Manuals / Texas Instruments / TV and Video / DVD Player

Texas Instruments TVP5147M1PFP Embedded Syncs, 2.6 I2C Host Interface, 3. EAV and SAV Sequence

Models: TVP5147M1PFP

1 100

Download 100 pages 24.7 Kb

Page 29

Figure 2−16. VSYNC Position With Respect to HSYNC

Functional Description

HS

First Field

VS

HS

Second Field

VS

B/2

H/2 + B/2

B/2

H/2 + B/2

	10-Bit (PCLK = 2⋅ Pixel Clock)		20-Bit (PCLK = 1⋅ Pixel Clock)

Mode	B/2	H/2	B/2	H/2

NTSC 601	64	858	32	429

PAL 601	64	864	32	432

Figure 2−16. VSYNC Position With Respect to HSYNC

2.5.2 Embedded Syncs

Standards with embedded syncs insert the SAV and EAV codes into the data stream on the rising and falling edges of AVID. These codes contain the V and F bits which also define vertical timing. Table 2−3 gives the format of the SAV and EAV codes.

H equals 1 always indicates EAV. H equals 0 always indicates SAV. The alignment of V and F to the line and field counter varies depending on the standard.

The P bits are protection bits:

P3 = V xor H; P2 = F xor H; P1 = F xor V; P0 = F xor V xor H

Table 2−3. EAV and SAV Sequence

	D9 (MSB)	D8	D7	D6	D5	D4	D3	D2	D1	D0

Preamble	1	1	1	1	1	1	1	1	1	1

Preamble	0	0	0	0	0	0	0	0	0	0

Preamble	0	0	0	0	0	0	0	0	0	0

Status word	1	F	V	H	P3	P2	P1	P0	0	0

2.6I2C Host Interface

Communication with the TVP5147M1 decoder is via an I2C host interface. The I2C standard consists of two signals, the serial input/output data (SDA) line and the serial input clock line (SCL), which carry information between the devices connected to the bus. A third signal (I2CA) is used for slave address selection. Although an I2C system can be multimastered, the TVP5147M1 decoder functions as a slave device only.

Because SDA and SCL are kept open-drain at a logic-high output level or when the bus is not driven, the user must connect SDA and SCL to a positive supply voltage via a pullup resistor on the board. The slave addresses select signal, terminal 37 (I2CA), enables the use of two TVP5147M1 devices tied to the same I2C bus, because it controls the least significant bit of the I2C device address.

SLES140A—March 2007

TVP5147M1PFP

21

Image 29

Texas Instruments TVP5147M1PFP manual Embedded Syncs, 2.6 I2C Host Interface, 16. VSYNC Position With Respect to HSYNC

Contents

SLES140A Digital Audio VideoData Manual MarchApplications IMPORTANT NOTICEProducts Introduction ContentsJuly Contents 3 Electrical SpecificationsApplication Information Example Register SettingsPage List of IllustrationsTitle Page List of TablesTitle 1 Introduction 1.1 Detailed Functionality 1.4 Ordering Information 1.2 TVP5147M1 Applications1.3 Related Products Figure 1−1. Functional Block Diagram 1.5 Functional Block Diagram1.6 Terminal Assignments Figure 1−2. Terminal Assignments DiagramTable 1−1. Terminal Functions 1.7 Terminal FunctionsPower Supplies Table 1−1. Terminal Functions ContinuedSLES140A-March IntroductionTVP5147M1PFP 2 Functional Description 2.1.1 Video Input Switch Control2.1 Analog Processing and A/D Converters Figure 2−1. Analog Processors and A/D Converters2.1.3 Automatic Gain Control 2.1.2 Analog Input Clamping2.1.4 Analog Video Output 2.1.5 A/D Converters2.2 Digital Video Processing Figure 2−2. Digital Video Processing Block Diagram2.2.1 2⋅ Decimation Filter 2.2.2 Composite Processor2.2.2.1 Color Low-Pass Filter Figure 2−3. Composite and S-Video Processing Block Diagram2.2.2.2 Y/C Separation Characteristics, NTSC/PAL ITU-R BT.601 SamplingFigure 2−4. Color Low-Pass Filter Frequency Response Figure 2−5. Color Low-Pass Filter With Filter2.2.3 Luminance Processing Figure 2−8. Luminance Edge-Enhancer Peaking Block Diagram2.2.4 Color Transient Improvement Figure 2−9. Peaking Filter Response NTSC/PAL ITU-R BT.601 Sampling2.3 Clock Circuits Figure 2−10. Reference Clock Configurations2.4 Real-Time Control RTC 2.5 Output FormatterTable 2−1. Output Format 2.5.1 Separate SyncsNOTE Line numbering conforms to ITU-R BT.470 Figure 2−12. Vertical Synchronization Signals for 525-Line SystemFunctional Description Figure 2−13. Vertical Synchronization Signals for 625-Line SystemNOTE ITU-R BT.656 10-bit 422 timing with 2⋅ pixel clock reference Figure 2−14. Horizontal Synchronization Signals for 10-Bit 422 ModeNTSC Figure 2−15. Horizontal Synchronization Signals for 20-Bit 422 Mode 2.6 I2C Host Interface 2.5.2 Embedded SyncsFigure 2−16. VSYNC Position With Respect to HSYNC Table 2−3. EAV and SAV Sequence2.6.3 VBUS Access 2.6.1 Reset and I2C Bus Address Selection2.6.2 I2C Operation Table 2−4. I 2C Host Interface Terminal DescriptionNOTE Examples use default I2C address Figure 2−17. VBUS AccessACK = Acknowledge generated by the slave NAK = No acknowledge generated by the masterTable 2−6. Supported VBI System 2.7 VBI Data ProcessorTable 2−7. Ancillary Data Format and Sequence 2.7.1 VBI FIFO and Ancillary Data in Video StreamTable 2−9. Reset Sequence 2.8 Reset and InitializationFigure 2−18. Reset Timing 2.7.2 VBI Raw Data OutputTable 2−10. I 2C Register Summary 2.9 Adjusting External Syncs2.10 Internal Control Registers Table 2−10. I 2C Register Summary Continued 7Ah−7Eh Table 2−10. I 2C Register Summary Continued84h−96h 98h−99hE3h−E7h Table 2−11. VBUS Register SummaryTable 2−10. I 2C Register Summary Continued Table 2−12. Analog Channel and Video Mode Selection 2.11 Register Definitions2.11.1 Input Select Register 2.11.3 Video Standard Register 2.11.2 AFE Gain Control RegisterCVBS and S-Video Component Video2.11.4 Operation Mode Register 2.11.5 Autoswitch Mask Register2.11.7 Luminance Processing Control 1 Register 2.11.6 Color Killer Register2.11.9 Luminance Processing Control 3 Register 2.11.8 Luminance Processing Control 2 RegisterLuminance Brightness Register 2.11.102.11.12 Chrominance Saturation Register 2.11.11 Luminance Contrast Register2.11.13 Chroma Hue Register 2.11.14 Chrominance Processing Control 1 Register2.11.16 AVID Start Pixel Register 2.11.15 Chrominance Processing Control 2 Register2.11.18 HSYNC Start Pixel Register 2.11.17 AVID Stop Pixel Register2.11.19 HSYNC Stop Pixel Register 2.11.20 VSYNC Start Line Register2.11.22 VBLK Start Line Register 2.11.21 VSYNC Stop Line Register2.11.23 VBLK Stop Line Register CTI Delay RegisterSync Control Register CTI Control Register2.11.25 2.11.262.11.28 Output Formatter 2 Register 2.11.27 Output Formatter 1 Register2.11.29 Output Formatter 3 Register 2.11.30 Output Formatter 4 Register 2.11.31 Output Formatter 5 Register 2.11.33 Clear Lost Lock Detect Register 2.11.32 Output Formatter 6 Register2.11.34 Status 1 Register 2.11.36 AGC Gain Status Register 2.11.35 Status 2 RegisterSignal present Weak signal detection2.11.38 GPIO Input 1 Register 2.11.37 Video Standard Status RegisterAutoswitch Video standardAVID 2.11.39 GPIO Input 2 Register2.11.41 AFE Coarse Gain for CH 2 Register 2.11.40 AFE Coarse Gain for CH 1 Register2.11.43 AFE Coarse Gain for CH 4 Register 2.11.42 AFE Coarse Gain for CH 3 Register2.11.46 AFE Fine Gain for Pr Register 2.11.44 AFE Fine Gain for Pb Register2.11.45 AFE Fine Gain for YChroma Register 656 version 2.11.47 AFE Fine Gain for CVBSLuma Register2.11.48 Field ID Control Register 2.11.49 F-bit and V-bit Control 1 Register 2.11.52 ROM Version Register 2.11.50 Back-End AGC Control Register2.11.51 AGC Decrement Speed Control Register 2.11.53 AGC White Peak Processing Register F and 2.11.54 F and V Bit Control RegisterLines per frame F bit2.11.56 Horizontal Shake Increment Register 2.11.55 VCR Trick Mode Control Register2.11.57 AGC Increment Speed Register 2.11.58 AGC Increment Delay Register2.11.60 Chip ID MSB Register 2.11.59 Analog Output Control 1 Register2.11.61 Chip ID LSB Register 2.11.62 CPLL Speed Control Register2.11.64 Vertical Line Count Register Status Request Register2.11.65 AGC Decrement Delay Register 2.11.632.11.66 VDP TTX Filter And Mask Registers 2.11.67 VDP TTX Filter Control Register Figure 2−19. Teletext Filter Function 2.11.68 VDP FIFO Word Count Register2.11.69 VDP FIFO Interrupt Threshold Register 2.11.70 VDP FIFO Reset Register2.11.71 VDP FIFO Output Control Register 2.11.72 VDP Line Number Interrupt Register2.11.74 VDP Line Start Register 2.11.73 VDP Pixel Alignment Register2.11.75 VDP Line Stop Register 2.11.76 VDP Global Line Mode Register2.11.79 VBUS Data Access With No VBUS Address Increment Register 2.11.77 VDP Full Field Enable Register2.11.80 VBUS Data Access With VBUS Address Increment Register 2.11.78 VDP Full Field Mode Register2.11.81 FIFO Read Data Register 2.11.82 VBUS Address Access Register2.11.83 Interrupt Raw Status 0 Register FIFO THRS2.11.85 Interrupt Status 0 Register 2.11.84 Interrupt Raw Status 1 RegisterMacrovision status changed Standard changed2.11.86 Interrupt Status 1 Register 2.11.87 Interrupt Mask 0 Register 2.11.89 Interrupt Clear 0 Register 2.11.88 Interrupt Mask 1 Register2.11.90 Interrupt Clear 1 Register 2.12.2 VDP WSS Data Register 2.12 VBUS Register Definitions2.12.1 VDP Closed Caption Data Register 2.12.4 VDP V-Chip TV Rating Block 1 Register 2.12.3 VDP VITC Data Register2.12.5 VDP V-Chip TV Rating Block 2 Register 80 0530h2.12.7 VDP V-CHIP MPAA Rating Data Register 2.12.6 VDP V-Chip TV Rating Block 3 RegisterTV-G TV-Y72.12.8 VDP General Line Mode and Line Address Register Gemstar Read only 2.12.9 VDP VPS/Gemstar Data RegisterVPS Read only 2.12.11 Interrupt Configuration Register2.12.10 Analog Output Control 2 Register 3.2.1 Crystal Specifications Electrical Specifications3.1 Absolute Maximum Ratings† 3.2 Recommended Operating Conditions3.3.1 DC Electrical Characteristics see Note 3.3 Electrical Characteristics3.3.2 Analog Processing and A/D Converters 3.3.2.1 Fs = 30 MSPS for CH1, CH23.3.3.1 Clocks, Video Data, Sync Timing 3.3.3 Timing3.3.3.2 I2C Host Port Timing Figure 3−1. Clocks, Video Data, and Sync TimingSLES140A-March Electrical SpecificationsTVP5147M1PFP 4.1.2 Recommended Settings 4 Example Register Settings4.2.2 Recommended Settings 4.1 Example4.3.1 4.3.2 Recommended SettingsExample AssumptionsI2C register address 00h SLES140A-March Example Register SettingsTVP5147M1PFP Figure 5−1. Example Application Circuit 5 Application Information5.1 Application Example 5.2 Designing With PowerPADt Devices PACKAGING INFORMATION PACKAGE OPTION ADDENDUMPage