Intel; Q77 Express Chipset; Direct Media Interface (Dmi); Display Interfaces - Intel DQ77MK User Manual

Intel Desktop Board DQ77MK Technical Product Specification
®
1.5

Intel

Intel Q77 Express Chipset with Intel Flexible Display Interconnect (Intel FDI) and
Direct Media Interface (DMI) interconnect provides interfaces to the processor and the
display, USB, SATA, LPC, LAN, and PCI Express interfaces. The Intel Q77 Express
Chipset is a centralized controller for the board's I/O paths.
For information about
The Intel Q77 chipset
Resources used by the chipset
1.5.1

Direct Media Interface (DMI)

Direct Media Interface (DMI) is the chip-to-chip connection between the processor and
PCH. This high-speed interface integrates advanced priority-based servicing allowing
for concurrent traffic and true isochronous transfer capabilities.
1.5.2

Display Interfaces

Display is divided between the processor and the PCH. The processor houses the
memory interface, display planes, and pipes while the PCH has transcoder and display
interface or ports.
The PCH receives the display data over Intel FDI and transcodes the data as per the
display technology protocol and sends the data through the display interface.
®
1.5.2.1 Intel
Intel FDI connects the display engine in the processor with the display interfaces on
the PCH. The display data from the frame buffer is processed in the display engine of
the processor and sent to the PCH over the Intel FDI where it is transcoded as per the
display protocol and driven to the display monitor.
1.5.2.2 Digital Visual Interface (DVI-D)
The DVI-D port supports only digital DVI displays. The maximum supported resolution
is 1920 x 1200 at 60 Hz refresh (WUXGA). The DVI-D port is compliant with the
DVI 1.0 specification.
1.5.2.3 Digital Visual Interface (DVI-I)
The DVI-I port supports both digital and analog DVI displays. The maximum supported
resolution is 1920 x 1200 at 60 Hz refresh (WUXGA). The DVI port is compliant with
the DVI 1.0 specification. DVI analog output can also be converted to VGA using a
DVI-VGA converter.
Depending on the type of add-in card installed in the PCI Express x16 connector, the
DVI port will behave as described in Table 4.
24

Q77 Express Chipset

Refer to
http://www.intel.com/products/desktop/chipsets/index.htm
Chapter 2
Flexible Display Interconnect (Intel
®
FDI)