Semiconductor frame buffer memory

Details Semiconductor frame buffer memory Semiconductor frame buffer memory

1986-10-24

1989-05-23

Hecker, Stuart N.

Static information storage and retrieval

Addressing

Plural blocks or banks

36518905, 340799, 340801, G11C 800, G09G 102

Patent

active

048336572

ABSTRACT:
A semiconductor memory for writing or reading data words in response to prescribed bank address data and bit address data, each word having a prescribed amount of bits, is described. The memory includes a memory array for storing the data words. The memory array includes at least two memory banks adjacent to one another, each bank having a bit area corresponding to the prescribed amount of bits, buffer memory for temporarily storing the data word for writing into the memory array or the data word read from the memory array, a first source for applying the bank address data to the memory array to access the memory banks, a second source for applying the bit address data to the memory banks to access prescribed bit locations of the memory banks, and logic circuitry responsive to the bit address data for cyclically shifting the data word stored in the buffer memory by an amount corresponding to the value of the received bit address data.

REFERENCES:
patent: 4442503 (1984-04-01), Schutt
patent: 4667190 (1987-05-01), Fant
patent: 4667313 (1987-05-01), Pinkham et al.
patent: 4688032 (1987-08-01), Saito et al.
patent: 4742474 (1988-05-01), Knierim

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