Section 17 Flash Memory
Rev. 3.00 Sep. 27, 2007 Page 610 of 758
REJ09B0243-0300
(1) On-Chip RAM Address Map when Programming/Erasing is Executed
Parts of the procedure program that are made by the user, like download request,
programming/erasing procedure, and decision of the result, must be executed in the on-chip
RAM. All of the on-chip program that is to be downloaded is in on-chip RAM. Note that on-
chip RAM must be controlled so that these parts do not overlap.
Figure 17.10 shows the program area to be downloaded.
System use area
(15 bytes)
RAMTOP (H'FFFFA000)
FTDAR setting
Programming/
erasing entry
DPFR
(Return value: 1 byte)
Area that can be
used by user
FTDAR s 16
<On-chip RAM>
Address
Initialization
process entry
FTDAR s 32
FTDAR s 3072
Initiali
programming program
or Initiali
erasing program
Area that can be
used by user
RAMEND (H'FFFFBFFF)
Area to be
downloaded
(Size: 3 kbytes)
Unusable area in
programming/erasing
processing period
Figure 17.10 RAM Map after Download
Summary of Contents for SH7124 R5F7124
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Page 36: ...Section 1 Overview Rev 3 00 Sep 27 2007 Page 16 of 758 REJ09B0243 0300 ...
Page 68: ...Section 2 CPU Rev 3 00 Sep 27 2007 Page 48 of 758 REJ09B0243 0300 ...
Page 108: ...Section 5 Exception Handling Rev 3 00 Sep 27 2007 Page 88 of 758 REJ09B0243 0300 ...
Page 166: ...Section 7 User Break Controller UBC Rev 3 00 Sep 27 2007 Page 146 of 758 REJ09B0243 0300 ...
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