HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 853
HD6412332
Manufacturer Part Number
HD6412332
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412332.pdf
(1244 pages)
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Section 19 ROM
19.18
Flash Memory Emulation in RAM
19.18.1 Emulation in RAM
Making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped
onto the flash memory area so that data to be written to flash memory can be emulated in RAM in
real time. After the RAMER setting has been made, accesses can be made from the flash memory
area or the RAM area overlapping flash memory. Emulation can be performed in user mode and
user program mode. Figure 19.44 shows an example of emulation of real-time flash memory
programming.
Start of emulation program
Set RAMER
Write tuning data to overlap
RAM
Execute application program
No
Tuning OK?
Yes
Clear RAMER
Write to flash memory emulation
block
End of emulation program
Figure 19.44 Flowchart for Flash Memory Emulation in RAM
Rev.4.00 Sep. 07, 2007 Page 823 of 1210
REJ09B0245-0400
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