R01UH0823EJ0100 Rev.1.00
Page 1697 of 1823
Jul 31, 2019
RX23W Group
50. Flash Memory (FLASH)
Figure 50.19
Procedure to Issue the Blank Check Command for the E2 DataFlash
Set blank check start address
in registers FSARH and FSARL
Set blank check end address
in registers FEARH and FEARL
FCR register = 83h
FSTATR1.FRDY flag = 1?
No
Yes
FCR register = 00h
FSTATR1.FRDY flag = 0?
No
Yes
FSTATR0.ILGLERR flag = 1 or
FSTATR0.BCERR flag = 1?
Yes
No
FRESETR.FRESET bit = 1
FRESETR.FRESET bit = 0
End in E2 DataFlash P/E mode
Sequencer
initialization
FASR.EXS bit = 0
Start in E2 DataFlash P/E mode