Analog Devices ADSP-21364 system manual SPI Disable Switch SW8, Push Button Enable Switch SW9

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ADSP-21364 EZ-KIT Lite Hardware Reference

SPI Disable Switch (SW8)

The SPI interface switch (SW8) disables the SPI chip select lines connected to the SPI flash memory and the AD1835A audio codec. The switch also disables the ADC_LRCLK and ADC_BCLK signals on the AD1835A device. The switch allows a customer to re-use the same pins on the SPI interface and on the expansion interface. The SW8 default is all positions ON unless any of the switch signals or the SPI interface signals are used on the expansion connector or via an EZ-Extender®.

Push Button Enable Switch (SW9)

The push button enable switch (SW9) disconnects the push buttons from the corresponding processor pins. This allows the signals to be used else- where on the board. Table 2-3shows the SW9 connections. By default, all of the switch positions are ON.

Table 2-3. Push Button Enable Switch (SW9) Connections

Switch Position

Push Button Reference Designator

Processor Pin

 

 

 

 

 

 

1

SW1

FLAG1

 

 

 

2

SW2

FLAG2

 

 

 

3

SW3

DAI_P19

 

 

 

4

SW4

DAI_P20

 

 

 

Position 6 of SW9 connects or disconnects the latch-enable pin of the LED to the logical OR of the ~WE and ~LED_CS signals. When position 6 is OFF, the latch-enable pin of the LED latch (U24) is pulled high, making the latch transparent. In this position, the value of the LEDs is directly con- nected to AD7–0.

ADSP-21364 EZ-KIT Lite Evaluation System Manual

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Contents ADSP-21364 EZ-KIT Lite Evaluation System Manual Trademark and Service Mark Notice Limited WarrantyCopyright Information DisclaimerRegulatory Compliance Page Contents Using ADSP-21364 EZ-KIT Lite ADSP-21364 EZ-KIT Lite Evaluation System Manual Vii Index Preface Page Preface Purpose of This Manual Intended AudiencePurpose of This Manual Manual Contents What’s New in This Manual Technical or Customer SupportWhat’s New in This Manual Supported Processors Product InformationMyAnalog.com Processor Product Information Related DocumentsProduct Information Related VisualDSP++ Publications Online Technical DocumentationAccessing Documentation From Windows Accessing Documentation From VisualDSP++Accessing Documentation From Web Printed ManualsVisualDSP++ Documentation Set Notation Conventions Data SheetsNotation Conventions Hardware Tools Manuals Processor 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 Example Programs Background Telemetry ChannelExample 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 Power LED LED10 Reset LED LED9General Purpose LEDs LED8-1 USB Monitor LED ZLED3Push Buttons SW1-4 Board Reset Push Button SW5Connectors ConnectorsExpansion Interface J1-J3 Audio In RCA Connector J4 Audio Out RCA Connector J5Headphone Out Jack J6 Pdif Coax Connectors J8 and J9 Power Jack J7USB Connector ZJ1 SPI Header P2DAI 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 2MbADC DAC1 DAC2 DAC3 DAC4 Disconnects Signals from SPI Flash and AD1835Right RED AD1835 AudioDAC1 Right DAC2 Right DAC1 Left DAC2 LeftDAC3 Right DAC4 Right DAC3 Left DAC4 LeftADC Right ADC Left DAC4Spdif Coax Input CoaxOUT Analog Expansion Interface Type a HeaderSPI 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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