Section 24 ROM
Rev. 3.00 Jan 25, 2006 page 721 of 872
REJ09B0286-0300
<Flash memory>
<This LSI>
<RAM>
<Host>
Programming/
erase control program
SCI
Boot program
New
application program
<Flash memory>
<This LSI>
<RAM>
<Host>
SCI
New
application program
<Flash memory>
<This LSI>
<RAM>
<Host>
SCI
Flash memory
erase
Boot program
New
application program
<Flash memory>
<This LSI>
Program execution state
<RAM>
<Host>
SCI
Boot program
Programming/
erase control program
Boot program
Transfer program
Application
program
(old version)
Application
program
(old version)
New
application
program
Transfer program
Transfer program
Programming/
erase control program
Programming/
erase control program
Transfer program
1. Initial state
(1) The program that will transfer the programming/erase
control program from flash memory to on-chip RAM
should be written into the flash memory by the user
beforehand.
(2) The programming/erase control program should be
prepared in the host or in the flash memory.
2. Programming/erase control program transfer
The transfer program in the flash memory is executed and
the programming/erase control program is transferred to RAM.
3. Flash memory initialization
The programming/erase program in RAM is executed, and
the flash memory is initialized (to H'FF). Erasing can be
performed in block units, but not in byte units.
4. Writing new application program
Next, the new application program in the host is written into
the erased flash memory blocks. Do not write to unerased
blocks.
Figure 24.4 User Program Mode (Example)
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...