HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 932

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
21.1.1
When the mode pins are set in the reset state and a reset start is performed, the MCU transitions to
an operating mode as shown in figure 21.2.
• Flash memory cannot be read, programmed, or erased in ROM invalid mode.
• Flash memory can be read in user mode, but cannot be programmed or erased.
• Flash memory can be read, programmed, or erased on the board only in user program mode,
• Flash memory can be read, programmed, or erased by means of the PROM programmer in
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REJ09B0109-0700
user boot mode, and boot mode.
PROM mode.
ROM invalid
User mode
Operating Mode
mode
FLSHE = 0
FLSHE = 1
Figure 21.2 Mode Transition of Flash Memory
ROM invalid
mode setting
RES = 0
User program
mode
Reset state
On-board programming mode
User boot
mode
PROM mode setting
RES = 0
PROM mode
Boot mode