Synchronous memory circuit
AssigneeHitachi, Ltd.
InventorsMasatoshi Hasegawa, Michiaki Nakayama, Masatoshi Sakamoto
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Abstract
A semiconductor integrated circuit device including a memory circuit with both high access efficiency and high memory efficiency in a simple configuration is provided. In a memory read control circuit, burst length is changed based on whether or not a read instruction is issued at a cycle after a cycle at which a read instruction /R is issued. And, in a memory write control circuit, burst length is changed based on whether or not a write instruction is issued at a cycle before a cycle at which a write instruction /W is issued.
Claims8
A synchronous memory circuit comprising:
- a control circuit changing a burst length of read data corresponding to a first read instruction based on whether or not a second read instruction is issued at a cycle after a cycle at which the first read instruction is issued.
A synchronous memory circuit comprising:
- a control circuit changing a burst length of write data corresponding to a first write instruction based on whether or not a second write instruction is issued at a cycle before a cycle at which the first write instruction is issued.
Dependencies are inferred from the claim text.