Global patent index - EP 0990208 A1

EP 0990208 A1 2000-04-05 - DEVICE FOR EXCHANGING ASYNCHRONOUS DATA BETWEEN TWO MICROPROCESSORS

Title (en)

DEVICE FOR EXCHANGING ASYNCHRONOUS DATA BETWEEN TWO MICROPROCESSORS

Title (de)

VORRICHTUNG UM ASYNCHRONEN DATEN ZWISCHEN ZWEI MIKRORECHNERN AUSZUTAUSCHEN

Title (fr)

DISPOSITIF D'ECHANGE DE DONNEES ASYNCHRONES ENTRE DEUX MICROPROCESSEURS

Publication

EP 0990208 A1 (FR)

Application

EP 98930854 A

Priority

  • FR 9801255 W
  • FR 9707584 A

Abstract (en)

[origin: FR2765006A1] The invention concerns a device for exchanging asynchronous data between two microprocessors (10, 20) through an interface consisting of a random access memory (30). The invention is characterised in that said random access memory has a single access controlled by one of said microprocessors, called master microprocessor (10). Each instruction executed by said master microprocessor comprises execution cycles followed by at least two read-write data exchange cycles with the second microprocessor, called slave microprocessor (20) and the master microprocessor (10) is capable of prolonging the slave microprocessor (20) access time to the random access memory until the end of the last data exchange cycle (AM-R).

IPC 1-7 (main, further and additional classification)

G06F 15/16; G06F 15/167

IPC 8 full level (invention and additional information)

G06F 15/167 (2006.01)

CPC (invention and additional information)

G06F 15/167 (2013.01)

Citation (search report)

See references of WO 9858324A1

Designated contracting state (EPC)

DE ES GB IT NL

EPO simple patent family

FR 2765006 A1 19981224; FR 2765006 B1 19990716; CA 2294245 A1 19981223; EP 0990208 A1 20000405; WO 9858324 A1 19981223

INPADOC legal status

2001-09-26 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20010606

2001-03-07 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010123

2000-04-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991216

2000-04-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES GB IT NL