Datasheet

Section 20 Flash Memory (0.35-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 835 of 1136
REJ09B0109-0700
Boot mode
On-board programming mode
User
program mode
User mode
(on-chip ROM
enabled)
Reset state
Programmer
mode
RES = 0
SWE = 1
SWE = 0
Note: Only make a transition between user mode and user program mode when the CPU is
not accessing the flash memory.
RES = 0
RES
= 0
RES
= 0
MD2 = 1
MD0 = 1, MD1 = 1, MD2 = 0
MD0 = 0, MD1 = 0,
MD2 = 0, P50 = 0,
P51 = 0, P52 = 1
Figure 20.2 Flash Memory State Transitions
Table 20.1 Differences between Boot Mode and User Program Mode
Boot Mode User Program Mode
Total erase Yes Yes
Block erase No Yes
Programming control program
*
Program/program-verify Erase/erase-verify/program/
program-verify
Note: * To be provided by the user, in accordance with the recommended algorithm.