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PDF ANX7150 Data sheet ( Hoja de datos )
| Número de pieza | ANX7150 | |
| Descripción | Ultra-Low Power HDMI Transmitter Programmer Guide | |
| Fabricantes | Analogix | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ANX7150 (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
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ANX7150
Ultra‐Low Power HDMI TM Transmitter
Programmer Guide Revision 0.93
September 2009
Analogix Semiconductor, Inc.
3211 Scott Blvd., Suite 102
Santa Clara, CA 95054, USA
(408) 988‐8848
www.analogix.com
Document Number: ANX‐7150‐0410
Free Datasheet http://www.datasheet4u.com/
1 page  
Preliminary
Programmer Guide
1 Introduction
The ANX7150 is an HDMI (High‐Definition Multimedia Interface) transmitter device supporting HDMI 1.2 and
HDCP 1.1 specifications. The ANX7150 can be used to send protected digital video and audio data. It provides
a low cost digital interface for source devices such as DVD players, set‐top boxes, DVRs, computers, and so on.
It is also backward compatible with DVI 1.0 and supports any DVI 1.0 display connected with the ANX7150.
This document is a description of the firmware of the ANX7150 Evaluation Board and a guide for system
engineers and programmers.
Figure 1‐1 illustrates the connection of a HDMI transmitter and receiver in a digital multimedia display system.
DVD, MPEG, Video,
Audio Sources
Video, Audio,
Syncs
Hot Plug
ANX9030
HDMI TX
8051
I2C, Controls
Microcontroller
DDC
HDMI
Conne
ctor
EEROM
EDID PROM
CEC
HDMI
Conne
HDMI Cable ctor
Hot Plug
Optional Analog RGB
Filter
DDC
CEC
ANX9011/
9021 HDMI
RX
Video, Audio,
Syncs
DTV Video
Processor
I2C , Controls
EEPR
OM
8051
Microcontroller
EEPR
OM
I2S, 1 to 8 Ch,
Audio DAC
Figure 1‐1 Digital Multimedia Display System with HDMI Interface
Page 5 of 25 Analogix Confidential Rev 0.93
Free Datasheet http://www.datasheet4u.com/
5 Page 
Preliminary
Programmer Guide
6 Configure Video
Start Config
Video
Config Blue
Screen
Input Video CLK
Detected
N
Y
UnMute TMDS
Set AVMute
Get RX
Supported Video
Format from
EDID
N
Generate DE?
Y
Config DE
Generator
656?
N
Y
Config
Embedded Sync
Config Pixel
Repeat and
Clock Divide
Config Input Bus
Format
HDMI Mode?
DVI
HDMI
To Config Audio
State
TX Support
Mode[i]
Y
N
Y
More Modes?
N
Config Color
Space (DVI)
To HDCP
Authentication
State
Select Mode[i]
Select640x480
Config Up/Down
Sample (DVI)
Return
Figure 6‐1 Video Configuration Flowchart
Figure 6‐1 illustrates the basic video configuration process.
At the beginning of video configuration, the firmware initializes the blue screen registers according to the
video format (RGB, YCbCr4:4:4 or YCbCr4:2:2). If HDCP authentication fails, the firmware terminates HDCP
encryption and enables the blue screen output instead of normal video output.
After the input pixel clock is detected, the firmware un‐mutes the TMDS link (Register 0x72:0x99, bit 7) and
sets AVMute.
Based on the parsing result of EDID and the capability of the video source, the transmitter selects a preferred
video format to send. If required, DE generator, embedded SYNC, color space, and pixel up‐sample are
configured.
If HDMI mode is selected, the firmware goes to the Config Audio state. If DVI mode is selected, the firmware
goes to the HDCP Authentication state without Config Video and Config packets.
A number of difference video formats are supported by the ANX7150 chip. The supported video formats are
listed in the HDMI transmitter design specification. Based on the configuration process of video, the video
interface format is configured by the controller writing to the following registers.
Page 11 of 25 Analogix Confidential Rev 0.93
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet ANX7150.PDF ] | |
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