786
22.2.4
Flash Memory Emulation in RAM
Emulation should be performed in user mode or user program mode. When the emulation block
set in RAMER is accessed while the emulation function is being executed, data written in the
overlap RAM is read.
Application program
Execution state
Flash memory
Emulation block
RAM
SCI
Overlap RAM
(emulation is performed
on data written in RAM)
Figure 22-3 Reading Overlap RAM Data in User Mode or User Program Mode
When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and
writes should actually be performed to the flash memory.
When the programming control program is transferred to RAM, ensure that the transfer
destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to
be rewritten.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...