upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 250

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

250
An example of a program when the command execution time (from erasure to black check) should be minimized in
self programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
ModeOnLoop:
FlashBlockErase:
FlashBlockBlankCheck:
MOV
DI
MOV
MOV
MOV
MOV
MOV
MOV
CMP
BNZ
MOV
MOV
MOV
MOV
MOV
MOV
HALT
MOV
CMP
BNZ
MOV
MOV
MOV
MOV
MK0,#11111111B
PFS,#00H
PFCMD,#0A5H
FLPMC,#01H
FLPMC,#0FEH
FLPMC,#01H
A,PFS
A,#00H
$ModeOnLoop
FLCMD,#03H
FLAPH,#07H
FLAPL,#00H
FLAPHC,#07H
FLAPLC,#00H
WDTE,#0ACH
A,PFS
A,#00H
$StatusError
FLCMD,#04H
FLAPH,#07H
FLAPL,#00H
FLAPHC,#07H
; 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 flash control command (block erase)
; Sets number of block to be erased (block 7 is specified
; here)
; Fixes FLAPL to “00H”
; Sets erase block compare number (same value as that of
; FLAPH)
; Fixes FLAPLC to “00H”
; Clears & restarts WDT
; Self programming is started
; Checks erase error
; Performs abnormal termination processing when an error
; occurs.
; Sets flash control command (block blank check)
; Sets number of block for blank check (block 7 is specified
; here)
; Fixes FLAPL to “00H”
; Sets blank check block compare number (same value as of
; FLAPH)
CHAPTER 16 FLASH MEMORY
User’s Manual U16994EJ3V0UD