Phytec kitCON-161CS, Hardware Manual

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kitCON-161CS/JC/JI
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PHYTEC Meßtechnik GmbH 1999 L-356e_2
6.2 External Flash
Flash is a highly functional means of storing non-volatile data. The
kitCON-161CS/JC/JI can house Flash devices of type 29F010
(128 kByte memory) or of type 29F040 (512 kByte memory) as Flash
memory. Use of 5 V Flash devices means that no dedicated program-
ming voltage is required on board.
On-board programming is done with a utility program developed by
PHYTEC, so called "FlashTools" (refer to section 12, "FlashTools").
FlashTools must be loaded with the Bootstrap Loader prior to use.
Use of a Flash device as the only means of code storage results in no
or limited usability of the Flash memory as non-volatile memory for
data. This is due to the internal structure of the Flash device, as during
the Flash-internal programming process the reading of data from
Flash is not possible. Hence, for Flash-programming, program
execution must be transferred out of Flash (such as into von-Neumann
RAM). This usually equals the interruption of a "normal" program
execution cycle.
As of the printing of this manual, Flash devices generally have a life
expectancy of at least 100,000 Erase-/Program-cycles.