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Configurable 2**n Power Incrementer

IP.com Disclosure Number: IPCOM000034953D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Levy, JR Savaglio, RJ [+details]

Abstract

Carry break circuits are shown for a binary incrementer which, when inserted at specific locations in a carry path, can be utilized to increment a binary value of any length by any power of two. By configuring incrementers utilizing custom bit slices with carry break circuits between the odd and even bit position, incrementers of variable length and capability can be structured. One custom bit slice contains an odd and even bit position with a carry break circuit between the two composed of a NAND circuit and two inverters which steer the carries when incrementing by 2N (where N is odd), i.e., 21, 23, 25,... etc.