HD64F7051SFJ20V Datasheet, PDF (630/843 Pages) Renesas Technology Corp – Hardware Manual Renesas 32-Bit RISC

Section 19 ROM (256 kB Version)
On-Chip RAM Area Divisions in Boot Mode: In boot mode, the RAM area is divided into an
area used by the boot program and an area to which the programming control program is
transferred via the SCI, as shown in figure 19.5. The boot program area cannot be used until the
execution state in boot mode switches to the programming control program transferred from the
host.
Boot program area
( 2 kbytes)
H'FFFFD800
H'FFFFDFFF
Programming
control program area
(8 kbytes)
H'FFFFFFFF
Figure 19.5 RAM Areas in Boot Mode
Note:
The boot program area cannot be used until a transition is made to the execution state for
the programming control program transferred to RAM. Note also that the boot program
remains in this area of the on-chip RAM even after control branches to the programming
control program.
Rev. 5.00 Jan 06, 2006 page 608 of 818
REJ09B0273-0500