h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 464

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

14.7
14.7.1
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
realtime. 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 14.18 shows an example of emulation of realtime flash memory.
Rev. 2.00, 03/04, page 432 of 534
Flash Memory Emulation in RAM
Emulation in RAM
Figure 14.18 Flowchart for Flash Memory Emulation in RAM
No
Write to flash memory emulation block
Write tuning data to overlap RAM
Execute application program
Start of emulation program
End of emulation program
Clear RAMER
Set RAMER
Tuning OK?
Yes