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ADV7611参考配置.pdf

发布时间：2022-06-08 发布人：admin 分类：说明书 资料大小：0.33M 资料格式：pdf 举报 版权申诉
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    INTRODUCTION
    1 ADV7611 I2C ADDRESSES
    2 RECOMMENDED INITIALIZATION SETTINGS
    2.1 INITIALIZATION SETTINGS FOR HDMI MODE
    2.2 DYNAMIC SETTINGS FOR HDMI
    2.2.1 Hot Plug Assert
    2.2.2 Free-run Operation
    2.2.3 Power Down modes
    2.2.4 Packet Detection
    2.2.5 Equalizer Settings
    2.2.6 Low Frequency Formats
    NOTES
    Recommended Settings Document ADV7611 ADV7611 Register Settings Recommendations Revision 1.4 January 2014
    ADV7611 TABLE OF CONTENTS Register Settings Recommendations 2.1 2.2 Introduction ........................................................................................................................................................................................................................ 3 Legal Terms and Conditions ............................................................................................................................................................................................. 3 Revision History ................................................................................................................................................................................................................. 3 1 ADV7611 I2C Addresses ....................................................................................................................................................................................... 4 Recommended Initialization Settings .................................................................................................................................................................. 4 2 Initialization Settings for HDMI Mode ........................................................................................................................................................ 4 Dynamic Settings for HDMI .......................................................................................................................................................................... 5 Hot Plug Assert ....................................................................................................................................................................................... 5 Free-run Operation ................................................................................................................................................................................ 5 Power Down modes ............................................................................................................................................................................... 6 Packet Detection ..................................................................................................................................................................................... 6 Equalizer Settings ................................................................................................................................................................................... 9 Low Frequency Formats ........................................................................................................................................................................ 9 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 Rev. 1.4 | Page 2 of 11
    ADV7611 Register Settings Recommendations INTRODUCTION This document describes ADI register setting recommendations and adjustments for the ADV7611. This document must be used in conjunction with the latest Hardware Manual / User Guide and Software Manual. LEGAL TERMS AND CONDITIONS Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. Software or hardware provided by Analog Devices may not be disassembled, decompiled or reverse engineered. Analog Devices’ standard terms and conditions for products purchased from Analog Devices can be found at: http://www.analog.com/en/content/analog_devices_terms_and_conditions/fca.html. REVISION HISTORY 1/14—Rev. 1.3 to Rev. 1.4 Section 2.1 updated; new write: 68 9B 03 write added Low Frequency Formats section added (2.2.6) 04/13—Rev. 1.2 to Rev. 1.3 Pages 1-4 updated Formatting updated throughout Recommended I2C Addresses section renumbered to 1 from 1.1 and renamed ADV7611 I2C Addresses Sections 1.2-1.3 renumbered 2.1-2.2 and grouped under section 2 HDMI Receiver Register Settings 11/11—Rev. 1.1 to Rev. 1.2 HDMI Receiver Register Settings section modified : new writes: 44 6C 00; 68 03 98; 68 4C 44 Equalizer Settings section modified 11/10—Rev. 1.0 to Rev. 1.1 Added recommended writes for non-fast switching scripts Write removed from equalizer settings: 68 9D 02 ; ADI Equalizer Setting 11/10—Revision 1.0: Initial Version Rev. 1.4 | Page 3 of 11
    ADV7611 Register Settings Recommendations 1 ADV7611 I2C ADDRESSES The ADV7611includes the following programmable I2C map addresses : I2C Addresses 98 F4 80 98 F5 7C 98 F8 4C 98 F9 64 98 FA 6C 98 FB 68 98 FD 44 CEC Map I2C address INFOFRAME Map I2C address DPLL Map I2C address KSV Map I2C address EDID Map I2C address HDMI Map I2C address CP Map I2C address The I2C addresses are programmed in the IO Map at the registers shown above. The ADV7611 IO I2C Map address is non-programmable and its address is fixed to 0x98 or 0x9A depending on the configuration of the VS/ALSB/FIELD and SAMPLE_ALSB control (IO Map, Reg. 0x1B[0]). Refer to the ADV7611 Hardware User Guide (UG-180) for further information. The I2C map addresses listed above are used throughout this document. 2 RECOMMENDED INITIALIZATION SETTINGS 2.1 ADI recommends that these register settings are programmed to setup the ADV7611 correctly in HDMI mode. INITIALIZATION SETTINGS FOR HDMI MODE CP Map 44 6C 00 ADI recommended write HDMI Map 68 9B 03 68 6F 0C 68 85 1F 68 87 70 68 57 DA 68 58 01 68 03 98 68 4C 44 ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write Set DIS_I2C_ZERO_COMPR 0x03[7]=1 Set NEW_VS_PARAM 0x44[2]=1 Rev. 1.4 | Page 4 of 11
    ADV7611 Register Settings Recommendations For non-fast switching applications, the following settings are recommended : HDMI Map 68 C1 01 68 C2 01 68 C3 01 68 C4 01 68 C5 01 68 C6 01 68 C7 01 68 C8 01 68 C9 01 68 CA 01 68 CB 01 68 CC 01 ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write ADI recommended write 2.2 DYNAMIC SETTINGS FOR HDMI The following register settings and processes are required for the best performance. 2.2.1 Hot Plug Assert To manually assert a hot plug, e.g. to replicate a down-stream hot plug in a repeater application, the following write should be used : IO Map 98 20 F8 Manually assert hot plug on port A Following a manual assertion of the hot plug, the hot plug must also be manually de-asserted. 2.2.2 For best free-run performance, the following steps should be employed : Free-run Operation • • • • • Set PRIM_MODE to the desired free-run standard (IO Map, 0x01[3:0]) Set VID_STD to the desired free-run standard (IO Map, 0x00[5:0]) Set VFREQ to the frequency of the desired free-run standard (IO Map, 0x01[6:4]) Set DIS_AUTO_PARAM_BUFF (CP Map, 0xC9[0]) to slave free-run parameters from PRIM_MODE and VID_STD Enable free-run mode (CP Map, 0xBF[0]) Rev. 1.4 | Page 5 of 11
    ADV7611 Register Settings Recommendations 2.2.3 The ADV7611 has two power down modes – power down mode 0 and power down mode 1. Power Down modes • • • In power down mode 0 and power down mode 1, chassis supply is available. In power down mode 1 - CEC is powered up. In power down mode 0 - CEC is powered down. To correctly power down the ADV7611, the following steps should be used : • • • Set POWER_DOWN bit (98 0C 62) In case of POWER_DOWN mode 0 – power down CEC (80 2A 3E) In case of POWER_DOWN mode 1 – power up CEC (80 2A 3F) When returning from low power mode, to correctly power up the ADV7611, the following steps should be used : • • • Put the RX section into power down mode (98 0C 42) If CEC should be powered up (80 2A 3F) If CEC should be powered down (80 2A 3E) Note: In power down modes additional power-savings can be achieved using following writes : • Ring Oscillator powered down (68 48 01) • DDC Pads off (68 73 01) 2.2.4 The ADV7611 does not generate an interrupt when a source stops sending the following infoframes : Packet Detection Source Prod infoframe • Audio infoframe • • MPEG Source infoframe • Vendor Specific infoframe • ACP infoframe • ISRC1 infoframe • ISRC2 infoframe • Gamut infoframe To detect when a source has stopped sending an infoframe : • Clear infoframe interrupt RAW bit • If RAW bit does not get set during max allowed packet repeat time, the source has stopped sending the infoframe For example, 3D content is indicated using the Vendor Specific (VS) infoframe. It has been observed that some 3D sources stop sending the VS infoframe if their output is switched from 3D to 2D. For this reason, the application must detect when the VS infoframe has stopped being received. Rev. 1.4 | Page 6 of 11
    ADV7611 Register Settings Recommendations A suggested ISR Routine that could be employed is as follows : Start VS_INFO_ST has been set indicating that VS infoframe has been received Is VS_INFO_RAW high? IO Map, 0x60[4] Yes Enable software timer for max allowed packet repeat time (timer used to measure time since last packet detected) No Clear status bit IO Map, 0x62[4] End Figure 1. ISR Routine Rev. 1.4 | Page 7 of 11
    ADV7611 Register Settings Recommendations No Start IS VS_INFO_RAW bit high? IO Map, 0x60[4] Yes Is Timer Enabled? Yes Reset Timer Disable Interrupt Mask IO Map, 0x63[4] Packets Are Received No No Is Timer Enabled? Enable Interrupt Mask IO Map, 0x63[4] Clear VS_INFO_RAW Infoframe Map, 0xEC = 0x81] Yes Is time > max allowed packet repeat time Yes Stop Timer Enable Interrupt Mask IO Map, 0x63[4] Packets have stopped being transmitted No End Figure 2. Infoframe Task Rev. 1.4 | Page 8 of 11
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