UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 177

• 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

An example of a program when the command execution time (from write to internal verify) should be minimized in
self programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
ModeOnLoop:
FlashWrite:
FlashWriteLoop:
MOV
MOV
DI
MOV
MOV
MOV
MOV
MOV
NOP
HALT
BT PFS.0,$ModeOnLoop
MOVW
MOVW
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
CMP
BNZ
INCW
MOVW
CMPW
BNC
MK0,#11111111B
FLCMD,#00H
PFS,#00H
PFCMD,#0A5H
FLPMC,#01H
FLPMC,#0FEH
FLPMC,#01H
HL,#DataAdrTop
DE,#WriteAdr
FLCMD,#05H
A,D
FLAPH,A
A,E
FLAPL,A
A,[HL]
FLW,A
WDTE,#0ACH
A,PFS
A,#00H
$StatusError
HL
AX,HL
AX,#DataAdrBtm
$FlashVerify
Preliminary User’s Manual U18681EJ1V0UD
; Masks all interrupts
; Clears FLCMD register
; 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 with FLPMC register control
; (sets value)
; Checks completion of write to specific registers
; Repeats the same processing when an error occurs.
; Sets address at which data to be written is located
; Sets address at which data is to be written
; Sets flash control command (byte write)
; Sets address at which data is to be written
; Sets address at which data is to be written
; Sets data to be written
; Clears & restarts WDT
; Self programming is started
; Checks write error
; Performs abnormal termination processing when an error
; occurs.
; address at which data to be written is located + 1
; Performs internal verify processing
; if write of all data is completed
CHAPTER 14 FLASH MEMORY
1 MHz
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