Flash memory controller, flash memory system, and flash memory control method

摘要

A flash memory controller configures, in a polling interval storage part, a polling interval, which is a time interval for outputting an acquisition signal for acquiring from a flash memory, information showing whether or not the execution of programming or erasing has ended after the execution of the programming or erasing has started with respect to the flash memory. The flash memory controller sends either a program command or an erase command to the flash memory, and thereafter, outputs the acquisition signal in accordance with the configured polling interval until information denoting that the execution of either the programming or the erasing has ended is received.