| 摘要 |
<p>PURPOSE:To access a memory at a high speed with a simple constitution by starting the access with a false address strobe signal generated by a cycle start signal. CONSTITUTION:An access control part 6 is provided, and a cycle start signal ECS and an address strobe signal AS are inputted from an MPU 1 to the control part 6, and the control part 6 generates a pseudo address strobe signal F-AS and a cycle effective signal VLD-CYC and gives them to a DRAM controller 2. The access control part 6 consists of a sequencer or the like. The access is started with the pseudo address strobe signal F-AS. Thus, the memory is accessed at a high speed with the simple constitution.</p> |
