(19)
(11) EP 0 772 829 A1

(12)

(43) Date of publication:
14.05.1997 Bulletin 1997/20

(21) Application number: 96920253.0

(22) Date of filing: 16.05.1996
(51) International Patent Classification (IPC): 
G06F 12/ 08( . )
(86) International application number:
PCT/US1996/007091
(87) International publication number:
WO 1996/037844 (28.11.1996 Gazette 1996/52)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 26.05.1995 US 19950452306

(71) Applicant: NATIONAL SEMICONDUCTOR CORPORATION
Santa Clara, CA 95051 (US)

(72) Inventors:
  • DIVIVIER, Robert
    San Jose, CA 95120 (US)
  • NEMIROVSKY, Mario, D.
    San Jose, CA 95129 (US)
  • BIGNELL, Robert
    San Jose, CA 95127 (US)

(74) Representative: Horton, Andrew Robert Grant, et al 
BOWLES HORTON Felden House Dower Mews High Street
Berkhamsted Hertfordshire HP4 2BL
Berkhamsted Hertfordshire HP4 2BL (GB)

   


(54) A PIPELINED MICROPROCESSOR THAT MAKES MEMORY REQUESTS TO A CACHE MEMORY AND AN EXTERNAL MEMORY CONTROLLER DURING THE SAME CLOCK CYCLE