Static information storage and retrieval – Read/write circuit – Multiplexing
Patent
1993-11-12
1995-09-05
Nguyen, Viet Q.
Static information storage and retrieval
Read/write circuit
Multiplexing
36523002, 365 63, 395307, 395410, G11C 800
Patent
active
054485215
ABSTRACT:
A system and method for connecting a short word length memory to a significantly wider bus operated in an address/data multiplexing mode. A mode of operation is defined for the bus whereby the bus lines are divided for purposes of memory accessing into a data group and an address group. The data group is operable bidirectionally to read or write memory, using the addresses provided on the group of address lines. This architecture and practice is particularly suited for a boot ROM used with processors, in that such ROMs are normally of relatively short word length while the processors are of relatively long word length and are accordingly connected to buses of similar long word length. Bridge logic interfaces the processor bus to the ROM for sequencing, timing and supplemental control in converting the data from the ROM format to the processor format.
REFERENCES:
patent: 4663732 (1987-05-01), Robinson
patent: 4716527 (1987-12-01), Graciotti
patent: 4852048 (1989-07-01), Morton
patent: 4974143 (1990-11-01), Yamada
patent: 5086407 (1992-02-01), McGarity et al.
patent: 5109332 (1992-04-01), Culley
patent: 5113369 (1992-05-01), Kinoshita
patent: 5217095 (1992-06-01), Kadono
patent: 5222046 (1993-06-01), Kreifels et al.
patent: 5293562 (1994-03-01), Pope
patent: 5303353 (1994-04-01), Matsuura et al.
patent: 5341488 (1994-08-01), Kobayashi
"Bus Size Independent Architecture", IBM TDB, vol. 28, No. 8, Jan./86, pp. 3579-3581.
Curry Sean E.
Dean Mark E.
Faucher Marc R.
Peterson James C.
Tanner Howard C.
International Business Machines - Corporation
Nguyen Viet Q.
Salys Casimer K.
LandOfFree
Connecting a short word length non-volatile memory to a long wor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Connecting a short word length non-volatile memory to a long wor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Connecting a short word length non-volatile memory to a long wor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-478454