SH7147 Datasheet, PDF (829/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 20 Flash Memory
20.2.6 Programming/Erasing Interface
Programming/erasing is executed by downloading the on-chip program to the on-chip RAM and
specifying the program address/data and erase block by using the interface registers/parameters.
The procedure program is made by the user in user program mode and user boot mode. The
overview of the procedure is as follows. For details, see section 20.5.2, User Program Mode.
Start user procedure
program for
programming/erasing.
Select on-chip program
to be downloaded and
set download destination
Download on-chip
program by setting VBR,
FKEY, and SCO bits.
Initialization execution
(on-chip program execution)
Programming (in 128-byte
units) or erasing (in
one-block units)
(on-chip program execution)
No
Programming/
erasing
completed?
Yes
End user procedure
program
Figure 20.5 Overview of User Procedure Program
Rev. 3.00 Oct. 06, 2008 Page 805 of 1080
REJ09B0230-0300