ADSP-21364 EZ-KIT Lite Hardware Reference

Push Buttons (SW1–4)

Four push buttons (SW1–4) are provided for general-purpose user input. Two push buttons connect to the FLAG pins of the processor. The other two connect to the DAI of the processor. The push buttons are active high and, when pressed, send a high (1) to the processor. Refer to “LEDs and Push Buttons” on page 1-10for more information. The push button enable switch (SW9) is capable of disconnecting the push buttons from the corresponding processor pins (refer to “Push Button Enable Switch (SW9)” on page 2-11for more information).

The processor signals and corresponding push buttons are summarized in Table 2-6.

Table 2-6. Push Button Connections

Processor

Push Button Reference

Processor

Push Button Reference

Signal

Designator

Signal

Designator

 

 

 

 

 

 

 

 

FLAG1

SW1

DAI_P19

SW3

 

 

 

 

FLAG2

SW2

DAI_P20

SW4

 

 

 

 

Board Reset Push Button (SW5)

The RESET push button (SW5) resets all of the ICs on the board.

ADSP-21364 EZ-KIT Lite Evaluation System Manual

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Image 49
Analog Devices ADSP-21364 system manual Push Buttons SW1-4, Board Reset Push Button SW5

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.