Title :
Fully pipelined TSPC barrel shifter for high-speed applications
Author :
Pereira, R. ; Michell, J.A. ; Solana, J.M.
Author_Institution :
Dept. de Electron., Cantabria Univ., Santander, Spain
fDate :
6/1/1995 12:00:00 AM
Abstract :
In this paper we describe a TSPC (True Single-Phase-Clock) barrel shifter for high-speed, real time applications. The circuit consists of a shift and rotate array and a control unit, both having a pipeline structure, which allows on-line programming. Using 1.5 μm CMOS technology, a full custom prototype for 16-b data shift and rotate array has been implemented, with a simplified control unit, and testing circuitry. Worst case HSPICE simulations indicate a maximum operating frequency of over 100 MHz, both for the barrel with on-line programming and for the barrel implemented. The full functionality of the prototype has been tested up to 25 MHz, although each bit path has been tested at 100 MHz
Keywords :
CMOS logic circuits; application specific integrated circuits; pipeline processing; programmable logic arrays; real-time systems; synchronisation; timing; 1.5 micron; 100 MHz; 25 MHz; CMOS technology; TSPC barrel shifter; full custom prototype; fully pipelined barrel shifter; high-speed applications; online programming; real time applications; shift/rotate array; true single-phase-clock; CMOS technology; Circuit simulation; Circuit testing; Clocks; Frequency; Pipelines; Prototypes; Semiconductor device modeling; Signal generators; System testing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
