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Computers as Components, 3rd Edition by Marilyn Wolf

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2.5 TI C55x DSP

The Texas Instruments C55x DSP is a family of digital signal processors designed for relatively high performance signal processing. The family extends on previous generations of TI DSPs; the architecture is also defined to allow several different implementations that comply with the instruction set.

Accumulator architecture

The C55x, like many DSPs, is an accumulator architecture, meaning that many arithmetic operations are of the form accumulator = operand + accumulator. Because one of the operands is the accumulator, it need not be specified in the instruction. Accumulator-oriented instructions are also well-suited to the types of operations performed in digital signal processing, such as a1 x1 + a2 x2 + …. Of course, the ...

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