Programming/Erasing Interface - Renesas H8S/2100 Series Hardware Manual

Section 24 Flash Memory
24.5

Programming/Erasing Interface

Programming/erasing of the flash memory is done by downloading an on-chip
programming/erasing program to the on-chip RAM and specifying the start address of the
programming destination, the program data, and the erase block number using the
programming/erasing interface registers and programming/erasing interface parameters.
The procedure program for user program mode is made by the user. Figure 24.5 shows the
procedure for creating the procedure program. For details, see section 24.8.2, User Program Mode.
Figure 24.5 Procedure for Creating Procedure Program
Rev. 1.00 Apr. 28, 2008 Page 754 of 994
REJ09B0452-0100
Start procedure program for
programming/erasing
Select on-chip program
to be downloaded and
specify destination
Download on-chip program
by setting FKEY and
SCO bit in FCCS
Execute initialization
(downloaded program execution)
Programming (in 128-byte units)
or erasing (in 1-block units)
(downloaded program execution)
Programming/erasing
completed?
Yes
End procedure program
No