Computer capable of rewriting an area of a non-volatile memory with a boot program during self mode operation of the computer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 1, 2004
Grant Date -
Jul 12, 2001
app pub date -
Jan 2, 2001
filing date -
Jan 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is provided a computer that can safely rewrite any one of the areas where a boot program is stored with fewer actions in the self-mode. A nonvolatile memory is divided into a plurality of areas, each of which is separately erasable and includes a user area and a boot area designation flag indicating whether the corresponding user area is specified as a boot area. An area designation flag specifies the user area containing a boot program among a plurality of user areas. A CPU sets the value of the area designation flag based on the values of a plurality of boot area designation flags. When a system is started, the user area including the program for starting the operation of the CPU is determined based on the value of the area designation flag.
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