Memory access selection circuit

Details Memory access selection circuit Memory access selection circuit

1982-11-01

1985-09-03

Thomas, James D.

Boots, shoes, and leggings

364200, G06F 946, G06F 1306

Patent

active

045396566

ABSTRACT:
A memory access selection circuit including a microprocessor, address, data and control multiplexers, a random access memory, storage circuits and related logic circuitry. This circuit allows both an external processor and the microprocessor to receive data from and transmit data to, the random access memory. The microprocessor controls access of the external processor to the random access memory by controlling and monitoring the multiplexer and storage circuits. This prevents erroneous data, address and control signals from appearing at the memory when switching between the microprocessor and the external processor as sources to the memory.

REFERENCES:
patent: 3921145 (1975-11-01), Emm et al.
patent: 4096572 (1978-06-01), Namimoto
patent: 4164787 (1979-08-01), Aranguren
patent: 4313161 (1982-01-01), Hardin et al.
patent: 4325116 (1982-04-01), Kranz et al.
patent: 4374413 (1983-02-01), Comfort et al.
patent: 4400771 (1983-08-01), Suzuki et al.
patent: 4402040 (1983-08-01), Evett
patent: 4415972 (1983-11-01), Adcock

Affiliated with

Also associated with

Rating

Memory access selection circuit 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 access selection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory access selection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-617245