Circuit Descriptions
7.
7.5
HDMI
Refer to figure
for the application.
Figure 7-7 HDMI input configuration
The following HDMI connector can be used:
•
HDMI 1: HDMI input (TV digital interface support HDCP)
with digital audio / PC DVI input/ARC
•
HDMI side: (TV digital interface support HDCP) with digital
audio / PC DVI input.
•
+5V detection mechanism
•
Stable clock detection mechanism
•
Integrated EDID
•
HPD control
•
Sync detection
•
TMDS output control
•
CEC control
7.6
Video and Audio Processing - Marvell
88DE3214
The Marvell 88DE3214 is the main audio and video processor
(or System-on-Chip) for this platform. It has the following
features:
•
Worldwide multi-standard analog TV demodulator
•
A muti-standard video decoder
•
A transport de-multiplexer
•
HDMI 2.0 receiver with 3D support
•
2D/3D converter
•
Rich format audio codec
•
powerful Quad-Core ARM Cortex A9 system
•
Local dimming(LED backlight)
At the core of the 88DE3214 device is a quad-core ARM Cortex
A9™ and NEON CPU subsystem with 1MB L2 cache,the
88DE3214 includes the Vivante® OpenCL and OpenGL
ES-compliant GC3000 3D engine and GC428 2D composite
engine,supports a combination of concurrent 4Kx2K and 1080p
decodes/encodes. Decoded video is post-processed by
Marvell’s award-winning Qdeo™ pipeline,performing 3D
de-interlacing, scaling, noise reduction,compression artifact
reduction,detail enhancement,intelligent color remapping,
Qdeo™ true color,adaptive contrast enhancement,and
2D-to-3D processing.
For a functional diagram of the Marvell 88DE3214, refer
to
7.7
Ambilight
•
The power supply voltage 12V
•
Ambilight will adjust the TV lights around according to the
picture
Changing color and brightness in order to create a sense of the
effect of be personally on the screen.
19810_205.eps
Marvell BG2+NT72324
HDMI1
HDMI2
HDMI 4 SIDE
HDMI 3 SIDE
X283
X284
X285
X286
RX
RX
RX
RX
I2C
I2C
I2C
I2C