Fujitsu F2MC-16LX Hardware Manual page 384

CHAPTER 23 1M-BIT FLASH MEMORY
;////////////////////////////////////////////////////////////
;FLASH write deletion program (SA4)
;////////////////////////////////////////////////////////////
RAMPRG
;
;
;
;
WAIT1
;
;////////////////////////////////////////////////
; Writing(SA0)
;////////////////////////////////////////////////
WRITE
;
;
;
;
;
;
;
NTOW
368
CSEG ABS=0FFH
ORG 0BC00H
////////////////////////////////////////////
Initialization
////////////////////////////////////////////
MOVW RW0,#0500H
MOVW RW2,#0000H
MOV A,#00H
MOV DTB,A
MOV A,#0FEH
MOV ADB,A
MOV PDR3,#00H
MOV DDR3,#00H
BBC PDR3:0,WAIT1
MOV A,PDR1
MOVW @RW0+00,A
MOV FMCS,#20H
MOVW ADB:COMADR1,#00AAH
MOVW ADB:COMADR2,#0055H
MOVW ADB:COMADR1,#00A0H
MOVW A,@RW0+00
MOVW @RW2+00,A
////////////////////////////////////////////////////////////
Error when the time limit excess check flag is set and the
toggle operation is ongoing
////////////////////////////////////////////////////////////
MOVW A,@RW2+00
AND A,#20H
BZ NTOW
MOVW A,@RW2+00
MOVW A,@RW2+00
XORW A
AND A,#40H
BNZ ERROR
///////////////////////////////////////
Write end check (FMCS-RDY)
///////////////////////////////////////
MOVW A,FMCS
AND A,#10H
;RW0: RAM space for input data
;acquisition
;RW2: Flash memory writing address
;
;DTB change
;@RW0 bank specification
;ADB change 1
;Specification of the bank for the
;write mode specification address
;Switch initialization
;PDR3:0 Start of writing with Hi
;Allocation of PDR1 data in
;the RAM
;Write mode setting
;Flash write command 1
;Flash write command 2
;Flash write command 3
;
;Writing of input data (RW0)
;into the flash memory (RW2)
;Wait time check
;DQ5 time limit check
;Time limit over
;AH
;AL
;XOR of AH and AL (1 if the
;value is different)
;Is the DQ6 toggle bit
;different?
;If it is different, go to
;ERROR.
;Extraction of the FMCS RDY
00:0500 to
FD:0000 to