Intel(r) G45 Programmer's Reference Manual

Digital Enterprise Group (DEG) & Software Solutions Group (SSG)
________________________________

FROM:

Angela Gill (Visual Computing Group), and Keith Packard (Open Source Technology Center)

DATE:

April 15, 2009

RE:

Intel(r) G45 Programmer's Reference Manual

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We are pleased to announce that the Intel(r) G45 Express Chipset [Graphics and Memory Controller
Hub-GMCH] Programmer's Reference Manual (PRM) is now publicly available!  The PRM resides on the
Linux Graphics website (http://intellinuxgraphics.org/index.html) as well as the Visual Computing
Training website (http://moss.amr.ith.intel.com/sites/VCG/VCG%20Training/de...).

The PRM describes the architectural behavior and programming environment of the chipset and
graphics devices.  The GMCH's Graphics Controller (GC) contains an extensive set of registers and
instructions for configuration, 2D, 3D, and Video systems. The PRM describes the register,
instruction, and memory interfaces and the device behaviors as controlled and observed through
those interfaces.  The PRM also describes the registers and instructions and provides detailed
bit/field descriptions.  This information is critical to the development and maintenance of Intel
graphics drivers for this hardware.

Many thanks to the Graphics Engineering team and the Open Source Technology Center for their work
in identifying the appropriate material to include in the PRM.  We would like to recognize Patricia
Langstraat for her technical writing prowess as well as Eric Anholt for his help in reviewing the
draft PRM material.  Others on Jeff Bock's team were invaluable in their efforts to ensure this PRM
contains useful information for the open source community.