UPD78F9234MC-5A4-A Datasheet, PDF (322/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 19 FLASH MEMORY
<R>
Figure 19-27. Example of Operation When Interrupt-Disabled Time Should Be Minimized
(from Erasure to Blank Check)
Erasure to blank check
Figure 19-20
<1> to <5>
<1> Specify block erase command
Figure 19-18
<1> to <7>
<2> Shift to self programming
mode
Figure 19-20
<6> to <12>
Figure 19-19
<1> to <6>
<3> Execute block erase command
Abnormal
<3> Check execution result
Normal
<4> Shift to normal mode
Figure 19-21
<1> to <5>
<5> Specify block blank
check command
Figure 19-18
<1> to <7>
<6> Shift to self programming
mode
Figure 19-21
<6> to <11>
Figure 19-19
<1> to <6>
<7> Execute block blank
check command
<7> Check execution result Abnormal
(VCERR and WEPRERR flags)
Normal
<8> Shift to normal mode
Normal termination
Abnormal termination^Note
Note Perform processing to shift to normal mode in order to return to normal processing.
Remark <1> to <8> in Figure 19-27 correspond to <1> to <8> in 19.8.11 (1) (previous page).
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User’s Manual U17446EJ5V0UD