| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a microprocessor, an interface unit, an interface method and a data movement method which are improved in usability. SOLUTION: The microprocessor has a system clock, and there are provided an interface unit, an address access unit, a PC card control means and an external clock means. The interface unit makes a memory and the PC card directly connectable to the microprocessor. The address access unit corresponds to the system clock changing from the first status to the second status in order to access an external address space. The PC card control means stores setup data of the PC card including a setup time for address signal control and a hold time for holding address signal. The external clock means is connected to the memory, and also the system clock is connected to be used for a synchronous DRAM(dynamic random access memory).</p> |
