Microcomputer having a dual port memory of supplying write data

Details Microcomputer having a dual port memory of supplying write data Microcomputer having a dual port memory of supplying write data

1992-03-30

1994-06-14

Gossage, Glenn

Static information storage and retrieval

Read/write circuit

Including signal comparison

36518904, 36518902, 36523005, G11C 700, G11C 11413

Patent

active

053216520

ABSTRACT:
A single chip microcomputer includes a multiport memory, such as a dual-port memory, having a data selector by which, when addresses which are input to first and second ports of the dual port memory are in agreement and the first and second ports are respectively set in a write mode and a read mode, write data supplied to the first port is directly transmitted as read data from the second port. The microcomputer also has an arithmetic logic unit which supplies the write data to the multiport memory and supplies the write data to selected memory cells in accordance with the selection being effected via an address decoder corresponding to the first port.

REFERENCES:
patent: 4599708 (1986-07-01), Schuster
patent: 4623990 (1986-11-01), Allen et al.
patent: 4811296 (1989-03-01), Garde
patent: 4858188 (1989-08-01), Kobayashi
P. S. Bennett, et al., "High Performance BIMOS Gate Arrays with Embedded Configurable Static Memory", IEEE 1987 Custom Integrated Circuits Conference, pp. 195-198.

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