Title :
A BiCMOS 32-bit execution unit for 70 MHz VLSI computer
Author :
Tanaka, S. ; Hotta, T. ; Iwamura, M. ; Yamauchi, Takashi ; Bandoh, T. ; Hotta, A. ; Nakano, T. ; Iwamoto, S. ; Adachi, S.
Abstract :
A BiCMOS 32-bit execution has been developed to attain 70-MHz (typical) speed using 1.0-μm BiCMOS technology. The three important components are: (1) an arithmetic unit, which uses a 0.6-ns 8-bit carry propagation circuit; (2) a 2.5-ns 54-W×32-b four-port register file, which uses a BiCMOS sense circuit and dynamic bus drivers; and (3) a flag generator, which uses a novel all-bit-zero generation algorithm and generates in parallel with the arithmetic computation. A CLSI computer has been implemented with the above components, and 70-MHz register-register operation has been achieved
Keywords :
BIMOS integrated circuits; VLSI; microprocessor chips; 0.6 ns; 1 micron; 2.5 ns; 32 bit; 70 MHz; 8-bit carry propagation circuit; BiCMOS 32-bit execution unit; BiCMOS sense circuit; VLSI computer; all-bit-zero generation algorithm; arithmetic unit; dynamic bus drivers; flag generator; four-port register file; register-register operation;
Conference_Titel :
Custom Integrated Circuits Conference, 1989., Proceedings of the IEEE 1989
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/CICC.1989.56730
