UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 627

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

The operating conditions of the FPRERR flag are as follows.
<Setting conditions>
• If PFCMD is written when the store instruction operation recently performed on a peripheral register is not to
• 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
• 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
<Reset conditions>
• If 0 is written to the FPRERR flag
• If reset signal is generated
<Example of description in specific sequence>
To write 05H to FLPMC
write a specific value (A5H) to PFCMD
after <2>
after <3>
Remark The numbers in angle brackets above correspond to the those in (2) Flash protect command
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 24 FLASH MEMORY
User’s Manual U17554EJ4V0UD
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