User's Guide SLAU218 – August 2007 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK This user's guide describes the characteristics, operation, and use of the TLV320AIC3104EVM, both by itself and as part of the TLV320AIC3104EVM-PDK. This evaluation module (EVM) is a complete stereo audio codec with several inputs and outputs, extensive audio routing, mixing, and effects capabilities. A complete circuit description, schematic diagram, and bill of materials are also included. The following related documents are available through the Texas Instruments Web site at www.ti.com. EVM-Compatible Device Data Sheets Device Literature Number TLV320AIC3104 SLAS510 TAS1020B SLES025 REG1117-3.3 SBVS001 TPS767D318 SLVS209 SN74LVC125A SCAS290 SN74LVC1G125 SCES223 SN74LVC1G07 SCES296 Contents 1 EVM Overview ............................................................................................................... 3 2 EVM Description and Basics ............................................................................................... 3 3 TLV320AIC3104EVM-PDK Setup and Installation ...................................................................... 7 4 TLV320AIC3104EVM Software ............................................................................................ 9 Appendix A EVM Connector Descriptions ................................................................................... 37 Appendix B TLV320AIC3104EVM Schematic ............................................................................... 41 Appendix C TLV320AIC3104EVM Layout Views ........................................................................... 42 Appendix D TLV320AIC3104EVM Bill of Materials ......................................................................... 45 Appendix E USB-MODEVM Schematic ...................................................................................... 46 Appendix F USB-MODEVM Bill of Materials ................................................................................ 47 Appendix G USB-MODEVM Protocol ......................................................................................... 49 List of Figures 1 2 3 4 5 6 7 8 9 10 11 12 TLV320AIC3104EVM-PDK Block Diagram .............................................................................. 4 Default Software Screen ................................................................................................... 8 Device Selection Window ................................................................................................... 9 Interface Selection Window ................................................................................................ 9 I2C Address Selection Window .......................................................................................... 10 Default Configuration Tab ................................................................................................. 12 Audio Input Tab ............................................................................................................ 13 Bypass Paths ............................................................................................................... 14 Audio Interface Tab ....................................................................................................... 15 Clocks Tab ................................................................................................................. 17 GPIO Tab ................................................................................................................... 19 AGC Tab .................................................................................................................... 21 I2S, I2C are trademarks of Koninklijke Philips Electronics N.V. Windows is a trademark of Microsoft Corporation. SPI is a trademark of Motorola, Inc. LabView is a trademark of National Instruments. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 1 www.ti.com 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 C-1 C-2 C-3 C-4 C-5 C-6 Left AGC Settings .......................................................................................................... Advanced .................................................................................................................... Filters Tab .................................................................................................................. ADC High Pass Filters .................................................................................................... ADC High-Pass Filter Settings ........................................................................................... DAC Filters .................................................................................................................. De-emphasis Filters ........................................................................................................ Enabling Filters ............................................................................................................ Shelf Filters ................................................................................................................. EQ Filters ................................................................................................................... Analog Simulation Filters ................................................................................................. Preset Filters ............................................................................................................... User Filters ................................................................................................................. 3D Effect Settings ......................................................................................................... Output Stage Configuration Tab ......................................................................................... DAC/Line Outputs Tab .................................................................................................... High-Power Outputs Tab ................................................................................................. Command Line Interface Tab ............................................................................................ File Menu ................................................................................................................... Assembly layer ............................................................................................................. Top Layer.................................................................................................................... Layer 3 ....................................................................................................................... Layer 4 ....................................................................................................................... Silk Screen .................................................................................................................. Bottom Layer ................................................................................................................ 22 22 23 24 24 25 25 26 26 27 27 28 28 29 30 32 34 35 36 42 42 43 43 44 44 List of Tables 1 2 A-1 A-2 A-3 A-4 D-1 F-1 G-1 G-2 G-3 2 USB-MODEVM SW2 Settings ............................................................................................. 5 List of Jumpers ............................................................................................................... 5 Analog Interface Pinout .................................................................................................... 37 Alternate Analog Connectors ............................................................................................. 38 Digital Interface Pinout..................................................................................................... 39 Power Supply Pinout ....................................................................................................... 40 TLV320AIC3104EVM Bill of Materials ................................................................................... 45 USB-MODEVM Bill of Materials .......................................................................................... 47 USB Control Endpoint HIDSETREPORT Request .................................................................... 49 Data Packet Configuration ................................................................................................ 49 GPIO Pin Assignments .................................................................................................... 52 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com EVM Overview 1 EVM Overview 1.1 Features • • • • • Full-featured evaluation board for the TLV320AIC3104 stereo audio codec. Modular design for use with a variety of digital signal processor (DSP) and microcontroller interface boards. USB connection to PC provides power, control, and streaming audio data for easy evaluation. Onboard microphone for ADC evaluation Connection points for external control and digital audio signals for quick connection to other circuits/input devices. The TLV320AIC3104EVM-PDK is a complete evaluation kit, which includes a universal serial bus (USB)-based motherboard and evaluation software for use with a personal computer (PC) running the Microsoft Windows™ operating system (Win2000 or XP). 1.2 Introduction The TLV320AIC3104EVM is in the Texas Instruments modular EVM form factor, which provides direct evaluation of the device performance and operating characteristics, and eases software development and system prototyping. This EVM is compatible with the 5-6K Interface Evaluation Module (SLAU104) and the HPA-MCUINTERFACE (SLAU106) from Texas Instruments and additional third-party boards which support the Texas Instrument modular EVM format. The TLV320AIC3104EVM-PDK is a complete evaluation/demonstration kit, which includes a USB-based motherboard called the USB-MODEVM Interface board and evaluation software for use with a personal computer running the Microsoft Windows operating systems. The TLV320AIC3104EVM-PDK is operational with one USB cable connection to a personal computer. The USB connection provides power, control, and streaming audio data to the EVM for reduced setup and configuration. The EVM also provides external control signals, audio data, and power for advanced operation, which allows prototyping and connection to the rest of the development or system evaluation. 2 EVM Description and Basics This section provides information on the analog input and output, digital control, power and general connection of the TLV320AIC3104EVM. 2.1 TLV320AIC3104EVM-PDK Block Diagram The TLV320AIC3104EVM-PDK consists of two separate circuit boards, the USB-MODEVM and the TLV320AIC3104EVM. The USB-MODEVM is built around a TAS1020B streaming audio USB controller with an 8051-based core. The motherboard features two positions for modular EVM, or one double-wide serial modular EVM may be installed. The TLV320AIC3104EVM is one of the double-wide modular EVM that is designed to work with the USB-MODEVM. The simple diagram below (Figure 1) shows the how the TLV320AIC3104EVM is connected to the USB-MODEVM. The USB-MODEVM Interface board is intended to be used in USB mode, where control of the installed EVM is accomplished using the onboard USB controller device. Provision is made, however, for driving all the data buses (I2C, SPI™, I2S/AC97) externally. The source of these signals is controlled by SW2 on the USB-MODEVM. Refer to Table 1 for details on the switch settings. The USB-MODEVM has two EVM positions that allow for the connection of two small evaluation module or one larger evaluation module. The TLV320AIC3104EVM is designed to fit over both of the smaller evaluation module slots as shown below. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 3 www.ti.com EVM Description and Basics 2.1.1 USB-MODEVM Interface Board The simple diagram shown in Figure 1 shows only the basic features of the USB-MODEVM Interface board. Because the TLV320AIC3104EVM is a double-wide modular EVM, it is installed with connections to both EVM positions, which connects the TLV320AIC3104 digital control interface to the I2C port realized using the TAS1020B, as well as the TAS1020B digital audio interface.. In the factory configuration, the board is ready to use with the TLV320AIC3104EVM. To view all the functions and configuration options available on the USB-MODEVM board, see the USB-MODEVM Interface Board schematic in Appendix E. TLV320AIC310xEVM TLV320AIC310x USB-MODEVM EVM Position 1 Control Interface 2 SPI, I C TAS1020B USB 8051 Microcontroller EVM Position 2 USB 2 I S, AC97 Audio Interface Figure 1. TLV320AIC3104EVM-PDK Block Diagram 4 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com EVM Description and Basics 2.2 2.2.1 Default Configuration and Connections USB-MODEVM Table 1 provides a list of the SW2 settings on the USB=MODEVM. For use with the TLV320AIC3104EVM, SW-2 positions 1 through 7 should be set to ON, while SW-2.8 should be set to OFF. Table 1. USB-MODEVM SW2 Settings SW-2 Switch Number 2.2.2 Label Switch Description 1 A0 USB-MODEVM EEPROM I2C Address A0 ON: A0 = 0 OFF: A0 = 1 2 A1 USB-MODEVM EEPROM I2C Address A1 ON: A1 = 0 OFF: A1 = 1 3 A2 USB-MODEVM EEPROM I2C Address A2 ON: A2 = 0 OFF: A2 = 1 4 USB I2S I2S Bus Source Selection ON: I2S Bus connects to TAS1020 OFF: I2S Bus connects to USB-MODEVM J14 5 USB MCK I2S Bus MCLK Source Selection ON: MCLK connects to TAS1020 OFF: MCLK connects to USB-MODEVM J14 6 USB SPI SPI Bus Source Selection ON: SPI Bus connects to TAS1020 OFF: SPI Bus connects to USB-MODEVM J15 7 USB RST RST Source Selection ON: EVM Reset Signal comes from TAS1020 OFF: EVM Reset Signal comes from USB-MODEVM J15 8 EXT MCK External MCLK Selection ON: MCLK Signal is provided from USB-MODEVM J10 OFF: MCLK Signal comes from either selection of SW2-5 TLV320AIC3104 Jumper Locations Table 2 provides a list of jumpers found on the EVM and their factory default conditions. Table 2. List of Jumpers Jumper Default Position JMP1 2-3 When connecting 2-3, mic bias comes from the MICBIAS pin on the device; when connecting 1-2, mic bias is supplied from the power supply through a resistor, which the user must install. JMP2 Installed Connects onboard Mic to Left Microphone Input. JMP3 Installed Connects onboard Mic to Right Microphone Input. JMP4 Installed Provides a means of measuring IOVDD current. JMP5 Installed Provides a means of measuring AVDD_ADC current. JMP6 Installed Provides a means of measuring DVDD current. JMP7 Installed Provides a means of measuring DRVDD current. JMP8 Installed Provides a means of measuring AVDD_DAC current. JMP9 Installed Connects Analog and Digital Grounds. JMP10 3-5 When connecting 3 to 5, I2C is selected as control mode; when connecting 1 to 3, SPI is selected as control mode. When connecting 3 to 4, mode selection can be made by a logic level at J16.12 JMP11 3-5 In I2C control mode, this jumper sets the state of A0. When connecting 3 to 5, A0 = 0; when connecting 1 to 3, A0 = 1. In SPI control mode, connecting 3 to 4, SPI /SS is provided from J16.2 JMP12 3-5 In I2C control mode, this jumper sets the state of A1. When connecting 3 to 5, A1 = 0; when connecting 1 to 3, A1 = 1. In SPI control mode, connecting 3 to 4, SPI SCLK is provided from J16.3 JMP13 Installed When installed, shorts across the output capacitor on HPLOUT; remove this jumper if using AC-coupled output drive Jumper Description SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 5 www.ti.com EVM Description and Basics Table 2. List of Jumpers (continued) Jumper Default Position Jumper Description JMP14 Installed When installed, shorts across the output capacitor on HPLCOM; remove this jumper if using AC-coupled output drive JMP15 Installed When installed, shorts across the output capacitor on HPROUT; remove this jumper if using AC-coupled output drive JMP16 Installed When installed, shorts HPLCOM and HPRCOM. Use only if these signals are set to constant VCM. JMP17 Installed When installed, shorts across the output capacitor on HPRCOM; remove this jumper if using AC-coupled output drive JMP18 Open Selects onboard EEPROM as Firmware Source. JMP19 Open When installed, allows the USB-MODEVM to hardware reset the device under user control 2.3 2.3.1 Analog Signal Connections Analog Inputs The analog inputs to the EVM can be connected through two different methods. The analog input sources can be applied directly to J13 (top or bottom side) or through the analog headers (J1-3 and J6) around the edge of the board. The connection details of each header/connector can be found in Appendix A. 2.3.2 Analog Output The analog outputs to the EVM can be connected through two different methods. The analog outputs are available from the J13 and J14 (top or bottom) or they may be accessed through J4, J5, J7, J11,and J12 at the edges of the board. The connection details can be found in Appendix A. 2.4 2.4.1 Digital Signal Connections Digital Inputs and Outputs The digital inputs and outputs of the EVM can be monitored through J16 and J17. If external signals need to be connected to the EVM, digital inputs should be connected via J14 and J15 on the USB-MODEVM and the SW2 switch should be changed accordingly (see Section 2.2.1). The connector details are available in Section A.2. 2.4.2 Digital Controls The digital control signals can be applied directly to J16 and J17 (top or bottom side). The modular TLV320AIC3104EVM can also be connected directly to a DSP interface board, such as the 5-6KINTERFACE or HPA-MCUINTERFACE, or to the USB-MODEVM Interface board if purchased as part of the TLV320AIC3104EVM-PDK. See the product folders on the TI Web site for these evaluation modules or the TLV320AIC3104 for a current list of compatible interface and/or accessory boards. 2.5 Power Connections The TLV320AIC3104EVM can be powered independently when being used in stand-along operation or by the USB-MODEVM when it is plugged onto the motherboard. 6 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM-PDK Setup and Installation 2.5.1 Stand-Alone Operation When used as a stand-alone EVM, power is applied to J15 directly, making sure to reference the supplies to the appropriate grounds on that connector. CAUTION Verify that all power supplies are within the safe operating limits shown on the TLV320AIC3104 data sheet before applying power to the EVM. J15 provides connection to the common power bus for the TLV320AIC3104EVM. Power is supplied on the pins listed in Table A-4. The TLV320AIC3104EVM-PDK motherboard (the USB-MODEVM Interface board) supplies power to J15 of the TLV320AIC3104EVM. Power for the motherboard is supplied either through its USB connection or via terminal blocks on that board. 2.5.2 USB-MODEVM Operation The USB-MODEVM Interface board can be powered from several different sources: • USB • 6-Vdc to 10-Vdc AC/DC external wall supply (not included) • Lab power supply When powered from the USB connection, JMP6 should have a shunt from pins 1–2 (this is the default factory configuration). When powered from 6-V to 10-Vdc, either through the J8 terminal block or J9 barrel jack, JMP6 should have a shunt installed on pins 2–3. If power is applied in any of these ways, onboard regulators generate the required supply voltages and no further power supplies are necessary. If laboratory supplies are used to provide the individual voltages required by the USB-MODEVM Interface, JMP6 should have no shunt installed. Voltages are then applied to J2 (+5 VA), J3 (+5 VD), J4 (+1.8 VD), and J5 (+3.3 VD). The +1.8 VD and +3.3 VD can also be generated on the board by the onboard regulators from the +5VD supply; to enable this configuration, the switches on SW1 need to be set to enable the regulators by placing them in the ON position (lower position, looking at the board with text reading right-side up). If +1.8 VD and +3.3 VD are supplied externally, disable the onboard regulators by placing SW1 switches in the OFF position. Each power supply voltage has an LED (D1-D7) that lights when the power supplies are active. 3 TLV320AIC3104EVM-PDK Setup and Installation The following section provides information on using the TLV320AIC3104EVM-PDK, including set up, program installation, and program usage. Note: 3.1 If using the EVM in stand-alone mode, the software should be installed per below, but the hardware configuration may be different. Software Installation 1. Locate installation file on the CD-ROM included with the EVMs or download the latest version of the software located on the AIC3104 Product Page. If downloading the software from the TI Web site, an option is available to allow the user to be notified when the software is updated. 2. Unzip the installation file by clicking on the self-extracting zip file. 3. Install the EVM software by double-clicking the Setup executable and follow the directions. The user may be prompted to restart their computer. This should install all the TLV320AIC310x software and required drivers onto their PC. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 7 www.ti.com TLV320AIC3104EVM-PDK Setup and Installation 3.2 EVM Connections 1. Ensure that the TLV320AIC3104EVM is installed on the USB-MODEVM Interface board, aligning J13, J14, J15, J16, and J17 with the corresponding connectors on the USB-MODEVM. 2. Verify that the jumpers and switches are in their default conditions. 3. Attach a USB cable from the PC to the USB-MODEVM Interface board. The default configuration will provide power, control signals, and streaming audio via the USB interface from the PC. On the USB-MODEVM, LEDs D3-6 should light to indicate the power is being supplied from the USB. 4. For the first connection, the PC should recognize new hardware and begin an initialization process. The user may be prompted to identify the location of the drivers or allow the PC to automatically search for them. Allow the automatic detection option. 5. Once the PC confirms that the hardware is operational, D2 on the USB-MODEVM should light to indicate that the firmware has been loaded and the EVM is ready for use. If the LED is not lite, verify that the drivers were installed and trying to unplug and restart at Step 3. After the TLV320AIC3104EVM-PDK software installation (described in Section 3.2) is complete, evaluation and development with the TLV320AIC3104 can begin. The TLV320AIC310xEVM software can now be launched. The user should see an initial screen that looks similar to Figure 2. Figure 2. Default Software Screen 8 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4 TLV320AIC3104EVM Software The following section discusses the details and operation of the EVM software. Note: 4.1 For configuration of the codec, the TLV320AIC3104 block diagram located in the TLV320AIC3104 data sheet is a good reference to help determine the signal routing. Device Selection for Operation With AIC3104EVM The software that is installed provides operation for several devices. An initial window should appear that looks like Figure 3. For operation with the TLV320AIC3104EVM, the user should select AIC3104 from the pulldown menu and click Accept. The software will take a few seconds to configure the software for operation before proceeding. A progress bar should appear and show the status of the configuration. Figure 3. Device Selection Window 4.2 Interface Selection When the program first starts up, a small window (Figure 4) appears that gives two choices for the control interface: IC or SPI. Click on the interface that will be used by the EVM, as selected by the jumper settings detailed in Table 2. The setting of J10 should agree with the selection. 2C interface is the default interface used by the EVM. Figure 4. Interface Selection Window If the I2C interface is selected, a second window then appears which allows for selecting the address of the TLV320AIC3104. This window (see Figure 5) has two sliders for setting the state of A0 and A1. To allow proper communication with the EVM, these should match the settings of J11 and J12 (Table 2). When A0 and A1 are adjusted, the correct device address will be shown. Note that the actual I2C address shown and the address for the software may be different. This is done for programming reasons and the correct address should be used for system development . SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 9 www.ti.com TLV320AIC3104EVM Software If the I2C address is desired to be changed at any time during normal operation of the EVM, this menu can also be accessed from the pulldown menu under the Configuration item. This function can be used to help program multiple devices. Figure 5. I2C Address Selection Window Note: 10 For operation of the EVM in the default status, no changes are required on this panel. The default settings are A1=A0=0. Changes to this panel are only required when operating the EVM with a specific I2C address (other than default) or when evaluating multiple EVM. TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.3 Front Page Indicators and Functions Figure 2 illustrates the main screen of the EVM software. The indicators and buttons located above the tabbed section of the front page are visible regardless of which tab is currently being selected. At the top left of the screen is an Interface indicator. This indicator shows which interface is selected for controlling the TLV320AIC3104, either I2C or SPI. To the right of the Interface indicator is a group box called . This box indicates where the firmware being used is operating from—in this release, the firmware is on the USB-MODEVM, so the user should see USB-MODEVM in the box labeled Located On:. The version of the firmware appears in the Version box below this. To the right, the next group box contains controls for resetting the TLV320AIC3104. A software reset can be done by writing to a register in the TLV320AIC3104, and this is accomplished by pushing the button labeled Software Reset. The TLV320AIC3104 also may be reset by toggling a pin on the TLV320AIC3104, which is done by pushing the Hardware Reset button. CAUTION In order to perform a hardware reset, the RESET jumper (JMP19) must be installed and SW2-7 on the USB-MODEVM must be turned OFF. Failure to do either of these steps results in not generating a hardware reset or causing unstable operation of the EVM, which may require cycling power to the USB-MODEVM. Below the Firmware box, the Device Connected LED should be green when the EVM is connected. If the indicator is red, the EVM is not properly connected to the PC. Disconnect the EVM and verify that the drivers were correctly installed, then reconnect and try restarting the software. One the upper right portion of the screen, several indicators are located which provide the status of various portions of the TLV320AIC3104. These indicators are activated by pressing the Indicator Updates button below the Device Connected LED. These indicators, as well as the other indicators on this panel, are updated only when the software's front panel is inactive, once every 20ms. The ADC Overflow and DAC Overflow indicators light when the overflow flags are set in the TLV320AIC3104. Below these indicators are the AGC Noise Threshold Exceeded indicators that show when the AGC noise threshold is exceeded. To the far right of the screen, the Short Circuit Detect indicators show when a short-circuit condition is detected, if this feature has been enabled. Below the short-circuit indicators, the AGC Gain Applied indicators use a bar graph to show the amount of gain which has been applied by the AGC, and indicators that light when the AGC is saturated. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 11 www.ti.com TLV320AIC3104EVM Software 4.4 Default Configuration (Presets) Tab The Default Configuration Tab Figure 6 provides several different preset configurations of the codec. The Preset Configurations buttons allow the user to choose from the provided defaults. When the selection is made, the Preset Configuration Description are shows a summary of the codec setup associated with the choice made. If the choice is acceptable, the Load button can be pressed and the preset configuration will be loaded into the codec. The user can change to the Command Line Interface Tab (see Figure 30) to view the actual settings that were programmed into the codec. Figure 6. Default Configuration Tab 12 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.5 Audio Input/ADC Tab Figure 7. Audio Input Tab The Audio Input/ADC Tab allows control of the analog input mixer and the ADC. The controls are displayed to look similar to an audio mixing console (see Figure 7). Each analog input channel has a vertical strip that corresponds to that channel. By default, all inputs are muted when the TLV320AIC3104 is powered up. To route an analog input to the ADC: 1. Select the Input Mode button to correctly show if the input signal is single-ended (SE) or fully-differential (Diff). Inputs that are single-ended should be made to the positive signal terminal. 2. Click on the button of the analog input channel that corresponds to the correct ADC. The caption of the button should change to Active. Note that the user can connect some channels to both ADCs, while others will only connect to one ADC. 3. Adjust the Level control to the desired attenuation for the connected channel. This level adjustment can be done independently for each connection. The TLV320AIC3104 offers a programmable microphone bias that can either be powered down or set to 2 V, 2.5 V, or the power supply voltage of the ADC (AVDD_ADC). Control of the microphone bias (mic bias) voltage is accomplished by using the Mic Bias pulldown menu button above the last two channel strips. To use the onboard microphone, JMP2 and JMP3 must be installed and nothing should be plugged into J6. In order for the mic bias settings in the software to take effect, JMP1 should be set to connect positions 2 and 3, so that mic bias is controlled by the TLV320AIC3104. In the upper right portion of this tab are controls for Weak Common Mode Bias. Enabling these controls will result in unselected inputs to the ADC channels to be weakly biased to the ADC common mode voltage. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 13 www.ti.com TLV320AIC3104EVM Software Below these controls are the controls for the ADC PGA, including the master volume controls for the ADC inputs. Each channel of the ADC can be powered up or down as needed using the Powered Up buttons. PGA soft-stepping for each channel is selected using the pulldown menu control. The two large knobs set the actual ADC PGA Gain and allow adjustment of the PGA gains from 0 dB to 59.5 dB in 0.5-dB steps (excluding Mute). At the extreme counterclockwise rotation, the channel is muted. Rotating the knob clockwise increases the PGA gain, which is displayed in the box directly above the volume control. 4.6 Bypass Paths Figure 8. Bypass Paths The Bypass Paths tab shows the active and passive bypass paths available for control. The passive analog bypass paths allow the inputs to be routed straight through the device to the outputs without turning on any of the internal circuitry. This provides a signal path through the device with minimal power consumption. The active bypass paths allow the inputs to bypass the ADC and DAC functional blocks and be routed to the analog output mixers to be summed into the output amplifiers. 14 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.7 Audio Interface Tab Figure 9. Audio Interface Tab The Audio Interface tab (Figure 9) allows configuration of the audio digital data interface to the TLV320AIC3104. The interface mode may be selected using the Transfer Mode control—selecting either I2S mode, DSP mode, or Right- or Left-Justified modes. Word length can be selected using the Word Length control, and the bit clock rate can also be selected using the Bit Clock rate control. The Data Word Offset, used in TDM mode (see the TLV320AIC3104 data sheet) can also be selected on this tab. Along the bottom of this tab are controls for choosing the BLCK and WCLK as being either inputs or outputs. With the codec configured in Slave mode, both the BCLK and WCLK are set to inputs. If the codec is in Master mode, then BCLK and WCLK are configured as outputs. Additionally, two buttons provide the option for placing the DOUT line in a 3-state mode when there is not valid data and transmitting BLCK and WCLK when the codec is powered down. Re-synchronization of the audio bus is enabled using the controls in the lower right corner of this screen. Re-synchronization is done if the group delay changes by more than ±FS/4 for the ADC or DAC sample rates (see the TLV320AIC3104 data sheet). The channels can be soft muted when doing the re-sync if the Soft Mute button is enabled. In the upper right corner of this tab is the Digital Mic Functionality control. The TLV320AIC3104 can accept a data stream from a digital microphone, which would have its clock pin connected to the TLV320AIC3104 GPIO1 pin, and the mic data connected to the GPIO2 pin. Once the digital microphone functionality is enabled, the Digital Mic/ADC Selection selection allows the user to choose if one or two digital microphones are connected to the codec. If only one digital microphone is connected, then the remaining ADC can be used with an analog input signal from the analog input pins. Refer to section SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 15 www.ti.com TLV320AIC3104EVM Software Section 4.9 for a discussion of setting the GPIO pin options. The TLV320AIC3104 can provide a modulator clock to the digital microphone with oversampling ratios (OSR) of 128, 64, or 32. For a detailed discussion of how to connect a digital microphone on this platform, refer to the application note Using the Digital Microphone Function on TLV320AIC3104 with AIC33EVM/USB-MODEVM System (SLAA275), available for download at www.ti.com. The default mode for the EVM is configured as 44.1 kHz, 16-bit, I2 words, and the codec is a slave (BCLK and WCLK are supplied to the codec externally). For use with the PC software and the USB-MODEVM, the default settings should be used; no change to the software are required. 16 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.8 Clocks Tab Figure 10. Clocks Tab The TLV320AIC3104 provides a phase-locked loop (PLL) that allows flexibility in the clock generation for the ADC and DAC sample rates. The Clocks tab contains the controls that can be used to configure the TLV320AIC3104 for operation with a wide range of master clocks. See the Audio Clock Generation Processing figure in the TLV320AIC3104 data sheet for further details of selecting the correct clock settings. For use with the PC software and the USB-MODEVM, the clock settings must be set a certain way. If the settings are changed from the default settings which allow operation from the USB-MODEVM clock reference, the EVM settings can be restored automatically by pushing the Load EVMS Clock Settings button at the bottom of this tab. Note that changing any of the clock settings from the values loaded when this button is pushed may result in the EVM not working properly with the PC software or USB interface. If an external audio bus is used (audio not driven over the USB bus), then settings may be changed to any valid combination. See Figure 10. 4.8.1 Configuring the codec clocks and Fsref calculation The codec clock source is chosen by the CODEC_CLK Source control. When this control is set to CLKDIV_OUT, the PLL is not used; when set to PLLDIV_OUT, the PLL is used to generate the clocks. Note: Per the TLV320AIC3104 data sheet, the codec should be configured to allow the value of Fsref to fall between the values of 39 kHz to 53 kHz. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 17 www.ti.com TLV320AIC3104EVM Software 4.8.1.1 Use Without PLL Setting up the TLV320AIC3104 for clocking without using the PLL permits the lowest power consumption by the codec. The CLKDIV_IN source can be selected as either MCLK, GPIO2, or BCLK, the default is MCLK. The CLKDIV_IN frequency is then entered into the CLKDIV_IN box, in megahertz (MHz). The default value shown, 11.2896 MHz, is the frequency used on the USB-MODEVM board. This value is then divided by the value of Q, which can be set from 2 to 17; the resulting CLKDIV_OUT frequency is shown in the indicator next to the Q control. The result frequency is shown as the Actual Fsref. 4.8.1.2 Use With The PLL When PLLDIV_OUT is selected as the codec clock source, the PLL will be used. The PLL clock source is chosen using the PLLCLK_IN control, and may be set to either MCLK, GPIO2, or BCLK. The PLLCLK_IN frequency is then entered into the PLLCLK_IN Source box. The PLL_OUT and PLLDIV_OUT indicators show the resulting PLL output frequencies with the values set for the P, K, and R parameters of the PLL. See the TLV320AIC3104 data sheet for an explanation of these parameters. The parameters can be set by clicking on the up/down arrows of the P, K, and R combo boxes, or they can be typed into these boxes. The values can also be calculated by the PC software. To use the PC software to find the ideal values of P, K, and R for a given PLL input frequency and desired Fsref: 1. Verify the correct reference frequency is entered into the PLLCLK_IN Source box in megahertz (MHz) 2. The desired Fsref should be set using the Fsref switch. 3. Push the Search for Ideal Settings button. The software will start searching for ideal combinations of P, K, and R which achieve the desired Fsref. The possible settings for these parameters are displayed in the spreadsheet-like table labeled Possible Settings. 4. Click on a row in this table to select the P, K, and R values located in that row. Notice that when this is done, the software updates the P, K, R, PLL_OUT, and PLLDIV_OUT readings, as well as the Actual Fsref and Error displays. The values show the calculations based on the values that were selected. This process does not actually load the values into the TLV320AIC3104, however; it only updates the displays in the software. If more than one row exists, the user can choose the other rows to see which of the possible settings comes closest to the ideal settings. When a suitable combination of P, K, and R have been chosen, pressing the Load Settings into Device? button will download these values into the appropriate registers on the TLV320AIC3104. 4.8.1.3 Setting the ADC and DAC Sampling Rates The Fsref frequency that is determine either enabling or bypassing the PLL (see Section 4.8.1.1 or Section 4.8.1.2) is used to determine the actual ADC and DAC sampling rates. Using the NADC and NDAC factors the sampling rates are derived from the Fsref. If dual rate mode is desired, this option can be enabled for either the ADC or DAC by pressing the corresponding Dual Rate Mode button. The ADC and DAC sampling rates are shown in the box to the right of each control. 18 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.9 GPIO Tab Figure 11. GPIO Tab The GPIO tab (see Figure 11) selects options for the general-purpose inputs and outputs (GPIO) of the TLV320AIC3104. Many pins on the TLV320AIC3104 are denoted as multifunction pins, meaning they may be used for many different purposes. The GPIO1 group box contains controls for setting options for the GPIO1 pin. The Function control selects the function of GPIO1 from the following: • ADC Word Clock • An output clock derived from the reference clock (see TLV320AIC3104 data sheet) • Interrupt output pin to signal: – Short Circuit – AGC Noise Threshold detection – Jack/Headset detection • For use as an interrupt output, the behavior of the interrupt can be selected using the Interrupt Duration control. A Single, 2ms pulse can be delivered when the selected interrupt occurs, or Continuous Pulses can be generated signaling the interrupt. • Alternate I2S Word Clock • A digital microphone output–modulator clock for use with a digital microphone (see Section 4.7 and the TLV320AIC3104 data sheet). • A general-purpose I/O pin – If selected as a General Purpose Input, the state of the GPIO1 pin is reflected by the Input Level indicator. If selected as a General Purpose Output, the state of the GPIO1 pin can be set by using the Output Level button. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 19 www.ti.com TLV320AIC3104EVM Software In similar fashion, the GPIO2 pin can configured as the following using the Function control in the GPIO2 group box. • An alternate I2S bus • An interrupt output • A general-purpose I/O pin • A digital microphone input The other controls in this group box work the same as the corresponding controls for GPIO1. When the control interface for the TLV320AIC3104 is selected to be I2C, the SDA and SCL group boxes and controls within them are disabled. If SPI mode is selected, however, the SDA and SCL pins can be used as GPIO, and selected as either inputs or outputs using the SDA Function and SCL Function controls. The Output Level and Input Level controls function for these pins in the same way that they do for GPIO1 or GPIO2. When the control interface for the TLV320AIC3104 is selected to be SPI, the Multifunction Pins group box and controls within it are disabled, because these pins are used by the SPI bus. When in I2C mode, however, these controls are enabled. The MFP3 Function control selects MFP3 to be used either as a General Purpose Input or as the data input line for the alternate I2S bus. The MFP2 Function control selects MFP2 as either Disabled or as a General Purpose Output. When used as an output, the MFP2 Output Level control sets the output state of the MFP2 pin either high or low. The states of the MFP0, MFP1 and MP3 inputs are indicated by the three indicator lights on the right-hand side of this group box. 20 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.10 AGC Tab Figure 12. AGC Tab The AGC tab (see Figure 12) consists of two identical sets of controls, one for the left channel and the other for the right channel. The AGC function is described in the TLV320AIC3104 data sheet. The AGC can be enabled for each channel using the Enable AGC button. Target gain, Attack time in milliseconds, Decay time in milliseconds, and the Maximum PGA Gain Allowed can all be set, respectively, using the four corresponding knobs in each channel. The TLV320AIC3104 allows for the Attack and Decay times of the AGC to be set up in two different modes, standard and advanced. The Left/Right AGC Settings button determines the mode selection. The Standard mode provides several preset times that can be selected by adjustments made to the Attack and Decay knobs. If finer control over the times is required, then the Advanced mode is selected to change to the settings. When the Advanced mode is enabled, two tabs should appear that allow separate, advanced control of the Attack and Delay times of the AGC (see Figure 13 and Figure 14). These options allow selection of the base time as well as a multiplier to achieve the actual times shown in the corresponding text box. The Use advanced settings? button should be enabled to program the registers with the correct values selected via the pulldown options for base time and multiplier. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 21 www.ti.com TLV320AIC3104EVM Software Figure 13. Left AGC Settings Figure 14. Advanced Noise gate functions, such as Hysteresis, Enable Clip stepping, Threshold (dB), Signal Detect Debounce (ms), and Noise Detect Debounce (ms) are set using the corresponding controls in the Noise Gate group box for each channel. 22 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.11 Filters Tab Figure 15. Filters Tab The TLV320AIC3104 has an advanced feature set for applying digital filtering to audio signals. This tab controls all of the filter features of the TLV320AIC3104. In order to use this tab and have plotting of filter responses correct, the DAC sample rate must be set correctly. Therefore, the clocks must be set up correctly in the software following the discussion in Section 4.8. See Figure 15. The AIC3104 digital filtering is available to both the ADC and DAC. The ADC has optional high pass filtering and allows the digital output from the ADC through digital effects filtering before exiting the codec through the PCM interface. Likewise, the digital audio data can be routed through the digital effects filtering before passing through the optional de-emphasis filter before the DAC. The digital effects filtering can only be connected to either the ADC or DAC, not both at the same time. The Figure 15 is divided into several areas. The left side of the tab, is used to select between the DAC or ADC filters and assist in the selection and calculating the desired filter coefficients. The right hand side of the tab shows a frequency response plot of the digital effects filter selected and the coefficients that are programmed into the device. The plots show the magnitude and phase response of each biquad section, plus the combined responses of the two biquad filters. Note that the plot shows only the responses of the effect filters, not the combined response of those filter along with the de-emphasis and ADC high-pass filters. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 23 www.ti.com TLV320AIC3104EVM Software 4.11.1 ADC Filters 4.11.1.1 High Pass Filter Figure 16. ADC High Pass Filters The TLV320AIC3104 ADC provides the option of enabling a high-pass filter, which helps to reduce the effects of DC offsets in the system. The Figure 16 tab shows the options for programming various filter associated with the ADC. The high-pass filter has two modes: standard and programmable. The standard high-pass filter option (Figure 17) allows for the selection of the high-pass filter frequency from several preset options that can be chosen with the Left ADC HP Filter and Right ADC HP Filter controls. The four options for this setting are disabled, or three different corner frequencies which are based on the ADC sample rate. Figure 17. ADC High-Pass Filter Settings For custom filter requirements, the programmable function allows custom coefficients to achieve a different filter than provided by the preset filters. The controls for the programmable high-pass filter are located under the Programmable Filters heading. The process should following the following steps: 1. Enter The filter coefficients can be entered in the HP Filter controls near the bottom of the tab. 2. Press the Download Coefficients button to download the coefficients to the codec registers. 3. Enable the Programmable High-Pass Filters by selecting the Left ADC and Right ADC buttons. The programmable high-pass filter should now be correctly programmed and enabled. The ADC can now be enabled with the high-pass filter. 4.11.1.2 Digital Effects Filter - ADC The ADC digital outputs stream can be routed through the digital effects filter in the codec to allow custom audio performance. The digital effects filter cannot operate on both the ADC or DAC at the same time. The digital effects filter operation is discussed in Section 4.11.3 24 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.11.2 DAC Filters Figure 18. DAC Filters 4.11.2.1 De-emphasis Filters The de-emphasis filters used in the TLV320AIC 3104 can be programmed as described in the TLV320AIC3104 data sheet, using this tab (Figure 19). Enter the coefficients for the de-emphasis filter response desired. While on this tab, the de-emphasis response will be shown on the Effect Filter Response graph; however, note that this response is not included in graphs of other effect responses when on the other filter design tabs. Figure 19. De-emphasis Filters 4.11.2.2 DAC Digital Effects Filter The digital audio input stream can be routed through the digital effects filter in the codec before routing to the DAC to allow custom audio performance. The digital effects filter cannot operate on both the ADC or DAC at the same time. The digital effects filter operation is discussed in Section 4.11.3 SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 25 www.ti.com TLV320AIC3104EVM Software 4.11.3 Digital Effects Filters The digital effect filters (the biquad filters) of the TLV320AIC3104 are selected using the check boxes shown in Figure 20. The De-emphasis filters are described in the TLV320AIC3104 data sheet, and their coefficients may be changed (see Figure 18). Figure 20. Enabling Filters When designing filters for use with TLV320AIC3104, the software allows for several different filter types to be used. These options are shown on a tab control in the lower left corner of the screen. When a filter type is selected, and suitable input parameters defined, the response will be shown in the Effect Filter Response graph. Regardless of the setting for enabling the Effect Filter, the filter coefficients are not loaded into the TLV320AIC3104 until the Download Coefficients button is pressed. To avoid noise during the update of coefficients, it is recommended that the user uncheck the Effect Filter enable check boxes before downloading coefficients. Once the desired coefficients are in the TLV320AIC3104, enable the Effect Filters by checking the boxes again. 4.11.3.1 Shelf Filters A shelf filter is a simple filter that applies a gain (positive or negative) to frequencies above or below a certain corner frequency. As shown in Figure 21, in Bass mode a shelf filter applies a gain to frequencies below the corner frequency; in Treble mode the gain is applied to frequencies above the corner frequency. Figure 21. Shelf Filters To use these filters, enter the gain desired and the corner frequency. Choose the mode to use (Bass or Treble); the response will be plotted on the Effect Filter Response graph. 26 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.11.3.2 EQ Filters EQ, or parametric, filters can be designed on this tab (see Figure 22). Enter a gain, bandwidth, and a center frequency (Fc). Either bandpass (positive gain) or band-reject (negative gain) filters can be created Figure 22. EQ Filters 4.11.3.3 Analog Simulation Filters Biquads are quite good at simulating analog filter designs. For each biquad section on this tab, enter the desired analog filter type to simulate (Butterworth, Chebyshev, Inverse Chebyshev, Elliptic or Bessel). Parameter entry boxes appropriate to the filter type will be shown (ripple, for example, with Chebyshev filters, etc.). Enter the desired design parameters and the response will be shown. (See Figure 23.) Figure 23. Analog Simulation Filters SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 27 www.ti.com TLV320AIC3104EVM Software 4.11.3.4 Preset Filters Many applications are designed to provide preset filters common for certain types of program material. This tab (see Figure 24) allows selection of one of four preset filter responses - Rock, Jazz, Classical, or Pop. Figure 24. Preset Filters 4.11.3.5 User Filters If filter coefficients are known, they can be entered directly on this tab (see Figure 25) for both biquads for both left and right channels. The filter response will not be shown on the Effect Filter Response graph for user filters. Figure 25. User Filters 28 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.11.3.6 3D Effect The 3D effect is described in the TLV320AIC3104 data sheet. It uses the two biquad sections differently than most other effect filter settings. To use this effect properly, make sure the appropriate coefficients are already loaded into the two biquad sections. The User Filters tab may be used to load the coefficients. See Figure 26. Figure 26. 3D Effect Settings To enable the 3D effect, check the 3D Effect On box. The Depth knob controls the value of the 3D Attenuation Coefficient. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 29 www.ti.com TLV320AIC3104EVM Software 4.12 Output Stage Configuration Tab Figure 27. Output Stage Configuration Tab The Output Stage Configuration tab (Figure 27) allows for setting various features of the output drivers. The Configuration control may be set as either Fully-Differential or Pseudo-Differential. This control is used to determine if the output stage is being used to drive a fully differential output load or a output load where one of the outputs if referenced to a common-mode voltage (pseudo-differential). The output Coupling control can be chosen as either Capless or AC-coupled. This setting should correspond to the setting of the hardware switch (SW1) on the TLV320AIC3104EVM. The common mode voltage of the outputs may be set to 1.35 V, 1.5 V, 1.65 V, or 1.8 V using the Common Mode Voltage control. The TLV320AIC3104 offers several options to help reduce the turnon/off pop of the output amplifiers. The Power-On Delay of the output drivers can be set using the corresponding control from 0's up to 4 seconds. Ramp-Up Step Timing can also be adjusted from 0ms to 4ms. The outputs can be set to soft-step their volume changes, using the Output Volume Soft Stepping control, and set to step once per Fs period, once per two Fs periods, or soft-stepping can be disabled altogether. The high power outputs of the TLV320AIC3104 can be configured to go to a weak common-mode voltage when powered down. The source of this weak common-mode voltage can be set on this tab with the Weak Output CM Voltage Source drop-down. Choices for the source are either a resistor divider off the AVDD_DAC supply, or a bandgap reference. See the data sheet for more details on this option. 30 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software Headset detection features are enabled using the Enable button in the Headset Detection group box. When enabled, the indicators in the HS/Button Detect group box will light when either a button press or headset is detected. When a headset is detected, the type of headset is displayed in the Detection Type indicator. Debounce times for detection are set using the Jack Detect Debounce and Button Press Debounce controls, which offer debounce times in varying numbers of milliseconds. See the TLV320AIC3104 data sheet for a discussion of headset detection. Output short-circuit protection can be enabled in the Short Circuit Protection group box. Short Circuit Protection can use a current-limit mode, where the drivers will limit current output if a short-circuit condition is detected, or in a mode where the drivers will power down when such a condition exists. The I2C Bus Error Detection button allows the user to enable circuitry which will set a register bit (Register 107, D0) if an I2C bus error is detected. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 31 www.ti.com TLV320AIC3104EVM Software 4.13 DAC/Line Outputs Tab Figure 28. DAC/Line Outputs Tab The DAC/Line Outputs tab controls the DAC power and volume, as well as routing of digital data to the DACs and the analog line output from the DACs. (See Figure 28.) 4.13.1 DAC Controls On the left side of this tab are controls for the left and right DACs. In similar fashion as the ADC, the DAC controls are set up to allow powering of each DAC individually, and setting the output level. Each channel's level can be set independently using the corresponding Volume knob. Alternately, by checking the Slave to Right box, the left channel Volume can be made to track the right channel Volume knob setting; checking the Slave to Left box causes the right channel Volume knob to track the left Volume knob setting. Data going to the DACs is selected using the drop-down boxes under the Left and Right DAC Datapath. Each DAC channel can be selected to be off, use left channel data, use right channel data, or use a mono mix of the left and right data. Analog audio coming from the DACs is routed to outputs using the Output Path controls in each DAC control panel. The DAC output can be mixed with the analog inputs (LINE2L, LINE2R, PGA_L, PGA_R) and routed to the Line or High Power outputs using the mixer controls for these outputs on this tab (for the line outputs) or on the High Power Outputs tab (for the high power outputs). If the DAC is to be routed directly to either the Line or HP outputs, these can be selected as choices in the Output Path control. Note that if the Line or HP outputs are selected as the Output Path, the mixer controls on this tab and the High Power Output tabs have no effect. 32 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.13.2 Line Output Mixers On the right side of this tab are horizontal panels where the analog output mixing functions for the line outputs are located. Each line output master volume is controlled by the knob at the far right of these panels, below the line output labels. The output amplifier gain can be muted or set at a value between 0 and 9 dB in 1-dB steps. Power/Enabled status for the line output can also be controlled using the button below this master output knob (Powered Up). If the DAC Output Path control is set to Mix with Analog Inputs, the six knobs in each panel can be used to set the individual level of signals routed and mixed to the line output. LINE2L, LINE2R, PGA_L, PGA_R, and DAC_L and DAC_R levels can each be set to create a custom mix of signals presented to that particular line output. Note: if the DAC Output Path control is set to anything other than Mix with Analog Inputs, these controls have no effect. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 33 www.ti.com TLV320AIC3104EVM Software 4.14 High-Power Outputs Tab Figure 29. High-Power Outputs Tab This tab contains four horizontal groupings of controls, one for each of the high power outputs. Each output has a mixer to mix the LINE2L, LINE2R, PGA_L, PGA_R, DAC_L and DAC_R signals, assuming that the DACs are not routed directly to the high power outputs (see Section 4.13). At the left of each output strip is a Powered Up button that controls whether the corresponding output is powered up or not. The When powered down button allows the outputs to be tri-stated or driven weakly to a the output common mode voltage. The HPxCOM outputs (HPLCOM and HPRCOM) can be used as independent output channels or can be used as complementary signals to the HPLOUT and HPROUT outputs. In these complementary configurations, the HPxCOM outputs can be selected as Differential of HPxOUT signals to the corresponding outputs or may be set to be a common mode voltage (Constant VCM Out. When used in these configurations, the Powered Up button for the HPxCOM output is disabled, as the power mode for that output will track the power status of the HPL or HPR output that the COM output is tracking. The HPRCOM Config selector allows a couple additional options compared to the HPLCOM Config selector. Differential of HPLCOM allows the HPRCOM to be the complementary signal of HPLCOM for driving a differential load between the HPxCOM outputs. The selector also allows Ext. Feedback/HPLCOM constant VCM as an option. This option is used when the high power outputs are configured for Capless output drive, where HPLCOM is configured as Constant VCM Out. The feedback option provides feedback to the output and lowers the output impedance of HPLCOM. At the right side of the output strip is a master volume knob for that output, which allows the output amplifier gain to be muted or set from 0 to 9 dB in 1-dB steps. 34 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com TLV320AIC3104EVM Software 4.15 Command Line Interface Tab A simple scripting language controls the TAS1020 on the USB-MODEVM from the LabView™-based PC software. The main program controls, described previously, do nothing more than write a script which is then handed off to an interpreter that sends the appropriate data to the correct USB endpoint. Because this system is script-based, provision is made in this tab for the user to view the scripting commands created as the controls are manipulated, as well as load and execute other scripts that have been written and saved (see Figure 30). This design allows the software to be used as a quick test tool or to help provide troubleshooting information in the rare event that the user encounters problem with this EVM. Figure 30. Command Line Interface Tab A script is loaded into the command buffer, either by operating the controls on the other tabs or by loading a script file. When executed, the return packets of data which result from each command will be displayed in the Read Data array control. When executing several commands, the Read Data control shows only the results of the last command. To see the results after every executed command, use the logging function described below. The File menu (Figure 31) provides some options for working with scripts. The first option, Open Command File..., loads a command file script into the command buffer. This script can then be executed by pressing the Execute Command Buffer button. The second option is Log Script and Results..., which opens a file save dialog box. Choose a location for a log file to be written using this file save dialog. When the Execute Command Buffer button is pressed, the script will run and the script, along with resulting data read back during the script, will be saved to the file specified. The log file is a standard text file that can be opened with any text editor, and looks much like the source script file, but with the additional information of the result of each script command executed. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM and TLV320AIC3104EVM-PDK 35 www.ti.com TLV320AIC3104EVM Software The third menu item is a submenu of Recently Opened Files. This is simply a list of script files that have previously been opened, allowing fast access to commonly-used script files. The final menu item is Exit, which terminates the TLV320AIC3104EVM software. Figure 31. File Menu Under the Help menu is an About... menu item which displays information about the TLV320AIC3104EVM software. The actual USB protocol used as well as instructions on writing scripts are detailed in the following subsections. While it is not necessary to understand or use either the protocol or the scripts directly, understanding them may be helpful to some users. 36 TLV320AIC3104EVM and TLV320AIC3104EVM-PDK SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Appendix A Appendix A EVM Connector Descriptions This appendix contains the connection details for each of the main header connectors on the EVM. A.1 A.1.1 Analog Interface Connectors Analog Dual-Row Header Details (J13 and J14) For maximum flexibility, the TLV320AIC3104EVM is designed for easy interfacing to multiple analog sources. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin dual row header/socket combination at J13 and J14. These headers/sockets provide access to the analog input and output pins of the device. Consult Samtec at www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options. Table A-1 summarizes the analog interface pinout for the TLV320AIC3104EVM.. Table A-1. Analog Interface Pinout PIN NUMBER SIGNAL DESCRIPTION J13.1 HPLCOM High-Power Output Driver (Left Minus or Multifunctional) J13.2 HPLOUT High-Power Output Driver (Left Plus) J13.3 HPRCOM High-Power Output Driver (Right Minus or Multifunctional) J13.4 HPROUT High-Power Output Driver (Right Plus) J13.5 LINE1LM MIC1 or LINE1 Analog Input (Left Minus or Multifunctional) J13.6 LINE1LP MIC1 or LINE1 Analog Input (Left Plus or Multifunctional) J13.7 LINE1RM MIC1 or LINE1 Analog Input (Right Minus or Multifunctional) J13.8 LINE1RP MIC1 or LINE1 Analog Input (Right Plus or Multifunctional) J13.9 AGND Analog Ground J13.10 MIC3L MIC3 Input (Left or Multifunctional) J13.11 AGND Analog Ground J13.12 MIC3R MIC3 Input (Right or Multifunctional) J13.13 AGND Analog Ground J13.14 MICBIAS Microphone Bias Voltage Output J13.15 NC Not Connected J13.16 MICDET Microphone Detect J13.17 AGND Analog Ground J13.18 NC Not Connected J13.19 AGND Analog Ground J13.20 NC Not Connected J14.1 LINE2RM MIC2 or LINE2 Analog Input (Right Minus or Multifunctional) J14.2 LINE2RP MIC2 or LINE2 Analog Input (Right Plus or Multifunctional) J14.3 LINE2LM MIC2 or LINE2 Analog Input (Left Minus or Multifunctional) J14.4 LINE2RP MIC2 or LINE2 Analog Input (Left Plus or Multifunctional) J14.5 MONO_LOP Mono-Line Output (Plus) J14.6 MONO_LOM Mono-Line Output (Minus) J14.7 LEFT_LOP Left-Line Output (Plus) J14.8 LEFT_LOM Left-Line Output (Minus) J14.9 AGND Analog Ground J14.10 RIGHT_LOP Right-Line Output (Plus) J14.11 AGND Analog Ground J14.12 RIGHT_LOM Right-Line Output (Minus) J14.13 AGND Analog Ground J14.14 NC Not Connected J14.15 NC Not Connected J14.16 NC Not Connected SLAU218 – August 2007 Submit Documentation Feedback EVM Connector Descriptions 37 www.ti.com Analog Interface Connectors Table A-1. Analog Interface Pinout (continued) A.1.2 PIN NUMBER SIGNAL DESCRIPTION J14.17 AGND Analog Ground J14.18 NC Not Connected J14.19 AGND Analog Ground J14.20 NC Not Connected Analog Screw Terminal Details (J1-5 and J8-12) In addition to the analog headers, the analog inputs and outputs can also be accessed through alternate connectors, either screw terminals or audio jacks. The stereo microphone input is also tied to J6 and the stereo headphone output (the HP set of outputs) is available at J7. Table A-2 summarizes the screw terminals available on the TLV320AIC3104EVM. Table A-2. Alternate Analog Connectors 38 EVM Connector Descriptions DESIGNATOR PIN 1 PIN 2 J1 LINE1LP LINE1LM J2 LINE1RP LINE1RM J3 LINE2LP LINE2LM J4 LINE2RP LINE2RM J5 MIC3 IN LEFT MIC3 IN RIGHT J8 MONO OUT - MONO OUT + J9 LEFT OUT - LEFT OUT + J10 RIGHT OUT - RIGHT OUT + J11 (+) HPLOUT (-) HPLCOM J12 (+) HPROUT (-) HPRCOM PIN3 AGND SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Digital Interface Connectors (J16 and J17) A.2 Digital Interface Connectors (J16 and J17) The TLV320AIC3104EVM is designed to easily interface with multiple control platforms. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin dual row header/socket combination at J16 and J17. These headers/sockets provide access to the digital control and serial data pins of the device. Consult Samtec at www.samtec.com or call 1-800- SAMTEC-9 for a variety of mating connector options. Table A-3 summarizes the digital interface pinout for the TLV320AIC3104EVM. Table A-3. Digital Interface Pinout PIN NUMBER SIGNAL DESCRIPTION J16.1 NC Not Connected J16.2 GPIO1 General-Purpose Input/Output #1 J16.3 SCLK SPI Serial Clock J16.4 DGND Digital Ground J16.5 NC Not Connected J16.6 GPIO2 General Purpose Input/Output #2 J16.7 /SS SPI Chip Select J16.8 RESET INPUT Reset signal input to AIC33EVM J16.9 NC Not Connected J16.10 DGND Digital Ground J16.11 MOSI SPI MOSI Slave Serial Data Input J16.12 SPI SELECT Select Pin (SPI vs I2C Control Mode) J16.13 MISO SPI MISO Slave Serial Data Output J16.14 AIC33 RESET Reset J16.15 NC Not Connected J16.16 SCL I2C Serial Clock J16.17 NC Not Connected J16.18 DGND Digital Ground J16.19 NC Not Connected J16.20 SDA I2C Serial Data Input/Output J17.1 NC Not Connected J17.2 NC Not Connected J17.3 BCLK Audio Serial Data Bus Bit Clock (Input/Output) J17.4 DGND Digital Ground J17.5 NC Not Connected J17.6 NC Not Connected J17.7 WCLK Audio Serial Data Bus Word Clock (Input/Output) J17.8 NC Not Connected J17.9 NC Not Connected J17.10 DGND Digital Ground J17.11 DIN Audio Serial Data Bus Data Input (Input) J17.12 NC Not Connected J17.13 DOUT Audio Serial Data Bus Data Output (Output) J17.14 NC Not Connected J17.15 NC Not Connected J17.16 SCL I2C Serial Clock J17.17 MCLK Master Clock Input J17.18 DGND Digital Ground J17.19 NC Not Connected J17.20 SDA I2C Serial Data Input/Output SLAU218 – August 2007 Submit Documentation Feedback EVM Connector Descriptions 39 www.ti.com Power Supply Connector Pin Header, J15 Note that J17 comprises the signals needed for an I2S™ serial digital audio interface; the control interface (I2C™ and RESET) signals are routed to J16. I2C is actually routed to both connectors; however, the device is connected only to J16. A.3 Power Supply Connector Pin Header, J15 J15 provides connection to the common power bus for the TLV320AIC3104EVM. Power is supplied on the pins listed in Table A-4. Table A-4. Power Supply Pinout SIGNAL PIN NUMBER SIGNAL NC J15.1 J15.2 NC +5VA J15.3 J15.4 NC DGND J15.5 J15.6 AGND DVDD (1.8V) J15.7 J15.8 NC IOVDD (3.3V) J15.9 J15.10 NC The TLV320AIC3104EVM-PDK motherboard (the USB-MODEVM Interface board) supplies power to J15 of the TLV320AIC3104EVM. Power for the motherboard is supplied either through its USB connection or via terminal blocks on that board. 40 EVM Connector Descriptions SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Appendix B Appendix B TLV320AIC3104EVM Schematic The schematic diagram for the modular TLV320AIC3104EVM is provided as a reference. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM Schematic 41 1 2 3 4 5 6 Revision History REV JMP5 1 TP10 DIN IOVDD TP19 HPROUT 2 DVDD J9 SW1 TP11 WCLK JMP6 C9 0.1uF TP12 BCLK BCLK MCLK IN1LP C20 0.1uF 10uF C14 10uF TP13 MCLK C8 1 18 24 25 7 32 1 2 3 4 5 TP29 IN1RM IN1R TP5 MICBIAS 3 MICBIAS 26 21 6 31 9 8 17 TP14 NI AVSS B R5 2.2K R6 2.2K TP7 IN2L R7 J8 0 R8 0 SJ1-3515-SMT TP8 IN2R C18 C16 0.1uF C19 NI C17 0.1uF NI RESET 2 2 LEFT+ C30 TP31 47nF FLC TP22 C31 TP32 47nF FRP C32 TP33 47nF FRC C15, C16, and C17 are not installed, but can be used to filter noise. HPL OUT HPLCOM 100 PLUS 1 MINUS 2 3 HPR OUT LEFT_LOP J10 C33 47nF R15 100 TP21 TP23 DRVSS RIGHT+ IOVDD PLUS 1 MINUS 2 C34 47nF LEFT OUT LEFT_LOM RIGHT_LOP J11 C35 47nF TP24 PLUS 1 MINUS 2 B RIGHTRIGHT OUT R17 SCL RIGHT_LOM 100 R2 C36 47nF 2.7K R3 2.7K SDA ti MK1 A C HPROUT J13 HPRCOM LEFT- 100K TP17 SDA 3 R14 R9 TP16 SCL 2 R13 100 HPRCOM 100 RESET MINUS R12 100 C26 TP27 1 2 47uF JMP15 27 28 29 30 J12 PLUS 1 2 1 JMP4 HPLOUT HPLCOM HPROUT HPRCOM TP15 IN2R JMP3 FLP R16 IN2L EXT MIC IN 47nF 47uF TP26 HPRCOM 19 20 23 22 TLV320AIC3104IRHB C15 IN2 1 2 3 IN2L IN2R MICBIAS TP30 HPROUT C25 U3 AVSS_DAC 14 16 15 DRVSS IN2R DVSS 2 2 HPLCOM JMP14 1 LEFT_LOP LEFT_LOM RIGHT_LOP RIGHT_LOM RESET IN2L 1 1 SDA SCL 10uF 1 2 HPCOM IN1RP IN1RM AVSS_ADC C13 MIC BIAS SEL 12 13 J7 R4 NI JMP10 DRVDD DRVDD AVDD_DAC 0.1uF 1 +3.3VA IN1LP IN1LM DVDD 10 11 IOVDD 0.1uF MCLK BCLK WCLK DIN DOUT C27 C29 R11 100 47uF JMP13 JMP12 0.1uF C4 C28 IN1RM C24 C12 J14 2 IN2R AVDD_DAC 2 HPLOUT R10 100 47uF JMP8 10uF 2 HPLOUT C23 TP25 HPLCOM 1 TP28 IN1RP 3 IN2L JMP11 1 0.1uF TP4 IN1LM IN1RP DRVDD 10uF IN1L SJ1-3515-SMT HEADSET OUTPUT 2 C3 1 C 47uF 0.1uF C7 IN1LM C22 C11 0.1uF 2 IN1R TP20 HPLOUT ESW_EG4208 JMP7 1 J6 3 IN1L C10 1 WCLK D C21 47uF 2 DIN TP3 IN1LP Approved TP9 DOUT DOUT D ECN Number MD9745APZ-F DATA ACQUISITION PRODUCTS MICROPHONE HIGH PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS TLV320AIC3104EVM DRAWN BY BOB BENJAMIN DOCUMENT CONTROL NO. 6487968 SHEET 1 2 3 4 5 1 OF 2 SIZE A REV A DATE 29-Nov-2006 FILE 6 A 1 2 3 4 5 6 REVISION HISTORY REV ENGINEERING CHANGE NUMBER APPROVED D D J1 HPLCOM 1 3 5 7 9 11 13 15 17 19 HPRCOM IN1LP IN1RP A0(-) A1(-) A2(-) A3(-) AGND AGND AGND VCOM AGND AGND J4 HPLOUT 2 4 6 8 10 12 14 16 18 20 A0(+) A1(+) A2(+) A3(+) A4 A5 A6 A7 REFREF+ 1 3 5 7 9 11 13 15 17 19 HPROUT IN1LM IN1RM IN2L IN2R MICBIAS CNTL CLKX CLKR FSX FSR DX DR INT TOUT GPIO5 GPIO0 DGND GPIO1 GPIO2 DGND GPIO3 GPIO4 SCL DGND SDA 2 4 6 8 10 12 14 16 18 20 JMP9 1 2 RESET DAUGHTER-SERIAL DAUGHTER-ANALOG J1A (TOP) = SAM_TSM-110-01-L-DV-P J1B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K J4A (TOP) = SAM_TSM-110-01-L-DV-P J4B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K TP6 TP18 TP1 AGND C TP2 DGND C JMP1 1 +3.3VA +5VA 3 C5 0.1uF AVDD_DAC DRVDD 2 VOUT SCL C2 10uF SDA 1 C1 10uF VIN GND U1 REG1117-3.3 RESET 2 DOUT DIN WCLK BCLK J2 LEFT_LOM RIGHT_LOP RIGHT_LOM +5VA 6 J5A (TOP) = SAM_TSM-110-01-L-DV-P J5B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K U2 IOVDD 8 R1 2.7K DAUGHTER-POWER C6 0.1uF 4 J3A (TOP) = SAM_TSM-105-01-L-DV-P J3B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K VCC SCL 2 4 6 8 10 VSS 24AA64I/SN 1 2 3 IOVDD -VA -5VA AGND VD1 +5VD WP DVDD MCLK 7 J2A (TOP) = SAM_TSM-110-01-L-DV-P J2B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K +VA +5VA DGND +1.8VD +3.3VD B DAUGHTER-SERIAL J3 1 3 5 7 9 GPIO0 DGND GPIO1 GPIO2 DGND GPIO3 GPIO4 SCL DGND SDA 5 DAUGHTER-ANALOG CNTL CLKX CLKR FSX FSR DX DR INT TOUT GPIO5 2 4 6 8 10 12 14 16 18 20 SDA A0(+) A1(+) A2(+) A3(+) A4 A5 A6 A7 REFREF+ 1 3 5 7 9 11 13 15 17 19 A0 A1 A2 LEFT_LOP A0(-) A1(-) A2(-) A3(-) AGND AGND AGND VCOM AGND AGND J5 2 4 6 8 10 12 14 16 18 20 1 2 3 B 1 3 5 7 9 11 13 15 17 19 ti 2 JMP16 IOVDD JMP2 A 1 DATA ACQUISITION PRODUCTS HIGH-PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS DRAWN BY BOB BENJAMIN DOCUMENT CONTROL NO. 6487968 SHEET 1 2 3 4 5 2 OF 2 TLV320AIC3104EVM INTERFACE SIZE B REV A DATE 29-Nov-2006 FILE 6 A www.ti.com Appendix C Appendix C TLV320AIC3104EVM Layout Views Figure C-1. Assembly layer Figure C-2. Top Layer 42 TLV320AIC3104EVM Layout Views SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Appendix C Figure C-3. Layer 3 Figure C-4. Layer 4 SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM Layout Views 43 www.ti.com Appendix C Figure C-5. Silk Screen Figure C-6. Bottom Layer 44 TLV320AIC3104EVM Layout Views SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Appendix D Appendix D TLV320AIC3104EVM Bill of Materials The complete bill of materials for the modular TLV320AIC3104EVM is provided as a reference. Table D-1. TLV320AIC3104EVM Bill of Materials QTY Value Ref Des Description Manufacturer Mfr Part Number 2 0 R7, R8 1/4W 5% Chip Resistor Panasonic ERJ-8GEY0R00V 8 100 R10–R17 1/10W 1% Chip Resistor Panasonic ERJ-3EKF1000V 2 2.2k R5, R6 1/4W 5% Chip Resistor Panasonic ERJ-8GEYJ222V 3 2.7K R1, R2, R3 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ272V 1 100K R9 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ104V 1 NI R4 Chip Resistor 8 47 nF C29–C36 50V Ceramic chip capacitor, ±10%, X7R TDK C1608X7R1H473K 6 0.1 μF C5, C6, C9–C12 16V Ceramic Chip Capacitor, ±10%, X7R TDK C1608X7R1C104K 6 0.1 μF C7, C8, C18, C19, C27, C28 100V Ceramic Chip Capacitor, ±10%, X7R TDK C3216X7R2A104K 7 10 μF C1–C4, C13, C14, C20 6.3V Ceramic Chip Capacitor, ±10%, X5R TDK C3216X5R0J106K 6 47 μF C21–C26 6.3V Ceramic Chip Capacitor, ±20%, X5R TDK C3225X5R0J476M 2 NI C16, C17 Ceramic Chip Capacitor 1 NI C15 Ceramic Chip Capacitor 1 U3 Audio Codec Texas Instruments TLV320AIC3104IRHB 1 U1 3.3V LDO Voltage Regulator Texas Instruments REG1117-3.3 1 U2 64K I2C EEPROM MicroChip 24AA64-I/SN 2 J10, J11 Screw Terminal Block, 2 Position On Shore Technology ED555/2DS 5 J6, J7, J12–J14 Screw Terminal Block, 3 Position On Shore Technology ED555/3DS 2 J8, J9 3,5 mm Audio Jack, T-R-S, SMD CUI Inc. SJ1-3515-SMT or alternate KobiConn 161-3335-E 4 J1A, J2A, J4A, J5A 20 Pin SMT Plug Samtec TSM-110-01-L-DV-P 4 J1B, J2B, J4B, J5B 20 pin SMT Socket Samtec SSW-110-22-F-D-VS-K 1 J3A 10 Pin SMT Plug Samtec TSM-105-01-L-DV-P 1 J3B 10 pin SMT Socket Samtec SSW-105-22-F-D-VS-K 1 N/A TLV320AIC3104EVM PWB Texas Instruments 6487967 10 JMP1–JMP4, JMP9, JMP11–JMP15 2 Position Jumper, 0.1" spacing Samtec TSW-102-07-L-S 4 JMP5–JMP8 Bus Wire (18-22 Gauge) 2 JMP10, JMP16 3 Position Jumper, 0.1" spacing Samtec TSW-103-07-L-S 1 MK1 Omnidirectional Microphone Cartridge Knowles Acoustics MD9745APZ-F alternate Knowles Acoustics MD9745APA-1 1 SW1 4PDT Right Angle Switch E-Switch EG4208 TP3–TP33 Miniature Test Point Terminal Keystone Electronics 5000 2 TP1, TP2 Multipurpose Test Point Terminal Keystone Electronics 5011 12 N/A Header Shorting Block Samtec SNT-100-BK-T 31 Not Installed ATTENTION: All components should be RoHS compliant. Some part number may be either leaded or RoHS. Verify purchased components are RoHS compliant. SLAU218 – August 2007 Submit Documentation Feedback TLV320AIC3104EVM Bill of Materials 45 www.ti.com Appendix E Appendix E USB-MODEVM Schematic The schematic diagram for USB-MODEVM Interface Board (included only in the TLV320AIC3104EVM-PDK) is provided as a reference. 46 USB-MODEVM Schematic SLAU218 – August 2007 Submit Documentation Feedback 1 2 3 4 6 5 REVISION HISTORY REV IOVDD R5 2.7K 2 5 9 12 1 USB MCK 4 10 USB I2S 13 J6 Q2 ZXMN6A07F EXTERNAL I2C SDA SCL WP 8 A0 A1 A2 U1 VCC C9 1uF 4 1 1 3 5 7 9 11 3 2 44 43 42 41 40 39 37 38 36 35 34 32 R12 3.09K .001uF R10 27.4 R11 C13 47pF C14 47pF R7 2.7K JMP8 1 2 P1.2 P1.1 P1.0 +3.3VD C11 1uF C12 1uF C MOSI SS SCLK RESET 14 VCC J15 1 3 5 7 9 11 3 6 8 11 1Y 2Y 3Y 4Y 7 GND 2 4 6 8 10 12 EXTERNAL SPI USB RST USB SPI P3.5 JMP13 1 2 D2 +3.3VD YELLOW C25 R8 2.7K P3.4 JMP14 1 2 IOVDD P3.3 B U6 1uF 4 2 INT 3 J8 5 B 1A 2A 3A 4A 1OE 2OE 3OE 4OE JMP12 1 2 SML-LX0603YW-TR MISO SN74LVC1G07DBV SN74LVC125APW MRESET 649 2 U4 2 5 9 12 1 4 10 13 USB ACTIVE R13 4 1uF JMP11 1 2 C10 1uF EXTERNAL AUDIO DATA C27 IOVDD JMP10 1 2 C24 1uF SW DIP-8 P1.3 JMP9 1 2 SN74LVC1G07DBV ED555/2DS +5VD EXT PWR IN +1.8VD R14 390 U9 5 6 4 1 2 3 6VDC-10VDC IN D3 SML-LX0603GW-TR JMP6 PWR SELECT GREEN 3 9 U2 REG1117-5 3 C15 DL4001 0.1uF VIN C16 0.33uF VOUT GND D1 10 11 12 2 R15 10K C6 10uF 1 J9 R16 10K +5VD A +3.3VD +1.8VD IOVDD JMP7 1 2 3 4 5 6 TP6 1IN 1IN 1EN 1GND 2GND 2EN 2IN 2IN 1RESET 1OUT 1OUT 2RESET 2OUT 2OUT TPS767D318PWP CUI-STACK PJ102-B 2.5 MM SW1 1 2 4 3 24 23 22 18 17 R17 100K C7 10uF D5 SML-LX0603IW-TR R18 100K R4 10 +3.3VD RED R19 220 !" C8 10uF D4 SML-LX0603GW-TR C17 0.33uF 1.8VD ENABLE 3.3VD ENABLE 28 GREEN DATA ACQUISITION PRODUCTS REGULATOR ENABLE 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS USB-MODEVM INTERFACE DRAWN BY ROBERT BENJAMIN DOCUMENT CONTROL NO. 6463996 SHEET 1 2 A HIGH PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP IOVDD SELECT 1 SW2 1 2 3 4 5 6 7 8 PWR_DWN U7 31 30 29 27 26 25 24 23 8 21 33 2 16 15 14 13 12 11 10 9 2 4 6 8 10 12 1uF TP11 +3.3VD IOVDD C26 3 P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0 DVDD DVDD DVDD AVDD 9 10 11 12 13 14 15 17 18 19 20 22 27.4 XTALO XTALI PLLFILI PLLFILO MCLKI PUR DP DM DVSS DVSS DVSS AVSS MRESET TEST EXTEN RSTO P3.0 P3.1 P3.2/XINT P3.3 P3.4 P3.5 NC NC 7 1 2 3 1.5K +3.3VD U8 TAS1020BPFB SCL SDA VREN RESET MCLKO2 MCLKO1 CSCLK CDATO CDATI CSYNC CRESET CSCHNE 46 47 48 1 3 5 6 7 4 16 28 45 100pF C21 R9 J14 1uF 33pF MA-505 6.000M-C0 6.00 MHZ J7 USB SLAVE CONN 897-30-004-90-000000 I2SDOUT C23 U5 C19 C20 4 3 2 1 BCLK SN74LVC1G07DBV 33pF 24LC64I/SN GND D+ DVCC X1 C18 A0 A1 A2 USB I2S USB MCK USB SPI USB RST EXT MCK LRCLK IOVDD 4 VSS R20 75 MCLK 7 GND R6 2.7K RA1 10K I2SDIN 6 5 +3.3VD SCL C SN74LVC1G125DBV 3 6 8 11 1Y 2Y 3Y 4Y D 2 SN74LVC125APW +3.3VD TP10 14 VCC +3.3VD 5 1 3 1A 2A 3A 4A 1OE 2OE 3OE 4OE 5 2 4 4 1uF U3 APPROVED J10 EXT MCLK U10 3 R3 2.7K TP9 SDA 1uF 5 C22 Q1 ZXMN6A07F D C28 IOVDD IOVDD +3.3VD ENGINEERING CHANGE NUMBER 3 4 5 OF 2 FILE SIZE B REV B DATE 28-Oct-2004 D:\USB-MODEVM\USB Motherboard - ModEvm.ddb - Documents\USB Interface 6 1 2 3 4 5 6 REVISION HISTORY REV ENGINEERING CHANGE NUMBER APPROVED D 1 2 3 D J11 J12 A0(+) A1(+) A2(+) A3(+) A4 A5 A6 A7 REFREF+ 2 4 6 8 10 12 14 16 18 20 +5VA J13A (TOP) = SAM_TSM-105-01-L-DV-P J13B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K DAUGHTER-ANALOG J11A (TOP) = SAM_TSM-110-01-L-DV-P J11B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K +5VA +5VD JMP1 1 2 +VA +5VA DGND +1.8VD +3.3VD -VA -5VA AGND VD1 +5VD 2 4 6 8 10 GPIO0 DGND GPIO1 GPIO2 DGND GPIO3 GPIO4 SCL DGND SDA SCLK SS P3.3 J12A (TOP) = SAM_TSM-110-01-L-DV-P J12B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K +5VA TP2 10uF C2 +5VD TP3 10uF C3 TP4 10uF JMP3 PWR_DWN INT JMP4 MISO +3.3VD MOSI R1 R21 390 J1 -5VA R22 390 SCL 2.7K J2 +5VA D6 SML-LX0603GW-TR D7 SML-LX0603GW-TR GREEN GREEN J3 +5VD TP5 +1.8VD C RESET IOVDD 2 C1 P3.5 P1.0 1 -5VA P3.4 +5VD JMP2 1 2 TP1 JMP5 2 4 6 8 10 12 14 16 18 20 -5VA DAUGHTER-POWER TP7 TP8 AGND DGND JPR-2X1 C CNTL CLKX CLKR FSX FSR DX DR INT TOUT GPIO5 DAUGHTER-SERIAL J13 1 3 5 7 9 1 3 5 7 9 11 13 15 17 19 2 A0(-) A1(-) A2(-) A3(-) AGND AGND AGND VCOM AGND AGND 1 1 3 5 7 9 11 13 15 17 19 C4 C5 10uF 10uF J4 +1.8VD R2 SDA 2.7K I2SDOUT J5 +3.3VD I2SDIN LRCLK BCLK J21 1 3 5 7 9 11 13 15 17 19 B A0(-) A1(-) A2(-) A3(-) AGND AGND AGND VCOM AGND AGND J22 A0(+) A1(+) A2(+) A3(+) A4 A5 A6 A7 REFREF+ 2 4 6 8 10 12 14 16 18 20 1 3 5 7 9 11 13 15 17 19 +5VA DAUGHTER-ANALOG J21A (TOP) = SAM_TSM-110-01-L-DV-P J21B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K +1.8VD +VA +5VA DGND +1.8VD +3.3VD GPIO0 DGND GPIO1 GPIO2 DGND GPIO3 GPIO4 SCL DGND SDA 2 4 6 8 10 12 14 16 18 20 P1.1 B P1.2 P1.3 MCLK DAUGHTER-SERIAL J23 1 3 5 7 9 CNTL CLKX CLKR FSX FSR DX DR INT TOUT GPIO5 -VA -5VA AGND VD1 +5VD 2 4 6 8 10 -5VA J22A (TOP) = SAM_TSM-110-01-L-DV-P J22B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K DAUGHTER-POWER +3.3VD +5VD J23A (TOP) = SAM_TSM-105-01-L-DV-P J23B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K !" A DATA ACQUISITION PRODUCTS A HIGH-PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS DRAWN BY ROBERT BENJAMIN USB-MODEVM INTERFACE DOCUMENT CONTROL NO. 6463996 SHEET 2 1 2 3 4 5 OF 2 FILE SIZE B REV B DATE 28-Oct-2004 D:\USB-MODEVM\USB Motherboard - ModEvm.ddb - Documents\Daughtercard Interface 6 www.ti.com Appendix F Appendix F USB-MODEVM Bill of Materials The complete bill of materials for USB-MODEVM Interface Board (included only in the TLV320AIC3104EVM-PDK) is provided as a reference. Table F-1. USB-MODEVM Bill of Materials Designators Description Manufacturer Mfr Part Number R4 10Ω 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ1300V R10, R11 27.4Ω 1/16W 1% Chip Resistor Panasonic ERJ-3EKF27R4V R20 75Ω 1/4W 1% Chip Resistor Panasonic ERJ-14NF75R0U R19 220Ω 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ221V R14, R21, R22 390Ω 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ391V R13 649Ω 1/16W 1% Chip Resistor Panasonic ERJ-3EKF6490V R9 1.5KΩ 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ1352V R1–R3, R5–R8 2.7KΩ 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ272V R12 3.09KΩ 1/16W 1% Chip Resistor Panasonic ERJ-3EKF3091V R15, R16 10KΩ 1/10W 5% Chip Resistor Panasonic ERJ-3GEYJ1303V R17, R18 100kΩ 1/10W 5%Chip Resistor Panasonic ERJ-3GEYJ1304V RA1 10KΩ 1/8W Octal Isolated Resistor Array CTS Corporation 742C163103JTR C18, C19 33pF 50V Ceramic Chip Capacitor, ±5%, NPO TDK C1608C0G1H330J C13, C14 47pF 50V Ceramic Chip Capacitor, ±5%, NPO TDK C1608C0G1H470J C20 100pF 50V Ceramic Chip Capacitor, ±5%, NPO TDK C1608C0G1H101J C21 1000pF 50V Ceramic Chip Capacitor, ±5%, NPO TDK C1608C0G1H102J C15 0.1μF 16V Ceramic Chip Capacitor, ±10%, X7R TDK C1608X7R1C104K C16, C17 0.33μF 16V Ceramic Chip Capacitor, ±20%, Y5V TDK C1608X5R1C334K C9–C12, C22–C28 1μF 6.3V Ceramic Chip Capacitor, ±10%, X5R TDK C1608X5R0J1305K C1–C8 10μF 6.3V Ceramic Chip Capacitor, ±10%, X5R TDK C3216X5R0J1306K D1 50V, 1A, Diode MELF SMD Micro Commercial Components DL4001 D2 Yellow Light Emitting Diode Lumex SML-LX0603YW-TR D3– D7 Green Light Emitting Diode Lumex SML-LX0603GW-TR D5 Red Light Emitting Diode Lumex SML-LX0603IW-TR Q1, Q2 N-Channel MOSFET Zetex ZXMN6A07F X1 6MHz Crystal SMD Epson MA-505 6.000M-C0 U8 USB Streaming Controller Texas Instruments TAS1020BPFB U2 5V LDO Regulator Texas Instruments REG1117-5 U9 3.3V/1.8V Dual Output LDO Regulator Texas Instruments TPS767D318PWP U3, U4 Quad, 3-State Buffers Texas Instruments SN74LVC125APW U5–U7 Single IC Buffer Driver with Open Drain o/p Texas Instruments SN74LVC1G07DBVR U10 Single 3-State Buffer Texas Instruments SN74LVC1G125DBVR U1 64K 2-Wire Serial EEPROM I2C Microchip 24LC64I/SN USB-MODEVM PCB Texas Instruments 6463995 TP1–TP6, TP9–TP11 Miniature test point terminal Keystone Electronics 5000 TP7, TP8 Multipurpose test point terminal Keystone Electronics 5011 J7 USB Type B Slave Connector Thru-Hole Mill-Max 897-30-004-90-000000 J13, J2–J5, J8 2-position terminal block On Shore Technology ED555/2DS J9 2.5mm power connector CUI Stack PJ-102B J130 BNC connector, female, PC mount AMP/Tyco 414305-1 J131A, J132A, J21A, J22A 20-pin SMT plug Samtec TSM-110-01-L-DV-P J131B, J132B, J21B, J22B 20-pin SMT socket Samtec SSW-110-22-F-D-VS-K J133A, J23A 10-pin SMT plug Samtec TSM-105-01-L-DV-P J133B, J23B 10-pin SMT socket Samtec SSW-105-22-F-D-VS-K J6 4-pin double row header (2x2) 0.1" Samtec TSW-102-07-L-D J134, J135 12-pin double row header (2x6) 0.1" Samtec TSW-106-07-L-D SLAU218 – August 2007 Submit Documentation Feedback USB-MODEVM Bill of Materials 47 www.ti.com Appendix F Table F-1. USB-MODEVM Bill of Materials (continued) Designators Description Manufacturer Mfr Part Number JMP1–JMP4 2-position jumper, 0.1" spacing Samtec TSW-102-07-L-S JMP8–JMP14 2-position jumper, 0.1" spacing Samtec TSW-102-07-L-S JMP5, JMP6 3-position jumper, 0.1" spacing Samtec TSW-103-07-L-S JMP7 3-position dual row jumper, 0.1" spacing Samtec TSW-103-07-L-D SW1 SMT, half-pitch 2-position switch C&K Division, ITT TDA02H0SK1 SW2 SMT, half-pitch 8-position switch C&K Division, ITT TDA08H0SK1 Jumper plug Samtec SNT-100-BK-T 48 USB-MODEVM Bill of Materials SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Appendix G Appendix G USB-MODEVM Protocol G.1 USB-MODEVM Protocol The USB-MODEVM is defined to be a Vendor-Specific class, and is identified on the PC system as an NI-VISA device. Because the TAS1020 has several routines in its ROM which are designed for use with HID-class devices, HID-like structures are used, even though the USB-MODEVM is not an HID-class device. Data is passed from the PC to the TAS1020 using the control endpoint. Data is sent in an HIDSETREPORT (see Table G-1): Table G-1. USB Control Endpoint HIDSETREPORT Request Part Value Description bmRequestType 0x21 00100001 bRequest 0x09 SET_REPORT wValue 0x00 don't care wIndex 0x03 HID interface is index 3 wLength calculated by host Data Data packet as described below The data packet consists of the following bytes, shown in Table G-2: Table G-2. Data Packet Configuration BYTE NUMBER 0 TYPE DESCRIPTION Interface Specifies serial interface and operation. The two values are logically ORed. Operation: READ WRITE 0x00 0x10 GPIO SPI_16 I2C_FAST I2C_STD SPI_8 0x08 0x04 0x02 0x01 0x00 Interface: 1 I2C Slave Address Slave address of I2C device or MSB of 16-bit reg addr for SPI 2 Length Length of data to write/read (number of bytes) 3 Register address Address of register for I2C or 8-bit SPI; LSB of 16-bit address for SPI Data Up to 60 data bytes could be written at a time. EP0 maximum length is 64. The return packet is limited to 42 bytes, so advise only sending 32 bytes at any one time. 4..64 Example usage: Write two bytes (AA, 55) to device starting at register 5 of an I2C device with address A0: [0] [1] [2] [3] [4] [5] 0x11 0xA0 0x02 0x05 0xAA 0x55 SLAU218 – August 2007 Submit Documentation Feedback USB-MODEVM Protocol 49 www.ti.com USB-MODEVM Protocol Do the same with a fast mode I2C device: [0] [1] [2] [3] [4] [5] 0x12 0xA0 0x02 0x05 0xAA 0x55 Now with an SPI device which uses an 8-bit register address: [0] [1] [2] [3] [4] [5] 0x10 0xA0 0x02 0x05 0xAA 0x55 Now let's do a 16-bit register address, as found on parts like the TSC2101. Assume the register address (command word) is 0x10E0: [0] [1] [2] [3] [4] [5] 0x14 0x10 --> Note: the I2C address now serves as MSB of reg addr. 0x02 0xE0 0xAA 0x55 In each case, the TAS1020 will return, in an HID interrupt packet, the following: [0] interface byte | status status: REQ_ERROR 0x80 INTF_ERROR 0x40 REQ_DONE 0x20 [1] for I2C interfaces, the I2C address as sent for SPI interfaces, the read back data from SPI line for transmission of the corresponding byte [2] length as sent [3] for I2C interfaces, the reg address as sent for SPI interfaces, the read back data from SPI line for transmission of the corresponding byte [4..60] 50 echo of data packet sent USB-MODEVM Protocol SLAU218 – August 2007 Submit Documentation Feedback www.ti.com USB-MODEVM Protocol If the command is sent with no problem, the returning byte [0] should be the same as the sent one logically ORed with 0x20 - in our first example above, the returning packet should be: [0] [1] [2] [3] [4] [5] 0x31 0xA0 0x02 0x05 0xAA 0x55 If for some reason the interface fails (for example, the I2C device does not acknowledge), it would come back as: [0] [1] [2] [3] [4] [5] 0x51 --> interface | INTF_ERROR 0xA0 0x02 0x05 0xAA 0x55 If the request is malformed, that is, the interface byte (byte [0]) takes on a value which is not described above, the return packet would be: [0] [1] [2] [3] [4] [5] 0x93 --> the user sent 0x13, which is not valid, so 0x93 returned 0xA0 0x02 0x05 0xAA 0x55 Examples above used writes. Reading is similar: Read two bytes from device starting at register 5 of an I2C device with address A0: [0] [1] [2] [3] 0x01 0xA0 0x02 0x05 SLAU218 – August 2007 Submit Documentation Feedback USB-MODEVM Protocol 51 www.ti.com GPIO Capability The return packet should be [0] [1] [2] [3] [4] [5] 0x21 0xA0 0x02 0x05 0xAA 0x55 assuming that the values we wrote above starting at Register 5 were actually written to the device. G.2 GPIO Capability The USB-MODEVM has seven GPIO lines. Access them by specifying the interface to be 0x08, and then using the standard format for packets—but addresses are unnecessary. The GPIO lines are mapped into one byte (see Table G-3): Table G-3. GPIO Pin Assignments Bit 7 6 5 4 3 2 1 0 x P3.5 P3.4 P3.3 P1.3 P1.2 P1.1 P1.0 Example: write P3.5 to a 1, set all others to 0: [0] [1] [2] [3] [4] 0x18 0x00 0x01 0x00 0x40 --> write, GPIO --> this value is ignored --> length - ALWAYS a 1 --> this value is ignored --> 01000000 The user may also read back from the GPIO to see the state of the pins. Let's say we just wrote the previous example to the port pins. Example: read the GPIO [0] [1] [2] [3] 0x08 0x00 0x01 0x00 --> read, GPIO --> this value is ignored --> length - ALWAYS a 1 --> this value is ignored The return packet should be: [0] [1] [2] [3] [4] G.3 0x28 0x00 0x01 0x00 0x40 Writing Scripts A script is simply a text file that contains data to send to the serial control buses. The scripting language is quite simple, as is the parser for the language. Therefore, the program is not very forgiving about mistakes made in the source script file, but the formatting of the file is simple. Consequently, mistakes should be rare. 52 USB-MODEVM Protocol SLAU218 – August 2007 Submit Documentation Feedback www.ti.com Writing Scripts Each line in a script file is one command. There is no provision for extending lines beyond one line. A line is terminated by a carriage return. The first character of a line is the command. Commands are: I Set interface bus to use r Read from the serial control bus w Write to the serial control bus # Comment b Break d Delay The first command, I, sets the interface to use for the commands to follow. This command must be followed by one of the following parameters: i2cstd Standard mode I2C Bus i2cfast Fast mode I2C bus spi8 SPI bus with 8-bit register addressing spi16 SPI bus with 16-bit register addressing gpio Use the USB-MODEVM GPIO capability For example, if a fast mode I2C bus is to be used, the script would begin with: I i2cfast No data follows the break command. Anything following a comment command is ignored by the parser, provided that it is on the same line. The delay command allows the user to specify a time, in milliseconds, that the script will pause before proceeding. Note: UNLIKE ALL OTHER NUMBERS USED IN THE SCRIPT COMMANDS, THE DELAY TIME IS ENTERED IN A DECIMAL FORMAT. Also, note that because of latency in the USB bus as well as the time it takes the processor on the USB-MODEVM to handle requests, the delay time may not be precise. A series of byte values follows either a read or write command. Each byte value is expressed in hexadecimal, and each byte must be separated by a space. Commands are interpreted and sent to the TAS1020 by the program using the protocol described in Section G.1. The first byte following a read or write command is the I2C slave address of the device (if I2C is used) or the first data byte to write (if SPI is used—note that SPI interfaces are not standardized on protocols, so the meaning of this byte will vary with the device being addressed on the SPI bus). The second byte is the starting register address that data will be written to (again, with I2C; SPI varies—see Section G.1 for additional information about what variations may be necessary for a particular SPI mode). Following these two bytes are data, if writing; if reading, the third byte value is the number of bytes to read, (expressed in hexadecimal). For example, to write the values 0xAA 0x55 to an I2C device with a slave address of 0x90, starting at a register address of 0x03, one would write: #example script I i2cfast w 90 03 AA 55 r 90 03 2 This script begins with a comment, specifies that a fast I2C bus will be used, then writes 0xAA 0x55 to the I2C slave device at address 0x90, writing the values into registers 0x03 and 0x04. The script then reads back two bytes from the same device starting at register address 0x03. Note that the slave device value does not change. It is not necessary to set the R/W bit for I2C devices in the script; the read or write commands will do that. SLAU218 – August 2007 Submit Documentation Feedback USB-MODEVM Protocol 53 www.ti.com Writing Scripts Here is an example of using an SPI device that requires 16-bit register addresses: # setup TSC2101 for input and output # uses SPI16 interface # this script sets up DAC and ADC at full volume, input from onboard mic # # Page 2: Audio control registers w 10 00 00 00 80 00 00 00 45 31 44 FD 40 00 31 C4 w 13 60 11 20 00 00 00 80 7F 00 C5 FE 31 40 7C 00 02 00 C4 00 00 00 23 10 FE 00 FE 00 Note that blank lines are allowed. However, be sure that the script does not end with a blank line. While ending with a blank line will not cause the script to fail, the program will execute that line, and therefore, may prevent the user from seeing data that was written or read back on the previous command. In this example, the first two bytes of each command are the command word to send to the TSC2101 (0x1000, 0x1360); these are followed by data to write to the device starting at the address specified in the command word. The second line may wrap in the viewer being used to look like more than one line; careful examination will show, however, that there is only one carriage return on that line, following the last 00. Any text editor may be used to write these scripts; Jedit is an editor that is highly recommended for general usage. For more information, go to: http://www.jedit.org. Once the script is written, it can be used in the command window by running the program, and then selecting Open Command File... from the File menu. Locate the script and open it. The script will then be displayed in the command buffer. The user may also edit the script once it is in the buffer, but saving of the command buffer is not possible at this time (this feature may be added at a later date). Once the script is in the command buffer, it may be executed by pressing the Execute Command Buffer button. If there are breakpoints in the script, the script will execute to that point, and the user will be presented with a dialog box with a button to press to continue executing the script. When ready to proceed, push that button and the script will continue. Here an example of a (partial) script with breakpoints: # # I # w r d # w r b setup AIC33 for input and output uses I2C interface i2cfast reg 07 - codec datapath 30 07 8A 30 07 1 1000 regs 15/16 - ADC volume, unmute and set to 0dB 30 0F 00 00 30 0F 2 This script writes the value 8A at register 7, then reads it back to verify that the write was good. A delay of 1000ms (one second) is placed after the read to pause the script operation. When the script continues, the values 00 00 will be written starting at register 0F. This output is verified by reading two bytes, and pausing the script again, this time with a break. The script would not continue until the user allows it to by pressing OK in the dialog box that will be displayed due to the break. 54 USB-MODEVM Protocol SLAU218 – August 2007 Submit Documentation Feedback EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. 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