R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 664

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 17 Flash Memory (0.18-(m F-ZTAT Version)
17.10
For realtime emulation of the data written to the flash memory using the on-chip RAM, the on-
chip RAM area can be overlaid with several flash memory blocks (user MAT) using the RAM
emulation register (RAMER).
The overlaid area can be accessed from both the user MAT area specified by RAMER and the
overlaid RAM area. The emulation can be performed in user mode and user program mode.
Figure 17.17 shows an example of emulating realtime programming of the user MAT.
Note: To emulate the flash memory using the RAM, set the RAME bit in the system control
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REJ09B0104-0300
register (SYSCR) to 1.
Flash Memory Emulation Using RAM
Figure 17.17 RAM Emulation Flow
No
Execute application program
Write tuning data to overlaid
Cancel setting in RAMER
Program emulation block
Emulation program start
Emulation program end
Set RAMER
Tuning OK?
in user MAT
RAM area
Yes