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MC96F6432A
ABOV Semiconductor Co., Ltd.
15.1.11 Read Mode
The Reading program procedure in user program mode
1.
Load receive data from flash memory on MOVC instruction by indirectly addressing mode.
Program Tip
–
reading
MOV
A,#0
MOV
DPH,#0x7F
MOV
DPL,#0x40
;flash memory address
MOVC
A,@A+DPTR
;read data from flash memory
15.1.12 Code Write Protection Mode
The Code Write Protection program procedure in user program mode
1.
Set flash identification register (FIDR).
2.
Check the UserID for to prevent the invalid work
(Note).
3.
Set flash mode control register (FMCR).
NOTE)
Please refer to the chapter “Protection for Invalid Erase/Write”
Program Tip
–
Code Write Protection
MOV
FIDR,#0xA5
;Identification value
MOV
A,#ID_DATA_1 ;Check the UserID(written by user)
CJNE A,UserID1,No_WriteErase;This routine for UserID must be needed.
MOV
A,#ID_DATA_2
CJNE A,UserID2,No_WriteErase
MOV
FMCR,#0x04
;Start flash Code Write Protection mode
NOP
;Dummy instruction, This instruction must be needed.
NOP
;Dummy instruction, This instruction must be needed.
NOP
;Dummy instruction, This instruction must be needed.
No_WriteErase:
MOV
FIDR,#00H
MOV
UserID1,#00H
MOV
UserID2,#00H
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Summary of Contents for MC96F6432A
Page 16: ...16 MC96F6432A ABOV Semiconductor Co Ltd 4 Package Diagram Figure 4 1 48 Pin QFN Package ...
Page 17: ...17 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 2 44 Pin MQFP Package ...
Page 18: ...18 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 3 32 Pin LQFP Package ...
Page 19: ...19 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 4 32 Pin SOP Package ...
Page 20: ...20 MC96F6432A ABOV Semiconductor Co Ltd Figure 4 5 28 Pin SOP Package ...
