![]() ![]() First, it eliminates wide buses and simplifies wire routing. A major advantage of bit-serial over bit-parallel arithmetic is that it significantly reduces chip area. Lars Wanhammar, in DSP Integrated Circuits, 1999 11.6 BIT-SERIAL ARITHMETICīit- serial arithmetic is a viable alternative in digital signal processing applications to traditional, bit-parallel arithmetic. The discussion in this chapter focused on the basic concepts and algorithms: more advanced developments of digit-serial arithmetic and its applications are covered in the references at the end. The MSDF mode allows overlapping successive operations after a few cycles, which is important in implementing recursive algorithms. These modes have different characteristics in terms of delays, cost, and applicability. Two modes of computation are considered: right-to-left (a conventional LSD first approach), and left-to-right (MSDF or online approach). This approach is well-suited to the design of massively parallel implementations. It allows appropriate choice of radix, digit set, and precision to satisfy design needs. Ercegovac, Tomás Lang, in Digital Arithmetic, 2004 9.4 Concluding Remarksĭigit- serial arithmetic is attractive in implementations where the area and the interconnection width between the modules should be minimized while the increased latency is acceptable.
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