HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 770

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

19.4.3
Mode Transitions: When the mode pins are set in the reset state and a reset-start is executed, the
chip enters one of the operating modes shown in figure 19.3. In user mode, flash memory can be
read but not programmed or erased.
Flash memory can be programmed and erased in boot mode, user program mode, and PROM
mode.
Rev.4.00 Sep. 07, 2007 Page 740 of 1210
REJ09B0245-0400
Notes: Only make a transition between user mode and user program mode when the CPU is
SWE = 1
(on-chip ROM
User mode
enabled)
Flash Memory Operating Modes
not accessing the flash memory.
* MD0 = 0, MD1 = 0, MD2 = 0, P66 = 1, P65 = 0, P64 = 0
On-board programming mode
program mode
SWE = 0
User
Figure 19.3 Flash Memory Mode Transitions
MD1 = 1,
MD2 = 1
RES = 0
RES = 0
MD1 = 1,
MD2 = 0
Reset state
Boot mode
RES = 0
*
RES = 0
PROM mode