st10f273m STMicroelectronics, st10f273m Datasheet - Page 46

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

Internal Flash memory
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Example 3: Disable in a permanent way Access and Debug Protection.
Example 4: Enable again in a permanent way Access and Debug Protection, after having
disabled them.
Disable and re-enable of Access and Debug Protection in a permanent way (as shown by
examples 3 and 4) can be done for a maximum of 16 times.
FARL
FARH
FDR0L
FCR0H
FCR0H
FCR0H
FARL
FARH
FDR0L
FCR0H
FCR0H|= 0x0100; /*Set SPR in FCR0H*/
FARL = 0xDFBC;
FARH
FDR0H = 0xFFFE; /*Load Data in FDR0H to clear PEN0*/
FCR0H |= 0x8000;
|= 0x8000;
= 0xDFB8;
= 0x000E;
= 0xFFFC;
|= 0x0100;
|= 0x0100;
|= 0x8000;
= 0xDFBC;
= 0x000E;
= 0xFFFE;
= 0x000E;
/*Operation start*/
/*Load Add register FNVAPR1H in FARL*/
/*Load Add of register FNVAPR0 in FARL*/
/*Load Add of register FNVAPR0 in FARH*/
/*Load Data in FDR0L*/
/*Operation start*/
/*Set SPR in FCR0H*/
/*Set SPR in FCR0H*/
/*Load Add of register FNVAPR1L in FARL*/
/*Load Add of register FNVAPR1L in FARH*/
/*Load Data in FDR0L for clearing PDS0*/
/*Operation start*/
/*Load Add register FNVAPR1H in FARH*/
ST10F273M