SH7014 datasheet(556/754 Pages) RENESAS

556 / 754 page

18. 128 kB Flash Memory (F-ZTAT)

Rev.5.00 Sep. 27, 2007 Page 522 of 716

REJ09B0398-0500

EWait_4 SUBC

R2,R3

;

Wait 10

μs

EWait_4

;

MOV.L

#Wait10u,R3

AND.B

#ESUCLEAR,@(R0,GBR) ;

Clear ESU

EWait_5 SUBC

R2,R3

;

Wait 10

μs

EWait_5

;

MOV.L

#WDT_TCSR,R1

;

Disable WDT

MOV.W

#H'A55F,R3

MOV.W

R3,@R1

;

MOV.L

#Wait20u,R3

OR.B

#EVSET,@(R0,GBR)

;

Set EV

EWait_6 SUBC

R2,R3

;

Wait 20

μs

EWait_6

;

MOV.L

@R5,R6

;

Erase memory block start address -> R6

BlockVerify_1

.EQU

;

Erase-verify

MOV.L

#H'FFFFFFFF,R8

MOV.L

R8,@R6

;

H'FF dummy write

MOV.L

#Wait2u,R3

EWait_7 SUBC

R2,R3

EWait_7

;

MOV.L

@R6+,R1

;

Read verify data

CMP/EQ

R8,R1

BlockVerify_NG

MOV.L

@(8,R5),R7

CMP/EQ

R6,R7

;

Check for last address of memory block

BlockVerify_1

MOV.L

#Wait5u,R3

AND.B

#EVCLEAR,@(R0,GBR)

;

Clear EV

EWait_8 SUBC

R2,R3

;

Wait 5

μs

EWait_8

;

MOV.L

#OK,R7

;

R7 <- OK (return value)

BRA

FlashErase_end

;

Verify OK

SH7014 Datasheet(PDF) 556 Page - Renesas Technology Corp

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