Multiport semiconductor memory device having RAM blocks and SAM blocks
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United States of America Patent
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Jun 7, 1994
Grant Date -
N/A
app pub date -
Dec 24, 1991
filing date -
Apr 27, 1990
priority date (Note) -
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Abstract
A multiport semiconductor memory device of this invention is constructed as having: a RAM having a first RAM unit and a second RAM unit; a SAM having a first SAM unit and a second SAM unit; and transfer circuit capable of selectively taking one of a split transfer state and a cross transfer state, in the split transfer state the first RAM unit and the first SAM unit being connected together and the second RAM unit and the second SAM unit being connected together, and in the cross transfer state the first RAM unit and the second SAM unit being connected together and the second RAM unit and the first SAM unit being connected together.
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