Semiconductor storage device

Details Semiconductor storage device Semiconductor storage device

2008-07-29

2008-07-29

Phung, Anh (Department: 2824)

Static information storage and retrieval

Addressing

Multiple port access

C365S194000

Reexamination Certificate

active

11580061

ABSTRACT:
A semiconductor storage device has a simple control circuit that is added to a general one-port RAM. Taking a port-A clock signal as the reference, the control circuit generates a select signal that selects a port A during the period from elapse of a first predetermined time from the reference timing until a second predetermined time has elapsed and selects a port B during other periods. The control circuit generates a port-A delayed clock signal in the period in which the port A is selected. The control circuit generates a port-B delayed clock signal during the period from elapse of the second predetermined time until a third predetermined time has elapsed. The control circuit generates a conflict monitoring signal during the period from the reference timing until the second predetermined time has elapsed. When a clock signal is supplied from the port B while the conflict monitoring signal is being generated, the port-B delayed clock signal is masked while the conflict monitoring signal is being generated. After the conflict monitoring signal is stopped, the B-port delayed clock signal is generated as a port-B clock signal.

REFERENCES:
patent: 6318707 (2001-11-01), Hara et al.
patent: 6853589 (2005-02-01), Tojima et al.
patent: 7061822 (2006-06-01), Jung
patent: 2001-094986 (2001-04-01), None
patent: 2001-101861 (2001-04-01), None
patent: 2002-108690 (2002-04-01), None

Affiliated with

Also associated with

Rating

Semiconductor storage device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor storage device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor storage device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3950951