LEDs and Push Buttons

General Purpose LEDs (LED8–1)

Eight general-purpose LEDs connect to the processor through a latch on signals AD7–0. The LEDs can be accessed by writing to the FLAG registers or by writing to a memory address. Refer to “LEDs and Push Buttons” on page 1-10for more information.

Reset LED (LED9)

When LED9 is lit (red), the master reset of all the major ICs is active.

Power LED (LED10)

When LED10 is lit (green), it indicates that power is being supplied to the board properly.

USB Monitor LED (ZLED3)

The USB monitor LED (ZLED3) indicates that USB communication has been initialized successfully, and you can connect to the processor using a VisualDSP++ EZ-KIT Lite session. Once the USB cable is plugged into the board, it takes approximately 15 seconds for the USB monitor LED to light. If the LED does not light, try cycling power on the board and/or reinstalling the USB driver (see the VisualDSP++ Installation Quick Refer- ence Card).

When VisualDSP++ is actively communicating with the EZ-KIT Lite target board, the LED can flicker, indicating communications handshake.

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ADSP-21364 EZ-KIT Lite Evaluation System Manual

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Analog Devices ADSP-21364 system manual General Purpose LEDs LED8-1, Reset LED LED9, Power LED LED10, USB Monitor LED ZLED3

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.