Memory system with memory presence and type detection using mult

Details Memory system with memory presence and type detection using mult Memory system with memory presence and type detection using mult

1996-03-28

1999-01-12

Gossage, Glenn

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

711170, 711115, 711 5, 36518903, 36523003, 36523002, G06F 1300, G11C 700

Patent

active

058601341

ABSTRACT:
A method and apparatus for enabling the detection of memory presence and identification of memory type in a memory system are disclosed. A memory controller may be connected to a memory bank inserted into a memory bank insertion area, via an interconnect line such as row address strobe (RAS) signal line commonly used to activate or deactivate the memory banks. Presence detect signals are multiplexed over the interconnect line for detecting whether a memory bank is connected to a given line. For connected memory banks, type detection operations may be performed on the interconnect line for detecting the type of memory bank connected thereto. The presence and type detection operations generate output signals to permit the dynamic configuration of a memory system controller. Accordingly, it is possible to implement memory systems capable of accommodating differing quantities and types of memory banks with a single controller utilizing a single interconnect line to enable presence detection and type identification to enable the appropriate configuration thereof. In an embodiment utilizing a select line as the interconnect line, implementation of the presence and type detection is accomplished without the addition of dedicated detect lines to the memory system.

REFERENCES:
patent: 3815103 (1974-06-01), Holtey et al.
patent: 4030080 (1977-06-01), Burkett et al.
patent: 4215397 (1980-07-01), Hom
patent: 4485437 (1984-11-01), Kinghorn
patent: 4575714 (1986-03-01), P. W. Rummel
patent: 4654787 (1987-03-01), Finnell et al.
patent: 4701878 (1987-10-01), Gunkel et al.
patent: 4787060 (1988-11-01), Boudreau et al.
patent: 4860252 (1989-08-01), Sykora
patent: 4899272 (1990-02-01), Fung et al.
patent: 4926314 (1990-05-01), Dhuey
patent: 4980850 (1990-12-01), Morgan
patent: 5040153 (1991-08-01), Fung et al.
patent: 5164916 (1992-11-01), Wu et al.
patent: 5241663 (1993-08-01), Rohwer
patent: 5253357 (1993-10-01), Allen et al.
patent: 5446860 (1995-08-01), Dresser et al.
patent: 5524232 (1996-06-01), Hajeer
patent: 5539912 (1996-07-01), Clarke, Jr.
T. T Dang et al., "Memory Presence Circuit for a Processor Complex", IBM Technical Disclosure Bulletin, vol. 36, No. 10, Oct. 1993, pp. 325-326.

Affiliated with

Also associated with

Rating

Memory system with memory presence and type detection using mult does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory system with memory presence and type detection using mult, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory system with memory presence and type detection using mult will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1525358