Texas Instruments TVP5154EVM User manual

TVP5154EVM
User's Guide
Literature Number: SLEU069AFebruary 2006 – Revised July 2006

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Contents
1 Functional Description ................................................................................................. 61.1 Description Overview ............................................................................................ 62 Board Level Description .............................................................................................. 72.1 Test Points and Jumpers ........................................................................................ 72.2 Common Board Interface ....................................................................................... 82.3 Video Input Description .......................................................................................... 82.4 Video Output Description ....................................................................................... 83 System-Level Description ............................................................................................ 94 Required Hardware and Equipment ............................................................................... 95 Hardware Setup .......................................................................................................... 96 Software Installation .................................................................................................. 107 WinVCC Quick Start ................................................................................................... 108 WinVCC in Depth ....................................................................................................... 138.1 Starting WinVCC ................................................................................................ 138.2 WinVCC Configuration Dialog Box ........................................................................... 148.3 I
2
C System Test................................................................................................. 148.4 Real-Time Polling ............................................................................................... 158.5 Main Menu ....................................................................................................... 168.6 TVP5154 Property Sheets ..................................................................................... 239 Programming the TMS320DM642 ................................................................................. 259.1 Development and Purpose of DM642 Code ................................................................ 259.2 Details of the DM642 Code and Control Registers ........................................................ 2610 Troubleshooting ........................................................................................................ 3310.1 Troubleshooting Guide ......................................................................................... 3310.2 Corrective Action Dialogs ...................................................................................... 3511 TVP5154EVM Schematics ........................................................................................... 37
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List of Figures
1 TVP5154EVM Block Diagram .............................................................................................. 72 Anti-Aliasing Filter Selection ................................................................................................ 83 TVP5154EVM System-Level Block Diagram ............................................................................. 94 WinVCC – I
2
C Configuration Screen .................................................................................... 115 Real-Time Polling Dialog .................................................................................................. 126 Decoder I
2
C Write and Read Enable .................................................................................... 127 WinVCC – Main Screen ................................................................................................... 128 WinVCC – System Initialization .......................................................................................... 139 WinVCC Multiple Occurrences Error Message ......................................................................... 1310 WinVCC I
2
C Address Configuration ..................................................................................... 1411 I
2
C System Failure ......................................................................................................... 1512 Real-Time Polling Dialog .................................................................................................. 1613 WinVCC – Main Screen ................................................................................................... 1614 Decoder I
2
C Write and Read Enable .................................................................................... 1715 System Initialization ........................................................................................................ 1816 TVP5154 Register Map Editor ............................................................................................ 2017 7311 Encoder Module Register Map Editor ............................................................................ 2118 Generic I
2
C Register Map Editor ......................................................................................... 2219 Memory Map Editor ........................................................................................................ 2220 TVP5154 Property Sheets ................................................................................................ 2421 DM642 Control Window ................................................................................................... 2622 I
2
C System Failure Dialog Box ........................................................................................... 3523 Corrective Action Dialog Box ............................................................................................. 3524 Corrective Action Required ............................................................................................... 3625 Corrective Action Required ............................................................................................... 3626 I
2
C Error ..................................................................................................................... 37
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List of Tables
1 I
2
C Address Selection Jumpers (I2CSEL1, JP9 and I2CSEL2, JP10) ................................................ 72 Power-Down-Mode Selection Jumper (PDN, JP11) .................................................................... 73 Main Menu Summary ...................................................................................................... 164 TVP5154 Register Map Editor Controls ................................................................................. 215 Memory Map Editor Controls ............................................................................................. 236 Use of Property Sheet Controls .......................................................................................... 257 Property Sheet Button Controls .......................................................................................... 258 DM642 Control Window Controls ........................................................................................ 279 DM642 Virtual I
2
C Register Map ......................................................................................... 2710 Decoder 1 Register ........................................................................................................ 2811 Decoder 2 Register ........................................................................................................ 2912 Decoder 3 Register ........................................................................................................ 3013 Decoder 4 Register ........................................................................................................ 3014 Decoder 1 Input Format Register ........................................................................................ 3115 Decoder 2 Input Format Register ........................................................................................ 3116 Decoder 3 Input Format Register ........................................................................................ 3217 Decoder 4 Input Format Register ........................................................................................ 3218 LED Control Register ...................................................................................................... 3219 Flash Major Version Register ............................................................................................. 3220 Flash Minor Version Register ............................................................................................. 3221 TVP5154EVM Troubleshooting........................................................................................... 33
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1 Functional Description
1.1 Description Overview
User's GuideSLEU069A – February 2006 – Revised July 2006
TVP5154EVM User's Guide
The TVP5154EVM evaluation module is a printed circuit board designed for evaluation of the TVP5154quad video decoder. The board includes the TMS320DM642 digital signal processor (DSP) and isdesigned with a 120-pin connector, which allows a connection to multiple backends; the evaluation module(EVM) is shipped with a professional encoder module. The board is designed to provide ease of use, whileallowing full evaluation of the video decoder.
The TVP5154EVM uses the PC parallel port to emulate the I
2
C bus, which provides communication withthe TVP5154 video decoder, DM642, and the video encoder. The Windows™ Video Control Center(WinVCC) application software that communicates with the devices via the I
2
C is provided on the EVMCD-ROM.
The analog video inputs supported by the TVP5154EVM include composite video and S-video. More detailabout the video inputs is discussed in section 2.3 Video Input Description. In general, the video decoderconverts the analog video input signal into digital component data. This data and the associated clocksfrom the video decoder are sent to the DM642, which provides various image capture and display modes.The DM642 is setup in I
2
C slave mode and is controlled through virtual I
2
C registers. The video encoderthen converts the digital data from the DM642 back into analog video. The analog video outputs supportedby the EVM include composite video, S-video, and component video. These are all output simultaneously.
To experiment with the programmable features of the TVP5154 video decoder and the video encoder, theparallel port of the TVP5154 is connected to the parallel port of a PC. WinVCC, a Windows-compatibleapplication provides the user interface for performing register-level and high-level control of the TVP5154video decoder and the video encoder.
Code Composer Studio is a trademark of Texas Intruments.All other trademarks are the property of their respective owners.
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2 Board Level Description
2.1 Test Points and Jumpers
Board Level Description
The TVP5154EVM consists of the TVP5154EVM module and the encoder EVM module. A 4-row 120-pinconnector connects the boards. The block diagram of the EVM set is shown in Figure 1 .
Figure 1. TVP5154EVM Block Diagram
The TVP5154EVM was designed with test points and jumpers to help in evaluation and troubleshooting.Each jumper is set by default in its preferred state for the TVP5154EVM. There are test points for SCL,SDA, 3.3 V, and 1.8 V. All digital video data for each decoder core are brought out to a dual-row header,which allows easy hookup to test equipment. The I
2
C address selection is made with two shunt jumpers,which are only read after a reset or at power up. The default address is 0xB8. If the address needs to bechanged, the TVP5154 must receive a reset.
Table 1. I
2
C Address Selection Jumpers(I2CSEL1, JP9 and I2CSEL2, JP10)
JP9 JP10 I
2
C ADDRESS
2-3 2-3 0xB81-2 2-3 0xBA2-3 1-2 0xBC1-0 1-2 0xBE
Table 2. Power-Down-Mode Selection Jumper(PDN, JP11)
PWDN
1-2 Normal operation2-3 Power down
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2.2 Common Board Interface
2.3 Video Input Description
2.4 Video Output Description
Board Level Description
Note: If the I
2
C address is changed on either the TVP5154 board or the encoder board while theTVP5154EVM is powered up, that device will not recognize the new I
2
C address. The resetbutton on the TVP5154EVM must be pressed and WinVCC must be reconfigured for the newI
2
C address.
The TVP5154EVM uses a 4-row 120-pin connector to share common signals and the 5-V power supplybetween the boards. This connection allows multiple backends to be connected to the TVP5154EVM. TheEVM package is shipped with an encoder module. This connector shares all digital video bits (Y[7:0]), allvideo clocks (VS, HS, GLCO/FID, and DATACLK), 5 V, ground, I
2
C bus (SCL and SDA), and reset.
The TVP5154EVM decoder has an analog input channel that accepts two video inputs for each decodercore. The decoder supports a maximum input voltage range of 0.75 V, therefore, an attenuation ofone-half is needed for most input signals with a peak-to-peak variation of 1.5 V. The parallel terminationbefore the input to the device is 75 Ω. The two analog inputs can be connected as either two selectablecomposite video inputs, or one S-video input.
The TVP5154EVM allows the user to have up to two composite inputs or one S-video input for each of thefour-channels. The EVM software sets up and controls this input selection. The S-video input uses twoconnectors, one for the luma channel and one for the chroma channel.
The EVM has a resistor network on each of the inputs. These networks attenuate the signal and allow a75- Ωresistor to ground to be placed after the anti-alias filter for termination.
Each input has an anti-alias filter that can be in-circuit or bypassed by jumpers (JP1–JP8). To select thefilter, the shunts need to be positioned to short positions 1-3 and 2-4. To bypass the filter, the shunts needto be moved to short positions 1-2 and 3-4 as shown in Figure 2 . The boards are shipped with the filterbypassed.
Figure 2. Anti-Aliasing Filter Selection
The 8-bit digital video outputs of the TVP5154 are routed to the four 32-pin headers (H2–H5), the DM642,and finally to the 120-pin edge connector along with all video clocks on the TVP5154 module. Theencoder module connects to the 120-pin connector, and is capable of receiving digital video with orwithout embedded syncs. The analog outputs of the encoder module are composite, S-video, andcomponent. For the user’s convenience, all of these outputs come out of the encoder modulesimultaneously.
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3 System-Level Description
4 Required Hardware and Equipment
5 Hardware Setup
System-Level Description
A system-level block diagram incorporating the TVP5154 is shown in Figure 3 . Typicalcommercially-available test equipment is also shown. The primary features of this configuration are:•Power is provided by a single 5-V power supply provided with the EVM and is shared between bothmodules via the 120-pin connector.•Supported analog inputs include composite video and S-video.•Re-encoded composite video and S-video are output via the encoder module.•Component (YPbPr) video is output via the encoder module.•I
2
C bus initializes the video devices via a PC parallel port.•The TVP5154 video decoder performance parameters may be measured with a video analyzer.
Figure 3. TVP5154EVM System-Level Block Diagram
The required hardware and equipment necessary to use the TVP5154EVM are:•TVP5154EVM (provided)•Universal 5-V power supply (provided)•Parallel cable (provided)•Windows-based PC with CD-ROM drive and Win95™ or later•Composite or S-video cables for inputs•Composite, S-video, or component cable for output•Video sources (security camera, pattern generator, Quantum generator, DVD player, etc.)•Display monitor that supports composite, S-video, or component video input
Figure 1 shows the TVP5154EVM layout and indicates the location of the power supply and theappropriate connectors. All connectors are labeled according to their function. To prepare the EVM forevaluation, connect the following:1. TVP5154 module to encoder module2. Parallel port cable from TVP5154EVM to the PC3. Analog video sources to TVP5154EVM inputs4. Analog video out from TVP5154EVM to monitor5. 5-V power supply to the dc jack on the TVP5154 board. A green LED on each board should now be lit.
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6 Software Installation
7 WinVCC Quick Start
Software Installation
The system comes with the anti-alias filters bypassed. To connect the filters, you must rotate theappropriate jumpers (JP1–JP8) as described in section 2.3.
The I
2
C slave address can be selected with jumpers JP9 and JP10. There are four possible addresses:B8, BA, BC, and BE. The default setting for these jumpers is for the shunt to short pins 2-3, which selects0xB8. These are connected to pins 117 and 118, which are read at power up. If you move both thejumpers to positions 1-2 and reset the board, the video decoder now responds to I
2
C slave address 0xBE.If you choose to change the address, you must exit, restart WinVCC, and configure the software to usethe new I
2
C slave address.
WinVCC is a Windows application that uses the PC parallel port to emulate I
2
C, providing access to eachdevice on the I
2
C bus. WinVCC makes use of CMD files, a text editable file that allows preset videosetups to be programmed easily.
This feature allows the user to easily set multiple I
2
C registers with the press of a button. WinVCC alsohas property sheets for the TVP5154, which allows the user to control the I
2
C registers with a GUI.
All necessary software for the TVP5154EVM is provided on the enclosed CD. Perform the following stepsto install WinVCC:1. Explore the provided TVP5154EVM Software CD.2. Install Port95NT.exe. This is the parallel port driver used by WinVCC. This driver must be installed andthe PC must be rebooted before WinVCC operates correctly. This does not affect normal parallel portoperation.
3. Install Setup.exe. Click Next at all prompts and click Finish to complete the installation process. Thisinstalls WinVCC onto the PC. No reboot is required.4. Run WinVCC.exe.
Note: A shortcut to WinVCC should now be available on the desktop. WinVCC and additionalTVP5154-related documentation can also be found at Start →Programs →TVP5154EVMSoftware.
Perform the following steps in order to see a video output from the TVP5154EVM.1. Once WinVCC is executed, the WinVCC Configuration screen appears, as shown in Figure 4 . Thisdialog box configures the I
2
C bus. Next to VID_DEC, select the TVP5154 and ensure the I
2
C addressis set to 0xB8 (default setting on EVM.) This must match the I
2
C ADDR jumper on the TVP5154 board.2. Next to VID_ENC, select the 7311 Encoder and ensure the I
2
C address is set to 0x54 (default settingon EVM.) This must match the I
2
C ADDR jumper on the encoder board.
Note: If WinVCC is running and the TVP5154 or encoder board I
2
C address is changed, powermust be cycled on the EVM.
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WinVCC Quick Start
Figure 4. WinVCC – I
2
C Configuration Screen
3. Ensure that all other boxes are selected as “Not Used” and that all program options buttons are set toENABLE. Click OK.4. If there are no I
2
C communication issues, the Real-Time Polling dialog window displays next as shownin Figure 5 . If there are I
2
C issues, an I
2
C Test Report box displays. Completely exit out of WinVCC,double-check the parallel port cable connections, I
2
C address settings, cycle power on theTVP5154EVM, and re-run WinVCC.5. When using the TVP5154 EVM with a composite output from the 7311 encoder, it is required to disableauto-switch polling in the Real-Time Polling dialog box by clicking on the ENABLED button. Click OKand then the Main Control Window is seen, as shown in Figure 7 .
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WinVCC Quick Start
Figure 5. Real-Time Polling Dialog
6. The TVP5154 I
2
C Write Enable(s) and Read Enable pop-up window is displayed as shown in Figure 6 .This is used to select which decoder or decoders (any combination of all four) will receive I
2
C Writecommands, and which decoder (only one) will receive I
2
C Read commands. Decoder 1 is Enabled bydefault; enable the other three decoders by clicking on each decoder’s enable button.
Figure 6. Decoder I
2
C Write and Read Enable
7. Load the provided Initialization command (CMD) file into WinVCC by clicking on Tools →SystemInitialization →Browse. The default directory is C:\Program Files\TexasInstruments\TVP5154EVM\Initialization.
Figure 7. WinVCC – Main Screen
8. In the System Initialization Window (see Figure 8 ), click the “TVP5154 ROM – Initialize for NTSC...” or“TVP5154 ROM – Initialize for PAL...” dataset in the window and then click the PROGRAM Device(s)Using Selected Dataset button to initialize the TVP5154EVM.
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8 WinVCC in Depth
8.1 Starting WinVCC
WinVCC in Depth
Figure 8. WinVCC – System Initialization
9. With video sources provided at the BNC connectors and the EVM output connected to a monitor, videofrom the source connected to CH1 should be viewable on the display monitor.10. The other datasets in the command file are provided to demonstrate examples of 5154 scalingperformance. Refer to the TVP5154 data sheet (SLES163) or Scaler application report for more detailson programming the TVP5154 scaler. The DM642 settings can be controlled by using the DM642Control Window, which is found by clicking on Tools →DM642 Control. Refer to Chapter 9 for details onprogramming the DM642 through this window or through the Generic I
2
C registers.
The following sections describe how to use Windows™ Video Control Center (WinVCC) in depth. Itdiscusses various features and screens that the user may encounter while evaluating the TVP5154EVM.
The Port95NT parallel port driver must be installed before using WinVCC. WinVCC may be started byclicking on Start →All Programs →TVP5154EVM Software →WinVCC.
If the dialog box shown in Figure 9 is displayed, it means one of two things:•WinVCC did not run to completion the last time it ran. In this case, click OK to exit the program andrestart WinVCC.•There is more than one instance of WinVCC running at the same time. In this case, click OK to exit theprogram. Then, press CTRL-ALT-DELETE to bring up the Task Manager. Select and click End Taskon all occurrences of WinVCC or WinVCC CONFIGURATION. Then restart WinVCC.
Figure 9. WinVCC Multiple Occurrences Error Message
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8.2 WinVCC Configuration Dialog Box
8.3 I
2
C System Test
WinVCC in Depth
The WinVCC Configuration dialog box (see Figure 10 ) should now be visible. This dialog box configuresthe I
2
C bus on the TVP5154EVM. All settings from this dialog box are stored in the Windows registry andare restored the next time the program is started. After initial installation, VID_DEC is set to TVP5154 andVID_ENC is set to 7311 Encoder.
The I
2
C slave address for each device must match the I
2
C slave address selected by jumpers on theTVP5154EVM. These jumpers are set by the factory to use 0xB8 for the TVP5154 and 0x54 for theEncoder. It is also important to select the correct Specific Device type for the video decoder. TVP5154 and7311 Encoder must be selected for this EVM.
All Program Options must be enabled. Disabling these options is only required if debugging a problemwith the I
2
C bus.
Clicking OK begins I
2
C communication with the selected devices.
Figure 10. WinVCC I
2
C Address Configuration
The I
2
C system test of selected registers runs immediately after closing the WinVCC Configuration dialogbox with OK (unless the I
2
C system test program options button was disabled).
If the I
2
C system test passes, only a PASS message appears. If the test failed, a dialog box like the oneshown in Figure 11 appears. See Section 10, Troubleshooting, for details on how to resolve this issue.
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8.4 Real-Time Polling
WinVCC in Depth
The I
2
C system test can be run at anytime by clicking Run System I
2
C Test in the Tools menu.
Figure 11. I
2
C System Failure
Real-time polling provides polling functions that execute continuously in the background, when enabled viathe Real-Time Polling dialog. There are two polling functions. The function that applies to the TVP5154 isVIDEO-STANDARD AUTO-SWITCH POLLING.
When the TVP5154 detects a change in the input video standard, it automatically switches to operation inthe detected standard (which includes all necessary I
2
C register initialization) for proper decoding of theinput video. To enable auto-switch on the TVP5154, the Set Video Standard register must be set toauto-switch mode (Reg 0x28 = 0x00).
If the WinVCC auto-switch polling function is enabled, the detected video standard status from theTVP5154 is polled until a change in the input video standard (or in the TVP5154 sampling mode) isdetected. When a change is detected, the video encoder is reprogrammed as needed for the detectedstandard. Using this feature, the video source can change its video standard and the system displaysusing the new standard, without user intervention.
When using the TVP5154 EVM with the DM642 and a composite output from the 7311 encoder, it isrequired to disable auto-switch polling by clicking on the ENABLED button in the Real-Time Polling dialogbox as shown in Figure 12 .
The real-time polling dialog can also be accessed once WinVCC is up and running by clicking Real-TimePolling in the Tools menu.
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8.5 Main Menu
WinVCC in Depth
Figure 12. Real-Time Polling Dialog
After closing the real-time polling dialog, the main menu is displayed as shown in Figure 13 . The menus,which are used to operate WinVCC, are File, Edit, Tools, Window, and Help. The File menu’s only functionis Exit, which terminates the program. Table 3 summarizes the main menu contents.
Figure 13. WinVCC – Main Screen
Table 3. Main Menu Summary
MENU CONTENTS
File ExitEdit Register MapTVP5154
7311 Encoder ModuleGeneric I
2
CMemory MapTVP5154
7311 Encoder ModuleProperty Sheets
TVP5154
7311 Encoder ModuleTools System Initialization
Real-time PollingTV Tuner Control (FQ12xx series only)Multiple-Byte I
2
C TransfersSet I
2
C Bit RateRun System I
2
C TestRun Continuous I
2
C TestRead VBI FIFOCapture Live VBI DataDM642 ControlWindow Allows selection of the active window. Multiple windows can be open at the same time.Help Displays program version
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8.5.1 System Initialization
WinVCC in Depth
The TVP5154 I
2
C Write Enable(s) and Read Enable pop-up window is displayed as shown in Figure 14 .This is used to select which decoder or decoders (any combination of all four) will receive I
2
C Writecommands, and which decoder (only one) will receive I
2
C Read commands. Decoder 1 is Enabled bydefault; enable the other three decoders by clicking on each decoder’s enable button.
Figure 14. Decoder I
2
C Write and Read Enable
Clicking System Initialization in the Tools menu displays the dialog box shown in Figure 15 . This dialogbox provides the means for initializing the TVP5154 decoder(s) and/or video encoder for a particular videomode, as well as programming settings for the DM642 through the Generic I
2
C registers. The details ofthe initialization are contained in the command file (with a CMD file extension).
The command file is loaded using the Browse …button. Once the command file is opened, a text listdisplays descriptions of the individual datasets contained within the command file.
Click once on the desired dataset description to select it. Click the Program Device(s) Using SelectedDataset button to run the selected dataset, which loads the devices via the I
2
C bus. When the deviceinitialization has completed, the status indicator reads Ready.
Note: If Ready does not display, the devices are not initialized and the I
2
C bus is notcommunicating. See Chapter 10, Troubleshooting, for possible solutions.
Click the OK button to close the dialog box. Each time the System Initialization dialog box is closed, theinitialization file pathname and the dataset selection number are saved in the Windows registry to allowthese settings to be retained for the next time WinVCC runs.
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8.5.1.1 Adding a Custom Dataset
WinVCC in Depth
Figure 15. System Initialization
After programming the EVM via the System Initialization tool using the factory-supplied command file, youcan customize the device register settings to fit your needs. Perform the following steps to save yourcustom settings:1. Reopen the System Initialization dialog box via the Tools menu.2. Click the Append Current Device Settings to Command File button. A dialog box requesting adescription of the new dataset appears.3. Optionally, click the drop-down box and select one of the existing descriptions.4. Modify the description text or type your own description.5. Click OK. All nondefault register values from the TVP5154, DM642, and encoder are appended to thecurrent command file as an additional dataset.
Now, you can select your custom dataset and send it with a press of the Program …button.
By using the same procedure above with the Replace Selected Dataset with Current Device Settingsbutton you can overwrite an existing dataset with the current settings.
Note: If editing the command file (.CMD) using a standard editor, the file must be saved as plaintext.
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8.5.1.2 Command Files
8.5.1.3 Example Command File
WinVCC in Depth
The command file is a text file that can be generated using any common editor; however, it must be savedas plain text. Command files are especially useful for quickly switching between the various systemconfigurations. These .CMD files are unrelated to the typical Windows .CMD files.
A default command file is provided on the CD. This command file contains many examples of the desiredsetups. This command file is located at:
c:\Program Files\Texas Instruments\TVP5154EVM\Initialization\
A command file can contain up to 250 datasets. A dataset is a set of register settings to initialize theTVP5154 decoder, 7311 encoder, and/or DM642 for a particular video mode. Each dataset includes adescription that is displayed in one row of the dataset descriptions list. The register settings may belocated in the command file itself and/or may be stored in separate include file(s) (with an .INC fileextension) and be included into the command file using the INCLUDE statement.
An example of one dataset within a command file is shown below.BEGIN_DATASET
DATASET_NAME,”TVP5154, Auto–switch, Stable Sync, Fast-lock, 656 Out”// Initialize video encoder using an include fileINCLUDE, EncoderNTSC656_RTC.INC
// Program TVP5154 registersWR_REG,VID_DEC,1,0x7F,0x00 // Reset 5154 microprocessorWR_REG,VID_DEC,1,0x03,0x0D // Enable YCbCr outputs and syncsWR_REG,VID_DEC,1,0x15,0x81 // Enable Stable Sync modeWR_REG,VID_DEC,1,0x02,0x80 // Enable Fast-lock mode
END_DATASET
Each command file may contain individual write-to-register (WR_REG) commands.•The comment indicator is the double-slash //.•The command file is not case sensitive and ignores all white-space characters.•All numbers can be entered as hexadecimal (beginning with 0x) or as decimal.•Every dataset in a command file begins with BEGIN_DATASET and ends with END_DATASET. Themaximum number of datasets is 250.•The dataset text description is entered between double quotes using the DATASET_NAME command.The enclosed text can be up to 128 characters in length. This text appears in the System Initializationdialog box when the command file is opened.•The INCLUDE command inserts the contents of an include file (with an .INC file extension) in-line inplace of the INCLUDE command. Therefore, the include file must not contain the BEGIN_DATASET,END_DATASET, and DATASET_NAME commands.
Note: All included files must be located in the same directory as the command (CMD) file.
•The write-to-register command is written as:WR_REG, <DeviceFamily>, <Number of data bytes (N)>, <subaddress>, <Data1>, …, <DataN>or
WR_REG, <Literal slave address>, <Number of data bytes (N)>, <subaddress>, <Data1>, …, <DataN>The valid device family mnemonics are:VID_DEC for the video decodersVID_ENC for the video encodersTHS8200 for the THS8200 deviceWinVCC translates the device family mnemonic to the slave address that was selected in the WinVCCConfiguration dialog box upon program startup. This eliminates having to edit command files if thealternate slave address must be used.
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8.5.2 Register Editing
8.5.2.1 Register Map Editor
WinVCC in Depth
If the literal slave address method is used, the slave address entered is used directly. This method isnormally used for programming the video encoder.The slave address 0x40h is used to access the DM642.•A delay may be inserted between commands using the WAIT command, which is written as:WAIT,<# milliseconds>
The next section describes the five available modes of register editing: TVP5154 Register Map editor,7311 Encoder Module Register Map editor, Generic I
2
C Register Map editor, TVP5154 memory mapeditor, and TVP5154 Property Sheets. Each of these functions can be selected from the Edit menu.
The TVP5154 Register Map editor (see Figure 16 ) allows the display and editing of the entire usedregister space of the device within a simple scrolling text box. To open this, click on Edit Register Map inthe Edit menu and click on the device type to edit. Table 4 describes how to use each of the controls inthe TVP5154 Register Map editor.
Figure 16. TVP5154 Register Map Editor
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