AC82G41SLGQ3 Datasheet, PDF (538/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Functional Description
13.5.2.4 Display Port
Display Port is a digital communication interface that utilizes differential signalling to
achieve a high bandwidth bus interface designed to support connections between PCs
and monitors, projectors, and TV displays. Display port is also suitable for display
connections between consumer electronics devices such as high definition optical disc
players, set top boxes, and TV displays.
A Display Port consists of a Main Link, Auxiliary channel, and a Hot Plug Detect signal.
The Main Link is a uni-directional, high-bandwidth, and low latency channel used for
transport of isochronous data streams such as uncompressed video and audio. The
Auxiliary Channel (AUX CH) is a half-duplex bi-directional channel used for link
management and device control. The Hot Plug Detect (HPD) signal serves as an
interrupt request for the sink device.
Figure 12. Display Port Overview
Source Device
Main Link
(Isochronous Streams)
Sink Device
Display Port
Tx
Aux Channel
(Link/Device Management)
Hot Plug Detect
(Interrupt Request)
Display Port
Rx
13.5.2.5
13.5.2.6
Auxiliary Channel (AUX CH)
The Auxiliary channel consists of an AC-coupled, bi-directional differential pair,
providing a data rate of 1 Mbps. It is used for link management and device control (that
is, for transmitting control and status information).
AUX CH is multiplexed to the PCI Express Rx lanes.
PEG Mapping of digital display signals
Table 36 shows the PEG mapping of HDMI(DVI), Display Port, and SDVO signals.
538
Datasheet