Article ID: 000085156 Content Type: Troubleshooting Last Reviewed: 09/11/2012
Can I use the accumulator or adder components of the Stratix device digital signal processing (DSP) block without using the multiplier?
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Description No.You must use the DSP block's adder and accumulator components in conjunction with the multiplier. To use the DSP block as an adder/accumulator, set one of the inputs to the multiplier to "1". However, using a DSP block for an adder will not have the same performance as an adder implemented in logic cells