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17.26
Flash Memory Emulation in RAM
To provide real-time emulation in RAM of data that is to be written to the flash memory, a part of
the RAM can be overlaid on an area of flash memory (user MAT) that has been specified by the
RAM emulation register (RAMER). After the RAMER setting is made, the RAM is accessible in
both the user MAT area and as the RAM area that has been overlaid on the user MAT area. Such
emulation is possible in both user mode and user-program mode.
Figure 17-76 shows an example of the emulation of realtime programming of the user MAT area.
Start of emulation program
Set RAMER
Write the data for tuning to
the overlaid RAM area
Execute application program
Tuning OK?
Cancel RAMER setting
Program the user MAT
with the emulated block
End of emulation program
Yes
No
Figure 17-76 Emulation of Flash Memory in RAM
Summary of Contents for H8S/2318 series
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