UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 188

• Manufacturer Part Number: UPD78F9502MA-CAC-A
• Description: 8BIT MCU, 4K FLASH, 128B RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F9502MA-CAC-A

• Controller Family/series: UPD78F
• No. Of I/o's: 8
• Ram Memory Size: 128Byte
• Cpu Speed: 10MHz
• No. Of Timers: 2
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

188
ModeOnLoop:
;---------------------------------------------------------------------
; Processing to shift to normal mode
;---------------------------------------------------------------------
ModeOff:
;---------------------------------------------------------------------
;Data to be written
;---------------------------------------------------------------------
DataAdrTop:
DI
MOV
MOV
MOV
MOV
MOV
NOP
HALT
BT PFS.0,$ModeOnLoop
RET
MOV
MOV
MOV
MOV
MOV
MOV
BT PFS.0,$ModeOffLoop
MOV
EI
RET
DB
DB
DB
PFS,#00H
PFCMD,#0A5H
FLPMC,#01H
FLPMC,#0FEH
FLPMC,#01H
FLCMD,#00H
PFS,#00H
PFCMD,#0A5H
FLPMC,#00H
FLPMC,#0FFH
FLPMC,#00H
MK0,#INT_MK0
XXH
XXH
XXH
; Configure settings so that the CPU clock
; Clears flash status register
; PFCMD register control
; FLPMC register control (sets value)
; FLPMC register control (inverts set value)
; Sets self programming mode via FLPMC register control (sets
; value)
; Checks completion of write to specific registers
; Repeats the same processing when an error occurs.
; Clears FLCMD register
; Clears flash status register
; PFCMD register control
; FLPMC register control (sets value)
; FLPMC register control (inverts set value)
; Sets normal mode via FLPMC register control (sets value)
; Checks completion of write to specific registers
; Repeats the same processing when an error occurs.
; After the specific sequence is correctly executed, restore
; the CPU clock to its setting before the self programming
; Restores interrupt mask flag
Preliminary User’s Manual U18681EJ1V0UD
CHAPTER 14 FLASH MEMORY
1 MHz