Dual ported memory for a unified memory architecture

Details Dual ported memory for a unified memory architecture Dual ported memory for a unified memory architecture

1996-01-11

1998-10-13

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

G06F 1200

Patent

active

058227687

ABSTRACT:
A unified memory architecture includes a dual ported memory, core logic and a serial controller. The dual ported memory contains a random access port and a serial port to support concurrent accesses, after an initial serial port set-up time, through the serial port and the random access port. The core logic handles accesses to the random access port on the dual ported memory for all devices except the serial controller. The serial controller also accesses the dual ported memory through the random access port, and it also receives serial data, for use in a serial data operation, through the serial port. The serial controller generates a serial port load command through the random access port to effectuate the serial data transfer. The serial controller may be a graphics controller that utilizes the dual ported memory as a frame buffer. For this embodiment, the graphics controller executes screen refresh operations through use of the serial port. A serial port load command is defined for both a synchronous and an asynchronous interface for the dual ported memory.

REFERENCES:
patent: 4663735 (1987-05-01), Novak et al.
patent: 4858190 (1989-08-01), Yamaguchi et al.
patent: 4912680 (1990-03-01), Masaki et al.
patent: 4984214 (1991-01-01), Hiltebeitel et al.
patent: 4987559 (1991-01-01), Miyauchi et al.
patent: 4992985 (1991-02-01), Miyazawa et al.
patent: 5436870 (1995-07-01), Sato et al.
patent: 5524098 (1996-06-01), Holland et al.
patent: 5579458 (1996-11-01), Yokosuka et al.

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