HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 610

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 ROM (256 kB Version)
19.2.4
Emulation should be performed in user mode or user program mode. When the emulation block
set in RAMER is accessed while the emulation function is being executed, data written in the
overlap RAM is read.
User Mode
Rev. 5.00 Jan 06, 2006 page 590 of 818
REJ09B0273-0500
User Program Mode
When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and
writes should actually be performed to the flash memory.
When the programming control program is transferred to RAM, ensure that the transfer
destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to
be rewritten.
Flash Memory Emulation in RAM
Application program
Emulation block
Execution state
Flash memory
(emulation is performed
on data written in RAM)
Overlap RAM
RAM
SCI