upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 253

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

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
DI
MOV
MOV
MOV
MOV
MOV
MOV
CMP
BNZ
MOVW
MOVW
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
CMP
BNZ
INCW
MOVW
CMPW
BNC
MK0,#11111111B
PFS,#00H
PFCMD,#0A5H
FLPMC,#01H
FLPMC,#0FEH
FLPMC,#01H
A,PFS
A,#00H
$ModeOnLoop
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
; Masks all interrupts
; 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 16 FLASH MEMORY
User’s Manual U16994EJ3V0UD
253