Analog Devices system manual Using ADSP-21364 EZ-KIT Lite

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Using ADSP-21364 EZ-KIT Lite

opposed to the on-board oscillator, allows synchronization of multiple devices in the system. This is done on the EZ-KIT Lite when data is com- ing from the S/PDIF receiver and being output through the audio codec. The S/PDIF MCLK is routed to the AD1835A MCLK in the processor’s signal routing unit (SRU). It is also necessary to disable the on-board audio oscillator from driving the audio codec and the processor’s input pin. For instructions on how to configure the clock, refer to “Codec Setup Switch (SW7)” on page 2-10.

The AD1835A codec can be configured as a master or as a slave, depend- ing on the DIP switch settings. In master mode, the AD1835A drives the serial port clock and frame sync signals to the processor. In slave mode, the processor must generate and drive all of the serial port clock and frame sync signals. For information on how to set the mode, refer to “Codec Setup Switch (SW7)” on page 2-10.

The AD1835A audio codec’s internal configuration registers are config- ured using the SPI port of the processor. The FLAG3 register is used as the select for the device. For information on how to configure the multichan- nel codec, refer to the codec datasheet, which can be found at

http://www.analog.com/en/prod/0,2877,AD1835A,00.html.

The RCA connector (J4) is used to input analog audio. When using an electret microphone on this connector, configure the SW6 switch according to the instructions in “Electret Microphone Select Switch (SW6)” on page 2-9. The four output channels connect to the RCA connector J5. Channel 4 of the codec connects to the headphone jack J6. For more information, see “Connectors” on page 2-16.

Example programs are included in the EZ-KIT Lite installation directory to demonstrate how to configure and use the board’s analog audio interface.

ADSP-21364 EZ-KIT Lite Evaluation System Manual

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Contents ADSP-21364 EZ-KIT Lite Evaluation System Manual Disclaimer Limited WarrantyTrademark and Service Mark Notice Copyright InformationRegulatory Compliance Page Contents Using ADSP-21364 EZ-KIT Lite ADSP-21364 EZ-KIT Lite Evaluation System Manual Vii Index Preface Page Preface Intended Audience Purpose of This ManualPurpose of This Manual Manual Contents Technical or Customer Support What’s New in This ManualWhat’s New in This Manual Product Information Supported ProcessorsMyAnalog.com Related Documents Processor Product InformationProduct Information Related VisualDSP++ Publications Online Technical DocumentationAccessing Documentation From Windows Accessing Documentation From VisualDSP++Printed Manuals Accessing Documentation From WebVisualDSP++ Documentation Set Processor Manuals Data SheetsNotation Conventions Notation Conventions Hardware Tools ManualsADSP-21364 EZ-KIT Lite Evaluation System Manual Xxi Notation Conventions Using ADSP-21364 EZ-KIT Lite Package Contents Using ADSP-21364 EZ-KIT Lite Default ConfigurationDefault Configuration Installation and Session Startup Installation and Session Startup External Memory Evaluation License RestrictionsAnalog Audio Analog AudioUsing ADSP-21364 EZ-KIT Lite LEDs and Push Buttons LEDs and Push ButtonsProcessor Pin Mapped as Flag Background Telemetry Channel Example ProgramsExample Programs ADSP-21364 EZ-KIT Lite Hardware Reference System Architecture System ArchitectureADSP-21364 EZ-KIT Lite Hardware Reference Parallel PortDEC DAI Interface SPI Interface Flag PinsExpansion Interface IO Flag PinsJtag Emulation Port Electret Microphone Select Switch SW6 Switch SettingsSwitch Settings Codec Setup Switch SW7Push Button Enable Switch SW9 SPI Disable Switch SW8Boot Mode and Clock Ratio Select Switch SW10 Loop-Back Test Switch SW11 USB Monitor LED ZLED3 Reset LED LED9Power LED LED10 General Purpose LEDs LED8-1Push Buttons SW1-4 Board Reset Push Button SW5Connectors ConnectorsExpansion Interface J1-J3 Audio Out RCA Connector J5 Audio In RCA Connector J4Headphone Out Jack J6 Pdif Coax Connectors J8 and J9 Power Jack J7SPI Header P2 USB Connector ZJ1DAI Header P3 Jtag Header ZP4 ADSP-21364 EZ-KIT Lite Bill of Materials FDC658P ADSP-21364 EZ-KIT Lite Bill Of Materials Vishay CRCW080510K0JNEA Panasonic ERJ-8GEYJ101V Vishay CRCW12061K65FKEA Vishay CRCW080564K9FKEA Vishay CRCW1206100KFKEA ADSP-21364 EZ-KIT Lite Schematic Engineer to Engineer Note EE-68 which can be found at DSP OSCSram 2MbAD1835 Audio Disconnects Signals from SPI Flash and AD1835ADC DAC1 DAC2 DAC3 DAC4 Right REDDAC1 Right DAC2 Right DAC1 Left DAC2 LeftDAC3 Right DAC4 Right DAC3 Left DAC4 LeftADC Right ADC Left DAC4Coax Spdif Coax InputOUT Analog Header Expansion Interface Type aSPI Header FDC658P PowerIndex Index Pdif USB

ADSP-21364 specifications

The Analog Devices ADSP-21364 is a high-performance digital signal processor (DSP) specifically designed for demanding applications in audio, industrial, and communications sectors. It is well-regarded for its powerful processing capabilities, extensive connectivity options, and energy efficiency, making it an ideal choice for complex digital signal processing tasks.

One of the standout features of the ADSP-21364 is its dual Harvard architecture, which allows for simultaneous access to program and data memory. This capability significantly improves performance by reducing bottlenecks, enabling faster execution of algorithms. The processor boasts a clock speed of up to 300 MHz, ensuring it can handle a wide range of real-time signal processing tasks.

The ADSP-21364 is equipped with a rich set of on-chip memory resources, including 64KB of program RAM and 64KB of data RAM. This substantial memory allocation enables the storage of intricate algorithms and large datasets, ensuring that high-performance applications can be executed without the need for external memory, thus reducing latency and power consumption.

Another notable feature of this DSP is its advanced multiprocessing capabilities. The processor includes six processing engines, allowing for parallel processing of multiple tasks. This architecture is particularly beneficial for applications that require simultaneous processing of audio signals, such as digital mixing or effects processing, enhancing the overall throughput.

In terms of connectivity, the ADSP-21364 is equipped with a wide range of I/O options, including serial ports, parallel ports, and a high-speed synchronous port. This versatility facilitates seamless integration with other system components, making the processor an excellent choice for embedded systems that rely on external data sources.

The ADSP-21364 also supports various industry-standard digital audio interfaces, such as I2S and TDM, enabling straightforward interfacing with audio codecs and other digital audio devices. Moreover, it features built-in hardware accelerators for efficient filtering, Fast Fourier Transform (FFT), and interpolation tasks, thereby enhancing its ability to handle complex audio signal processing.

On the power consumption front, the ADSP-21364 is designed with energy efficiency in mind. Its architecture allows for low-power operation modes, which are crucial in battery-powered applications where energy conservation is a priority.

In conclusion, the Analog Devices ADSP-21364 DSP is a robust solution for high-performance digital signal processing needs. With its dual Harvard architecture, extensive memory resources, advanced multiprocessing capabilities, versatile connectivity options, and energy-efficient design, it stands out as a premier choice for a variety of applications in the fields of audio processing, telecommunications, and industrial automation.
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