G35 datasheet(26/351 Pages) INTEL

26 / 351 page

Introduction

Datasheet

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Automatic discovery, negotiation, and training of link out of reset

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Supports traditional PCI style traffic (asynchronous snooped, PCI ordering)

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Supports traditional AGP style traffic (asynchronous non-snooped, PCI Express-

relaxed ordering)

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Hierarchical PCI-compliant configuration mechanism for downstream devices (i.e.,

normal PCI 2.3 Configuration space as a PCI-to-PCI bridge)

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Supports “static” lane numbering reversal. This method of lane reversal is

controlled by a Hardware Reset strap, and reverses both the receivers and

transmitters for all lanes (e.g., TX[15]->TX[0], RX[15]->RX[0]). This method is

transparent to all external devices and is different than lane reversal as defined in

the PCI Express Specification. In particular, link initialization is not affected by

static lane reversal.

1.3.5

Graphics Features

The GMCH provides an integrated graphics device (IGD) delivering cost competitive

3D, 2D and video capabilities. The GMCH contains an extensive set of instructions for

3D operations, 2D operations, motion compensation, overlay, and display control. The

GMCH’s video engines support video conferencing and other video applications. The

GMCH uses a UMA configuration with up to 256MB of DVMT for graphics memory. The

GMCH also has the capability to support external graphics accelerators via the PCI

Express Graphics (PEG) port but cannot work concurrently with the integrated

graphics device. High bandwidth access to data is provided through the system

memory port.

1.3.6

SDVO and Analog Display Features

The GMCH provides interfaces to a progressive scan analog monitor and two SDVO

ports. For the GMCH, the SDVO ports are multiplexed with PCI Express x16 graphics

port signals. The GMCH supports two multiplexed SDVO ports that each drive pixel

clocks up to 270 MHz. The SDVO ports can each support a single-channel SDVO

device. If both ports are active in single-channel mode, they can have different display

timing and data.

The digital display channels are capable of driving a variety of SDVO devices (e.g.,

TMDS, TV-Out). Note that SDVO only works with the Integrated Graphics Device

(IGD). The GMCH is capable of driving an Advanced Digital Display (ADD2) card or

Media Expansion Card. The Media Expansion Card adds video-in capabilities. The

GMCH is compliant with DVI Specification 1.0. When combined with a DVI compliant

external device and connector, the GMCH has a high-speed interface to a digital

display (e.g., flat panel or digital CRT).

The GMCH is compliant with HDMI specification 1.1. When combined with a HDMI

compliant external device and connector, the external HDMI device can support

standard, enhanced, or high-definition video, plus multi-channel digital audio on a

single cable.

G35 Datasheet(PDF) 26 Page - Intel Corporation

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