Section 17 Flash Memory
Rev. 3.00 Sep. 27, 2007 Page 579 of 758
REJ09B0243-0300
17.2.6 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. The overview of the procedure
is as follows. For details, see section 17.5.2, User Program Mode (Only in On-Chip 128-Kbyte
and 64-Kbyte ROM Version).
Download on-chip
program by setting VBR,
FKEY, and SCO bits.
Initialization execution
(on-chip program execution)
Select on-chip program
to be downloaded and
set download destination
Programming (in 128-byte
units) or erasing (in
one-block units)
(on-chip program execution)
Start user procedure
program for
programming/erasing.
End user procedure
program
Programming/
erasing
completed?
No
Yes
Figure 17.5 Overview of User Procedure Program
(1) Selection of On-Chip Program to be Downloaded and Setting of Download Destination
This LSI has programming/erasing programs and they can be downloaded to the on-chip
RAM. The on-chip program to be downloaded is selected by setting the corresponding bits in
the programming/erasing interface registers. The download destination can be specified by
FTDAR.
Summary of Contents for SH7124 R5F7124
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