HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 964

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
(1)
Parts of the procedure program that are made by the user, like download request,
programming/erasing procedure, and determination of the result, must be executed in the on-chip
RAM. The on-chip program that is to be downloaded is all in the on-chip RAM. Note that area in
the on-chip RAM must be controlled so that these parts do not overlap.
Figure 21.10 shows the program area to be downloaded.
programming/erasing
Rev.7.00 Mar. 18, 2009 page 896 of 1136
REJ09B0109-0700
processing period
Unusable area in
(Size : 4 kbytes)
On-Chip RAM Address Map when Programming/Erasing Is Executed
downloaded
Area to be
Figure 21.10 RAM Map when Programming/Erasing Is Executed
Initialization + programming program
Programming/erasing program entry
Initialization + erasing program
Area that can be used by user
Area that can be used by user
Initialization program entry
+ Programming finished
Programming finished
(Return value: 1 byte)
< On-chip RAM >
System use area
(15 bytes)
DPFR
or
Address
RAMTOP (H'FF4000/H'FF6000/H'FF8000)
FTDAR setting
FTDAR setting + 16
FTDAR setting + 32
FTDAR setting + 4
RAMEND (H'FFC000)