Interfaces
34
Datasheet, Volume 1
2.4.2
Processor Graphics Display
The Processor Graphics controller display pipe can be broken down into three
components:
• Display Planes
• Display Pipes
• Embedded DisplayPort* and Intel
®
FDI
2.4.2.1
Display Planes
A display plane is a single displayed surface in memory and contains one image
(desktop, cursor, overlay). It is the portion of the display hardware logic that defines
the format and location of a rectangular region of memory that can be displayed on
display output device and delivers that data to a display pipe. This is clocked by the
Core Display Clock.
2.4.2.1.1
Planes A and B
Planes A and B are the main display planes and are associated with Pipes A and B
respectively. The two display pipes are independent, allowing for support of two
independent display streams. They are both double-buffered, which minimizes latency
and improves visual quality.
2.4.2.1.2
Sprite A and B
Sprite A and Sprite B are planes optimized for video decode, and are associated with
Planes A and B respectively. Sprite A and B are also double-buffered.
Figure 2-7. Processor Display Block Diagram
Memory
H
o
s
t
Int
e
rfa
c
e
(Ou
tside o
f D
ispla
y
En
g
ine)
Display
Arbiter
Display
Planes
& VGA
Display
Pipe A
Display
Pipe B
Display
Port
Control
A
Display
Port
Control
B
Intel
FDI
(Tx
Side)
eDP
DMI
P
CH D
is
p
lay
En
g
ine