r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 966

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 22 Flash Memory
22.7
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 user mode and user program mode.
Figure 22.17 shows an example of the emulation of realtime programming of the user MAT area.
Rev. 1.00 Sep. 21, 2007 Page 940 of 1124
REJ09B0402-0100
Flash Memory Emulation in RAM
Figure 22.17 Emulation of Flash Memory in RAM
No
Program the emulation block
Execute application program
Write the data for tuning to
Start of emulation program
End of emulation program
the overlapped RAM area
Cancel RAMER setting
in the user MAT
Set RAMER
Tuning OK?
Yes