ADSP-21266SKBCZ-2D

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The ADSP-21266SKBCZ-2D is an embedded digital signal processor (DSP) designed primarily for use in real-time audio and communications products. This DSP is capable of both fixed-point and floating point based computational processes for fast and reliable data processing. The DSP is able to handle applications such as digital audio processing, vocoding and equalizers, image and video processing, and communications algorithms like echo cancellation, modems, and QAM/QPSK modulations. In addition, the ADSP-21266SKBCZ-2D can be used for general purpose of computing tasks like digital filter implementations and control loop processing.

The ADSP-21266SKBCZ-2D is capable of performing operations at a maximum speed of 80 MHz and 5.6 MIPS of instruction throughput. It is also equipped with 16 Simultaneous Multi-Access (SIMA) macro instructions across eight SIMA instruction units, making it an efficient processor for applications that require the highest throughput of operations.

One of the main features of the ADSP-21266SKBCZ-2D is its ability to support direct memory access (DMA) transactions. Direct Memory Access allows the ADSP-21266SKBCZ-2D to access memory locations with no CPU involvement, thus speeding up data access and reducing latency. The DMA controller can be used for both local and external memory access operations.

The ADSP-21266SKBCZ-2D also supports rate conversion capabilities that allow for the efficient transfer of audio and video streams between multiple standards or media formats. This enables the DSP to rapidly and accurately convert media streams with minimal processor utilization. The rate conversion block in the ADSP-21266SKBCZ-2D is based on a multi-stage resampling architecture, which provides flexible options for controlling the quality of the output.

The ADSP-21266SKBCZ-2D integrates two 32-bit data buses for efficient data access and processing. The data buses can be used independently or combined for data transfers in either direction from/to internal and external sources. The ADSP-21266SKBCZ-2D also includes two instruction buses, allowing for independent instruction fetch from multiple instruction sources.

For additional storage and data processing, the chip includes two SRAMs (512K and 256K) for local memory storage and one 32K ROM for booting the chip. The ADSP-21266SKBCZ-2D also supports external DRAM and Flash memory access, allowing for further data expandability and flexibility. The chip also features a double-buffered register configuration that allows for low latency data transfer.

The ADSP-21266SKBCZ-2D is designed to use ALU instructions that span multiple cycles. This provides an efficient and effective architecture for the optimization of fixed-point computations. The ALU instructions are capable of performing divide, multiply-accumulate, sign extension and 16-bit multiplications. The chip also supports a wide range of single-cycle instructions such as add, subtract, multiply and compare.

The ADSP-21266SKBCZ-2D is also capable of floating-point computations, allowing for high-performance applications such as signal processing and real-time control applications. The ADSP-21266SKBCZ-2D supports the most commonly used IEEE 754 single-precision data formats.

The ADSP-21266SKBCZ-2D is an advanced and powerful embedded DSP that has a wide range of applications and is capable of delivering high-performance operations at a maximum speed of 80 MHz and 5.6 MIPS of instruction throughput.

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