Circulator chain memory command and address bus topology

Details Circulator chain memory command and address bus topology Circulator chain memory command and address bus topology

2006-11-07

2006-11-07

Elmore, Stephen C. (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S001000, C711S005000, C711S100000, C711S151000, C711S154000, C711S158000, C365S230010, C365S230030

Reexamination Certificate

active

07133962

ABSTRACT:
Embodiments of the invention provide a memory command and address (CA) bus architecture that can accommodate higher CA data output frequencies with reduced signal degradation. For one embodiment of the invention the CA signal is routed to a first of two dual in-line memory modules (DIMMs) of a two-DIMM/channel memory bus design. The CA signal is then divided into components, with each CA signal component routed serially through a group of dynamic random access memory (DRAM) chips on the first DIMM. The CA signal components are then recombined and routed to the second DIMM. The recombined CA signal is then divided again into components, with each CA signal component routed serially through a group of dynamic random access memory (DRAM) chips on the first DIMM and the CA signal components are then recombined. In one embodiment, after routing through each DRAM, the CA signal is terminated on the DIMM.

REFERENCES:
patent: 5651129 (1997-07-01), Yokote et al.
patent: 5668834 (1997-09-01), Takekuma et al.
patent: 6125419 (2000-09-01), Umemura et al.
patent: 6144576 (2000-11-01), Leddige et al.
patent: 6154821 (2000-11-01), Barth et al.
patent: 6446174 (2002-09-01), Dow
patent: 6477614 (2002-11-01), Leddige et al.
patent: 6788548 (2004-09-01), Dobler et al.
patent: 6842864 (2005-01-01), Barth et al.
patent: 6934785 (2005-08-01), Lee et al.
patent: 2005/0033905 (2005-02-01), Leddige et al.
International Search Report, Mar. 16, 2005, 4 pages, PCT/US2004/029056.
Crisp R, “Applicatin for Rambus Interface Technology” Rambus Information, XP-002163003, pp. 1-6. Feb. 10, 1998.

Affiliated with

Also associated with

Rating

Circulator chain memory command and address bus topology does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circulator chain memory command and address bus topology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circulator chain memory command and address bus topology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3648849