Controlling synchronous serial access to a multiport memory

Static information storage and retrieval – Read/write circuit – Sipo/piso

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365194, 365221, 36523005, 36523009, G11C 700

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active

055240984

ABSTRACT:
An integrated circuit multiport memory supports synchronous access through a serial port. In operation, a multiport memory of the present invention is coupled to a free running clock signal and a clock enable signal for internally synchronizing serial access. The external clock enable signal prevents incrementing the sequence of serial access when serial access is interrupted. In a synchronous memory of the present invention, the write data signal need not be held after the active edge of the serial clock, since serial data hold time is made independent of serial access memory write timing parameters. When serial data signals are conveyed on a bidirectional line of a asynchronous serial data port of the present invention, a direction control circuit of the present invention is responsive to transfer and write enable signals and independent of the conventional serial output enable signal.

REFERENCES:
patent: 4484187 (1984-11-01), Brown et al.
patent: 4498155 (1985-02-01), Mohan Rao
patent: 4553167 (1985-11-01), Kinoshita
patent: 4648077 (1987-03-01), Pinkham et al.
patent: 4734880 (1988-03-01), Collins
patent: 4897818 (1990-01-01), Redwine et al.
patent: 4941127 (1990-07-01), Hashimoto
patent: 4987559 (1991-01-01), Miyauchi et al.
patent: 4994912 (1991-02-01), Lumelsky et al.
patent: 5260905 (1993-11-01), Mori

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