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Texas Instruments TVP5147M1PFP manual Status 2 Register, AGC Gain Status Register, Signal present

Models: TVP5147M1PFP

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2.11.35 Status 2 Register

Functional Description

2.11.35 Status 2 Register

Subaddress

3Bh

Read only

7	6	5	4	3	2	1	0

Signal present	Weak signal detection	PAL switch polarity	Field sequence status	Color killed	Macrovision detection [2:0]

Signal present detection:

0 = Signal not present

1 = Signal present

Weak signal detection:

0 = No weak signal

1 = Weak signal mode

PAL switch polarity of first line of odd field:

0 = PAL switch is zero.

1 = PAL switch is one.

Field sequence status:

0 = Even field

1 = Odd field

Color killed:

0 = Color killer not active

1 = Color killer activated

Macrovision detection [2:0]:

000 = No copy protection

001 = AGC pulses/pseudo syncs present (type 1)

010 = 2-line color stripe only present

011 = AGC pulses/pseudo syncs and 2-line color stripe present (type 2) 100 = Reserved

101 = Reserved

110 = 4-line color stripe only present

111 = AGC pulses/pseudo syncs and 4-line color stripe present (type 3)

2.11.36 AGC Gain Status Register

Subaddress

3Ch−3Dh

Read only

Subaddress	7	6	5	4		3	2	1	0

3Ch					Fine gain [7:0]

3Dh		Coarse gain [3:0]					Fine gain [11:8]

Fine gain [11:0]: This register provides the fine gain value of sync channel.

1111 1111 1111 = 1.9995

1000 0000 0000 = 1

0010 0000 0000 = 0.5

Coarse gain [3:0]: This register provides the coarse gain value of sync channel.

1111 = 2

0101 = 1

0000 = 0.5

These AGC gain status registers are updated automatically by the TVP5147M1 decoder with AGC on. In manual gain control mode, these register values are not updated by the TVP5147M1 decoder.

SLES140A—March 2007

TVP5147M1PFP

47

Image 55

Texas Instruments TVP5147M1PFP manual Status 2 Register, AGC Gain Status Register, Signal present, Weak signal detection

Contents

March Digital Audio VideoSLES140A Data ManualProducts IMPORTANT NOTICEApplications Introduction ContentsJuly Contents 3 Electrical SpecificationsApplication Information Example Register SettingsTitle List of IllustrationsPage Title List of TablesPage 1 Introduction 1.1 Detailed Functionality 1.3 Related Products 1.2 TVP5147M1 Applications1.4 Ordering Information 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 ContinuedTVP5147M1PFP IntroductionSLES140A-March Figure 2−1. Analog Processors and A/D Converters 2.1.1 Video Input Switch Control2 Functional Description 2.1 Analog Processing and A/D Converters2.1.5 A/D Converters 2.1.2 Analog Input Clamping2.1.3 Automatic Gain Control 2.1.4 Analog Video Output2.2.2 Composite Processor Figure 2−2. Digital Video Processing Block Diagram2.2 Digital Video Processing 2.2.1 2⋅ Decimation Filter2.2.2.1 Color Low-Pass Filter Figure 2−3. Composite and S-Video Processing Block DiagramFigure 2−5. Color Low-Pass Filter With Filter Characteristics, NTSC/PAL ITU-R BT.601 Sampling2.2.2.2 Y/C Separation Figure 2−4. Color Low-Pass Filter Frequency ResponseFigure 2−9. Peaking Filter Response NTSC/PAL ITU-R BT.601 Sampling Figure 2−8. Luminance Edge-Enhancer Peaking Block Diagram2.2.3 Luminance Processing 2.2.4 Color Transient Improvement2.5 Output Formatter Figure 2−10. Reference Clock Configurations2.3 Clock Circuits 2.4 Real-Time Control RTCTable 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 SystemNTSC Figure 2−14. Horizontal Synchronization Signals for 10-Bit 422 ModeNOTE ITU-R BT.656 10-bit 422 timing with 2⋅ pixel clock reference Figure 2−15. Horizontal Synchronization Signals for 20-Bit 422 Mode Table 2−3. EAV and SAV Sequence 2.5.2 Embedded Syncs2.6 I2C Host Interface Figure 2−16. VSYNC Position With Respect to HSYNCTable 2−4. I 2C Host Interface Terminal Description 2.6.1 Reset and I2C Bus Address Selection2.6.3 VBUS Access 2.6.2 I2C OperationNAK = No acknowledge generated by the master Figure 2−17. VBUS AccessNOTE Examples use default I2C address ACK = Acknowledge generated by the slaveTable 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 Stream2.7.2 VBI Raw Data Output 2.8 Reset and InitializationTable 2−9. Reset Sequence Figure 2−18. Reset Timing2.10 Internal Control Registers 2.9 Adjusting External SyncsTable 2−10. I 2C Register Summary Table 2−10. I 2C Register Summary Continued 98h−99h Table 2−10. I 2C Register Summary Continued7Ah−7Eh 84h−96hTable 2−10. I 2C Register Summary Continued Table 2−11. VBUS Register SummaryE3h−E7h 2.11.1 Input Select Register 2.11 Register DefinitionsTable 2−12. Analog Channel and Video Mode Selection Component Video 2.11.2 AFE Gain Control Register2.11.3 Video Standard Register CVBS and S-Video2.11.4 Operation Mode Register 2.11.5 Autoswitch Mask Register2.11.7 Luminance Processing Control 1 Register 2.11.6 Color Killer Register2.11.10 2.11.8 Luminance Processing Control 2 Register2.11.9 Luminance Processing Control 3 Register Luminance Brightness Register2.11.14 Chrominance Processing Control 1 Register 2.11.11 Luminance Contrast Register2.11.12 Chrominance Saturation Register 2.11.13 Chroma Hue Register2.11.16 AVID Start Pixel Register 2.11.15 Chrominance Processing Control 2 Register2.11.20 VSYNC Start Line Register 2.11.17 AVID Stop Pixel Register2.11.18 HSYNC Start Pixel Register 2.11.19 HSYNC Stop Pixel Register2.11.23 VBLK Stop Line Register CTI Delay Register2.11.21 VSYNC Stop Line Register 2.11.22 VBLK Start Line Register2.11.26 CTI Control RegisterSync Control Register 2.11.252.11.28 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 Weak signal detection 2.11.35 Status 2 Register2.11.36 AGC Gain Status Register Signal presentVideo standard 2.11.37 Video Standard Status Register2.11.38 GPIO Input 1 Register AutoswitchAVID 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 Register2.11.45 AFE Fine Gain for YChroma Register 2.11.44 AFE Fine Gain for Pb Register2.11.46 AFE Fine Gain for Pr Register 2.11.48 Field ID Control Register 2.11.47 AFE Fine Gain for CVBSLuma Register656 version 2.11.49 F-bit and V-bit Control 1 Register 2.11.51 AGC Decrement Speed Control Register 2.11.50 Back-End AGC Control Register2.11.52 ROM Version Register 2.11.53 AGC White Peak Processing Register F bit 2.11.54 F and V Bit Control RegisterF and Lines per frame2.11.57 AGC Increment Speed Register 2.11.58 AGC Increment Delay Register2.11.55 VCR Trick Mode Control Register 2.11.56 Horizontal Shake Increment Register2.11.62 CPLL Speed Control Register 2.11.59 Analog Output Control 1 Register2.11.60 Chip ID MSB Register 2.11.61 Chip ID LSB Register2.11.63 2.11.65 AGC Decrement Delay RegisterStatus Request Register 2.11.64 Vertical Line Count Register2.11.66 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 Register2.11.72 VDP Line Number Interrupt Register 2.11.70 VDP FIFO Reset Register2.11.69 VDP FIFO Interrupt Threshold Register 2.11.71 VDP FIFO Output Control Register2.11.76 VDP Global Line Mode Register 2.11.73 VDP Pixel Alignment Register2.11.74 VDP Line Start Register 2.11.75 VDP Line Stop Register2.11.78 VDP Full Field Mode Register 2.11.77 VDP Full Field Enable Register2.11.79 VBUS Data Access With No VBUS Address Increment Register 2.11.80 VBUS Data Access With VBUS Address Increment RegisterFIFO THRS 2.11.82 VBUS Address Access Register2.11.81 FIFO Read Data Register 2.11.83 Interrupt Raw Status 0 RegisterStandard changed 2.11.84 Interrupt Raw Status 1 Register2.11.85 Interrupt Status 0 Register Macrovision status 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 2.12.1 VDP Closed Caption Data Register 2.12 VBUS Register Definitions2.12.2 VDP WSS Data Register 80 0530h 2.12.3 VDP VITC Data Register2.12.4 VDP V-Chip TV Rating Block 1 Register 2.12.5 VDP V-Chip TV Rating Block 2 RegisterTV-Y7 2.12.6 VDP V-Chip TV Rating Block 3 Register2.12.7 VDP V-CHIP MPAA Rating Data Register TV-G2.12.8 VDP General Line Mode and Line Address Register VPS Read only 2.12.9 VDP VPS/Gemstar Data RegisterGemstar Read only 2.12.10 Analog Output Control 2 Register Interrupt Configuration Register2.12.11 3.2 Recommended Operating Conditions Electrical Specifications3.2.1 Crystal Specifications 3.1 Absolute Maximum Ratings†3.3.2.1 Fs = 30 MSPS for CH1, CH2 3.3 Electrical Characteristics3.3.1 DC Electrical Characteristics see Note 3.3.2 Analog Processing and A/D ConvertersFigure 3−1. Clocks, Video Data, and Sync Timing 3.3.3 Timing3.3.3.1 Clocks, Video Data, Sync Timing 3.3.3.2 I2C Host Port TimingTVP5147M1PFP Electrical SpecificationsSLES140A-March 4.1 Example 4 Example Register Settings4.1.2 Recommended Settings 4.2.2 Recommended SettingsAssumptions 4.3.2 Recommended Settings4.3.1 ExampleI2C register address 00h TVP5147M1PFP Example Register SettingsSLES140A-March 5.1 Application Example 5 Application InformationFigure 5−1. Example Application Circuit 5.2 Designing With PowerPADt Devices PACKAGING INFORMATION PACKAGE OPTION ADDENDUMPage