| 摘要 |
A semiconductor storage apparatus is provided which can be used as a primary storage apparatus and a secondary storage apparatus and which allows both high accessibility and non-volatile storage of information. A volatile RAM section is a semiconductor memory adapted to load information to be stored and can be accessed at a high speed from the outside by way of a central control section. A non-volatile RAM section is another semiconductor memory into which information can be electrically reloaded and which does not require a power supply for holding stored contents. Under the control of a save/reload control section of the central control section, a memory mutual access control section is activated and saving/reloading of stored information is performed between the volatile RAM section and the non-volatile RAM section by a volatile RAM access control section and a non-volatile RAM access control section.
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