Datasheet

Rev. 3.00 Sep. 28, 2009 Page xxi of xliv
REJ09B0350-0300
Item Page Revision (See Manual for Details)
22.8.4 Storable Areas for On-
Chip Program and Program Data
719 Description amended
• In an operating mode in which the external address
space is not accessible, such as single-chip mode,
the required procedure programs should be
transferred to the on-chip RAM before
programming/erasing starts (download result is
determined).
• The flash memory is not accessible during
programming/erasing. Programming/erasing is
executed by the program downloaded to the on-chip
RAM. Therefore, the procedure program that
initiates operation should be stored in the on-chip
RAM other than the flash memory.
• After programming/erasing starts, access to the
flash memory should be inhibited until FKEY is
cleared. The reset input state (period of RES = 0)
must be set to at least 100 μs when the operating
mode is changed and the reset start executed on
completion of programming/erasing. Transitions to
the reset state are inhibited during
programming/erasing. When the reset signal is
input, a reset input state (period of RES = 0) of at
least 100 μs is needed before the reset signal is
released.
• Switching of the MATs by FMATS should be
required when programming/erasing of the user
MAT is operated in user boot mode. The program
that switches the MATs should be executed from
the on-chip RAM.
(For details, see section 22.10, Switching between
User MAT and User Boot MAT.)
Make sure you know which MAT is currently
selected when witching them.
Table 22.9 Executable Memory
MAT
720 Table amended
Processing Contents User Program Mode
Operating Mode
User boot Mode*
Programming
Erasing
See table 22.10.
See table 22.11.
See table 22.12
See table 22.13
Note added
Note * Programming/Erasing is possible to the User
Mat.