Electrical computers and digital processing systems: multicomput – Computer-to-computer direct memory accessing
Patent
1996-06-28
1999-07-27
Meky, Moustafa M.
Electrical computers and digital processing systems: multicomput
Computer-to-computer direct memory accessing
G06F 1300
Patent
active
059283262
ABSTRACT:
The invention pertains to the information systems field, in which a system is constituted by several machines which, in order to exchange data, communicate with one another through serial links. The invention relates more specifically to a device for exchanging messages between two data processing machines by means of a bidirectional serial link (2). In each machine, the device comprises a first outgoing buffer memory (20) for containing only request-type messages to be sent through the bidirectional serial link (2), a second outgoing buffer memory (21) for containing only response-type messages to be sent through the bidirectional serial link (2), a first incoming buffer memory (22) for containing only request-type messages received from the bidirectional serial link (2), a second incoming buffer memory (23) for containing only response-type messages received from the bidirectional serial link (2), a first switching unit (24) which authorizes the transfer of a message from the first outgoing buffer memory (20) or from the second outgoing buffer memory (21), respectively, to the bidirectional serial link (2) when a first incoming buffer memory (32) or a second incoming buffer memory (33), respectively, of the second machine has sufficient space to receive said message, and a second switching unit (25) which transfers the request-type messages or the response-type messages, respectively, received from the bidirectional serial link (2), to the first incoming buffer memory (22) or the second incoming buffer memory (23), respectively.
REFERENCES:
patent: 5463762 (1995-10-01), Morrisey et al.
IBM Technical Disclosure Bulletin, vol. 28, No. 12, May 1986, Armonk, NY, US., pp. 5364-5365 "Data Buffer Mechanism".
Boudou Alain
D'Hoe Michel
Halila Majed
Bull S.A.
Kondracki Edward J.
Meky Moustafa M.
LandOfFree
Programmable, multi-buffer device and method for exchanging mess does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable, multi-buffer device and method for exchanging mess, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable, multi-buffer device and method for exchanging mess will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-873782