HD6473032F16 Datasheet, PDF (592/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 18 ROM
Flash memory
Programming data
SCI
RAM
Application program
Overlap RAM
(programming data)
Programming control
program execution state
Figure 18.4 Writing Overlap RAM Data in User Program Mode
18.2.5 Differences between Boot Mode and User Program Mode
Item
Boot Mode
User Program Mode
Total erase
Yes
Yes
Block erase
Programming control program^*
No
Boot program is initiated,
and programming control
program is transferred from
host to on-chip RAM, and
executed there.
Yes
Program that controls
programming program in flash
memory is executed. Program
should be written beforehand in
PROM mode and boot mode.
Note: * To be provided by the user, in accordance with the recommended algorithm.
Rev. 3.00 Mar 21, 2006 page 562 of 814
REJ09B0302-0300