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：BR9203416A

公开(公告)日：1993-04-06

申请号：BR9203416

申请日：1992-09-01

Applicant: IBM

Inventor： BAKER ROBERT G ,  DEBAUCH BRADLEY J ,  DOMBROWSKI CHRIS ,  JENSEN ERIC ,  MASSMAN LLOYD H ,  MOCAIN MELVIN ,  SWINGLE PAUL RICHARD

IPC: G06F15/16 ,  G06F9/48 ,  G06F13/14

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.

公开(公告)号：BR9201349A

公开(公告)日：1992-12-01

申请号：BR9201349

申请日：1992-04-13

Applicant: IBM

Inventor： DESAI DHRUV M ,  MASSMAN LLOYD H ,  SMITH BRUCE A

IPC: G06F13/00 ,  G06F13/38

Abstract: This invention relates to the adaptation of personal computers to communication through external networks, and more particularly to the ready adaptation of such computers to networks of varying characteristics, such as telecommunications networks located in various countries of the world. The adapter has first and second controllable digital/analog convertors for exchanging signals with a digital signal processor of the computer and controllable by a bus interface controller of the computer for converting signals between digital and analog forms. The adapter also has first and second connectors of the type required by the particular external network, coupled to the convertors for exchanging signals with the external network and for exchanging signals with an external device such as a telephone set.