Hdmi Receiver; Modes Of Operation; Hdmi Mux Mode; Hdmi Non-Mux Mode - Analog Devices ADV7850 Hardware Manual

7 HDMI RECEIVER

H P A _ A
H P A _ B
H P A _ C
H P A _ D
VDD_EEPROM
V R EG
R X A _ 5 V
R X B _ 5 V
R X C _ 5 V
R X D _ 5 V
E P _ M IS O / E P _ M O S I
E P _ C SB / E P _ S C K
V GA _ S D A / V GA _ S C L
D D C A _ S D A / D D C A _ S C L
D D C B _ S D A / D D C B _ S C L
D D C C _ S D A / D D C C _ S C L
D D C D _ S D A / D D C D _ S C L
RXA_C±
RXB_C±
RXC_C±
RXD_C±
RXA_0±
RXA_1±
RXA_2±
RXB_0±
RXB_1±
RXB_2±
RXC_0±
RXC_1±
RXC_2±
RXD_0±
RXD_1±
RXD_2±
A R C _ A
A R C _ B
A R C _C
A R C _ D

7.1 MODES OF OPERATION

The ADV7850 can operate in two modes
•

HDMI Mux Mode

•

HDMI Non-Mux Mode

HDMI Mux Mode
7.1.1
In HDMI Mux mode the HDMI data is passed directly from the RX to the TX. In this mode the ADV7850 supports up to 3GHz inputs.
All the InfoFrame data is automatically passed to the HDMI TX within the ADV7850 and output directly to the backend IC.
•
STDI is available in this mode
• Format Detection is available
•
AVI InfoFrame monitoring is available
• Audio Extraction is available in this mode
HDMI Non-Mux Mode
7.1.2
In HDMI Non-Mux mode, the HDMI data is fully decoded and is passed through the component processor before it is sent to the TX
block. In this mode the ADV7850 supports up to 2.25GHz inputs. This mode cannot be used for inputs greater than 2.25 GHz.
This mode supports the following:
• CSC conversion for HDMI inputs
•
4:4:4 to 4:2:2 conversions
• Color control adjustments on the outputs
•
Free Run mode
• Video output timing
•
Full Audio Extraction and Insertion.
Rev. A May 2012
HPA CONTROLLER
5 V REGULATOR
5V DETECT
V R EG
EDID/
REPEATER
CONTROLLER
HDCP
EEPROM
PLL
HDCP
BLOCK
EQUALIZER SAMPLER
EQUALIZER SAMPLER
EQUALIZER SAMPLER
EQUALIZER SAMPLER
A U DIO RETU R N C H A N NE L
(SINGLE MODE)

Figure 50: Functional Block Diagram of HDMI Core

DEEP COLOR
CONVERSION
4:2:2 TO 4:4:4
CONVERSION
FILTER
PACKET/ INFOFRAME
MEMORY
PACKET
PROCESSOR
S PD IF_ IN
136
DATA
HS
VS
DE
AUDIO
PROCESSOR
ADV7850
TO DCM
TO DCM
TO DCM
TO DCM
HA_AP0
HA_AP1
HA_AP2
HA_AP3
HA_AP4
HA_AP5
HA_SCLK
HA_MCLKOUT