| 摘要 |
PURPOSE:To shorten a write time by starting a write operation right after a write signal arrives with no write-signal acceptance time by equipping a memory unit, used by various equipments in common, with a timing control circuit exclusively used for the write operation. CONSTITUTION:Once receiving starting signal 10, read-operation control circuit 5 generates timing used for both read operation and write operation. Receiving a write signal within the write-signal acceptance time, write-operation control circuit 6 inhibits immediately read-operation control circuit 5 from starting its read operation. Write information is fetched in formation control circuit 4 and then sent to memory part 3. Next, the timing needed for writing is sent to memory part 3 via driver circuit 2 and the write operation is finished within a fixed time by the write signal. |
