公开(公告)号：CA2074633A1

公开(公告)日：1993-03-04

申请号：CA2074633

申请日：1992-07-24

Applicant: IBM

Inventor： BAKER ROBERT G ,  DEBAUCHE BRADLEY J ,  DOMBROWSKI CHRIS ,  JENSEN ERIC ,  MASSMAN LLOYD H ,  MCCAIN MELVIN ,  SWINGLE PAUL R

IPC: G06F15/16 ,  G06F9/48 ,  G06F9/38 ,  G06F13/12

公开(公告)号：CA2074633C

公开(公告)日：1998-03-31

申请号：CA2074633

申请日：1992-07-24

Applicant: IBM

Inventor： MASSMAN LLOYD H ,  DEBAUCHE BRADLEY J ,  SWINGLE PAUL R ,  DOMBROWSKI CHRIS ,  JENSEN ERIC ,  BAKER ROBERT G ,  MCCAIN MELVIN

IPC: G06F15/16 ,  G06F9/48 ,  G06F9/38 ,  G06F13/12

Abstract: A personal computer system includes a digital signal processor (DSP) subsystem that is connectable to a plurality of application specific hardware devices. A single DSP is operable under a DSP real-time operating system (RTOS) to concurrently handle a plurality of different signal processing functions on a real-time basis. A DSP data store is connected to the DSP and to the personal computer and includes addressable locations that emulate addressable I/O registers associated with the application specific hardware devices to enable the personal computer to run a plurality of application programs controlling operation of the hardware devices. Performance is enhanced for I/O read and write operations by delaying halting of the DSP allowing such operations to complete in a cycle during which the DSP is not accessing the data store.