Start-Up Area Information Program/Access Window Information Program - Renesas RX100 Series User Manual

RX13T Group
31.7.4.4

Start-Up Area Information Program/Access Window Information Program

Figure 31.17 shows the procedure to issue the start-up area information program command and access window
information program command.
When the sequencer has directly entered ROM/PE mode from E2 DataFlash access disabled mode, set the
DFLCTL.DFLEN bit to 1 at the beginning of the procedure.
Figure 31.17 Procedure to Issue the Start-Up Area Information Program Command/Access Window
Information Program Command
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
Start in ROM P/E mode
FASR.EXS bit = 1
Set programming data in registers
FWBH and FWBL
Write 81h or 82h to FEXCR register
FSTATR1.EXRDY flag = 1?
Yes
FEXCR register = 00h
FSTATR1.EXRDY flag = 0?
Yes
FSTATR0.EILGLERR flag = 1 or
FSTATR0.PRGERR flag = 1?
Yes
FRESETR.FRESET bit = 1
FRESETR.FRESET bit = 0
End in ROM P/E mode
No
No
No
Sequencer
initialization
31. Flash Memory (FLASH)
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