-Link Express II Interface for Southbridge” on page 3-5
“6 x 1 Lane Interface for General Purpose External Devices” on page 3-6
“Miscellaneous PCI Express® Signals” on page 3-6
“Clock Interface” on page 3-6
“Power Management Pins” on page 3-7
“Miscellaneous Pins” on page 3-7
“Power Pins” on page 3-8
“Ground Pins” on page 3-9
“Strapping Options” on page 3-9