Holtek HT67F2350 Manual page 66

Note: When the FWT or FRD bit is set to 1, the MCU is stopped.
Rev. 1.60
Advanced A/D Flash MCU with LCD & EEPROM
Write
Flash Memory
Flash Memory
Write Function
Enable Procedure
Set Page Erase address: FARH/FARL
Set FMOD [2:0]=001 & FWT=1
Select "Page Erase mode"
& Initiate write operation
No
FWT=0 ?
Yes
Set FMOD [2:0]=000
Select "Write Flash Mode"
Set Write starting address: FARH/FARL
Write data to data register: FD0L/FD0H
No
Page data
Write finish
Yes
Set FWT=1
No
FWT=0 ?
Yes
Write Finish ?
Yes
Clear CFWEN=0
END
Write Flash Memory Procedure
66
HT67F2350/HT67F2360
HT67F2370/HT67F2390
No
May 16, 2019