SH7065 Datasheet, PDF (749/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 19 256 kB Flash Memory (F-ZTAT)
19.2.2 Mode Transitions
When the mode pins and the FWE pin are set in the reset state and a reset start is executed, the
SH7065 enters one of the operating modes shown in figure 19.2. 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 programmer
mode.
MD1 = 0
FWE = 0
Reset state
User mode
*
RES = 0
FWE = 0
FWE = 1
MD1 = 0
FWE = 0
RES = 0
MD1 = 0
FWE = 0
User
program mode _*
MD2, ^{RES = 0}
1, 0 = 1
RES = 0
Programmer
mode
On-board programming mode
Boot mode
Note: * RAM emulation possible
Figure 19.2 Flash Memory Mode Transitions
Rev. 5.00 Sep 11, 2006 page 727 of 916
REJ09B0332-0500