HD64F3337YCP16V Datasheet, PDF (507/749 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Notes on Use of RAM Emulation Function
• Notes on Applying, Releasing, and Shutting Off the Programming Voltage (V_PP)
Care is necessary to avoid errors in programming and erasing when applying, releasing, and
shutting off V_PP, just as in the on-board programming modes. In particular, even if the
emulation function is being used, make sure that the watchdog timer is set when the P or E bit
of the flash memory control register (FLMCR) has been set, to prevent errors in programming
and erasing due to program runaway while V_PP is applied.
For details see section 20.7, Flash Memory Programming and Erasing Precautions (5).
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