UPD78F9234MC-5A4-A Datasheet, PDF (305/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 19 FLASH MEMORY
Figure 19-21. Example of Block Blank Check Operation in Self Programming Mode
Block blank check
<1> Set block blank check
command (FLCMD = 04H)
<2> Set no. of block for
blank check to FLAPH
<3> Set FLAPL to 00H
<4> Set the same value as
that of FLAPH to FLAPHC
<5> Set FLAPLC to 00H
<6> Clear PFS
<7> Clear & restart WDT counter
(WDTE = ACH)^Note
<8> Execute HALT instruction
<9> Check execution result
(VCERR and WEPRERR flags)
Normal
<11> Normal termination
Abnormal
<10> Abnormal termination
Note This setting is not required when the watchdog timer is not used.
Remark <1> to <11>in Figure 19-21 correspond to <1> to <11> in 19.8.7 (previous page).
User’s Manual U17446EJ5V0UD
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