BeagleBoard BeagleBone DVI-D, System Reference Manual

Page 1: ...BeagleBone DVI D with Audio Cape System Reference Manual Revision A1 Page 1 of 28 BeagleBone DVI D with Audio Cape Rev A1 System Reference Manual Revision A1 October 1st 2012...

Page 2: ...license results one license_code by sa For any questions concerns or issues submit them to support beagleboardtoys com BEAGLEBONE DVI D WITH AUDIO CAPE DESIGN These design materials referred to in thi...

Page 3: ...PARTICULAR PURPOSE THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE DESIGN MATERIALS IS WITH YOU SHOULD THE DESIGN MATERIALS PROVE DEFECTIVE YOU ASSUME THE COST OF ALL NECESSARY SERVICING REP...

Page 4: ...IED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE The user assumes all responsibility and liability for proper and safe handling of the goods Further the...

Page 5: ...ver any problems occurring as a result of improper use modifications exposure to water excessive voltages abuse or accidents All boards will be returned via standard mail if an issue is found If no is...

Page 6: ...EC 16 4 5 STEREO AUDIO PORTS 16 4 6 INDICATORS 16 4 7 EXPANSION CONNECTORS 16 4 8 MECHANICAL SPECIFICATIONS 16 5 0 BEAGLEBONE DVI D WITH AUDIO CAPE SYSTEM ARCHITECTURE AND DESIGN 17 5 1 SYSTEM BLOCK D...

Page 7: ...ver 19 Figure 5 DVI D PanelBus Digital Transmitter and Voltage Translator 20 Figure 6 The Record Path of TLV320AIC3106 21 Figure 7 The Playback Path of TLV320AIC3106 22 Figure 8 Audio Serial Bus Inter...

Page 8: ...BeagleBone DVI D with Audio Cape System Reference Manual Revision A1 Page 8 of 28 NOTES...

Page 9: ...e perspective The perspective will be general in nature and not specific to any one board The key sections in this document are Section 2 0 Change History Provides tracking for the changes made to the...

Page 10: ...story Rev Changes Date By A Initial release 08 25 2011 BBT A1 1 Add Rev A vs A1 section 2 2 10 01 2012 BBT 2 2 Rev A vs A1 The only changes in this revision are PCB silkscreens to accommodate the rele...

Page 11: ...C3106 codec Audio data is sampled at up to 96 kHz during recording or playback The codec interfaces with the Multichannel Audio Serial Port of the AM335x via audio serial bus The BeagleBone DVI D with...

Page 12: ...768 Please ensure your monitor supports this resolution Note Only plug in or unplug the HDMI cable when the board is not powered Hot plugging or unplugging while the board is powered on may damage the...

Page 13: ...to speakers 3 4 Repairs If you feel the board is in need of repair follow the RMA Request process found at http www beagleboardtoys com support rma Do not send the board in for repair until a RMA auth...

Page 14: ...ard Table 2 provides a list of the BeagleBone DVI D with Audio Cape s features Table 2 BeagleBone DVI D with Audio Cape Features Feature Power Supply 3 3V via expansion 5V via expansion Audio Connecto...

Page 15: ...upport over I2C is provided in order to allow for the identification of the LCD monitor type and the required settings 4 3 HDMI Connector The BeagleBone DVI D with Audio Cape uses an HDMI connector th...

Page 16: ...sed for recording audio output port is used for playback 4 6 Indicators There are two user LED s on the board Both are green when lit and can be controlled via software by setting the GPIO ports 4 7 E...

Page 17: ...Architecture and Design This section provides a high level description of the design of the BeagleBone DVI D with Audio Cape and its overall architecture 5 1 System Block Diagram Figure 3 is the high...

Page 18: ...are powered by power rail VDD_3V3 In addition to the monitor EDID the Board ID EEPROM on the DVI D cape can also be accessed via I2C2 signals 5 2 2 Bus Transceiver LCD data and control signals are bu...

Page 19: ...ected to the active low power down pin PD of the transmitter The TFP410 transmits three pairs of differential signal outputs and one pair of differential output clock to the HDMI connector The EDID I2...

Page 20: ...BeagleBone DVI D with Audio Cape System Reference Manual Revision A1 Page 20 of 28 Figure 5 DVI D PanelBus Digital Transmitter and Voltage Translator...

Page 21: ...however the BeagleBone DVI D with Audio Cape only supports two single ended audio inputs Each input is passed through a programmable gain amplifier PGA which allows gain control from 0 dB to 59 5 dB i...

Page 22: ...vel control for each output channel If no mixings are required an output playback signals with highest DAC quality can be provided by using a direct connection for DAC outputs The analog volume contro...

Page 23: ...supports both standard and fast modes and has a 7 bit address of 0011011 An external oscillator is used to provide a 12MHz clock signal to the master clock input MCLK of the codec 5 4 EEPROM The Beag...

Page 24: ...r each board Address line A2 is always tied high This sets the allowable address range for the expansion cards to 0x54 to 0x57 All other I2C addresses can be used by the user in the design of their Ca...

Page 25: ...n A1 Page 25 of 28 5 5 User LED s The BeagleBone DVI D with Audio Cape features two user LED s which are same as D2 and D3 on the BeagleBone boards These two LED s can be access via GPIO pins on the p...

Page 26: ...that are connected to SYS_5V rail FB8 provides noise immunity to the system by the LED s which can be a source of noise back into the system rail Each LED is controlled by settings the appropriate GP...

Page 27: ...ical Information 6 1 BeagleBone DVI D with Audio Cape Dimensions This section provides information on the mechanical aspect of the BeagleBone DVI D with Audio Cape Figure 11 is the dimensions of the B...

Page 28: ...rt is allowed via resources at BeagleBoard org discuss THERE IS NO WARRANTY FOR THE DESIGN MATERIALS TO THE EXTENT PERMITTED BY APPLICABLE LAW EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOL...