A case for digit serial VLSI signal processors

Mary Jane Irwin, Robert Michael Owens

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Digit serial architectures, which have digit serial data transmission combined with digit serial computation, are uniquely suited for the design of VLSI signal processors. The speed disadvantages of digit serial input are overcome if the input is overlapped with the computation-what we refer to as digit pipelining. Digit pipelining allows us to break up long strings of combinatorial logic and, thus, to increase the clock rate of the system while still preserving much of the circuit structure. In general, for a modest increase in hardware (which in VLSI translates to a modest increase in area) digit serial architectures offer the potential of higher throughput than equivalent word parallel architectures. Several designs for various digit serial adders are presented. Then two filter examples are discussed that use the digit serial adders to achieve digit pipelining.

Original languageEnglish (US)
Pages (from-to)321-334
Number of pages14
JournalJournal of VLSI Signal Processing
Issue number4
StatePublished - Apr 1990

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Signal Processing
  • Electrical and Electronic Engineering


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