upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 402

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

402
The operating conditions of the FPRERR flag are as follows.
<Setting conditions>
<Reset conditions>
<Example of description in specific sequence>
To write 05H to FLPMC
If PFCMD is written when the store instruction operation recently performed on a peripheral register is not to
write a specific value (A5H) to PFCMD
If the first store instruction operation after <1> is on a peripheral register other than FLPMC
If the first store instruction operation after <2> is on a peripheral register other than FLPMC
If a value other than the inverted value of the value to be set to FLPMC is written by the first store instruction
after <2>
If the first store instruction operation after <3> is on a peripheral register other than FLPMC
If a value other than the value to be set to FLPMC (value written in <2>) is written by the first store instruction
after <3>
Remark The numbers in angle brackets above correspond to the those in (2) Flash protect command
If 0 is written to the FPRERR flag
If RESET is input
MOV
MOV
MOV
MOV
PFCMD, #0A5H
FLPMC, #05H
FLPMC, #0FAH
FLPMC, #05H
register (PFCMD).
; Writes A5H to PFCMD.
; Writes 05H to FLPMC.
; Writes 0FAH (inverted value of 05H) to FLPMC.
; Writes 05H to FLPMC.
CHAPTER 23 FLASH MEMORY
User’s Manual U16961EJ4V0UD