Multi-port RAM having functionally identical ports

Details Multi-port RAM having functionally identical ports Multi-port RAM having functionally identical ports

1998-01-13

2000-12-26

Robertson, David L.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711149, 36518904, 36523005, G06F 1300

Patent

active

061674877

ABSTRACT:
A memory having a SRAM, a DRAM, and two independent and functionally identical IO ports. Each port may be used as a read-only, a write-only, or a read-write port. One port may perform a read access to the SRAM, whereas the other port may carry out a write access to the SRAM in the same clock cycle. Each and every location of the SRAM may be accessed from any of the ports. Each port comprises a two-stage pipelined data path for providing a read or write access to the SRAM. Stage 1 decodes control and write enable signals, latches address signals and performs the output of read data. Stage 2 supports accesses to SRAM cells for writing and reading data. In a unified-port mode of operation, two 16-bit ports may be combined to produce a single port supporting a 32-bit write or read access to the SRAM. In a data burst mode of operation, each port may be programmed to select individual length of data bursts and individual burst type.

REFERENCES:
patent: 5321652 (1994-06-01), Ito
patent: 5557768 (1996-09-01), Braceras et al.
patent: 5566318 (1996-10-01), Joseph
patent: 5875470 (1999-02-01), Dreibelbis et al.
Hodges et al.; Analysis and Design of Digital Integrated Circuits; 1983; pp. 12-14.
Microsoft Press; Microsoft Press Computer Dictionary, 2nd ed.; 1994; pp. 57-58 and 373.
Intel; Pentium Pro Family Developer's Manual-vol. 1: Specifications; 1996, p. 3-9.

Affiliated with

Also associated with

Rating

Multi-port RAM having functionally identical ports does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-port RAM having functionally identical ports, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-port RAM having functionally identical ports will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1006551