M58WR064EB datasheet(74/82 Pages) STMICROELECTRONICS

74 / 82 page

M58WR064ET, M58WR064EB

74/82

Enhanced Factory Program Pseudo Code

efp_command(addressFlow,dataFlow,n)

/* n is the number of data to be programmed */

{

/* setup phase */

writeToFlash(addressFlow[0],0x30);

writeToFlash(addressFlow[0],0xD0);

status_register=readFlash(any_address);

if (status_register.SR7==1){

/*EFP aborted for an error*/

if (status_register.SR4==1) /*program error*/

error_handler();

if (status_register.SR3==1) /*VPP invalid error*/

error_handler();

if (status_register.SR1==1) /*program to protect block error*/

error_handler();

}

else{

/*Program Phase*/

do{

status_register=readFlash(any_address);

/* E or G must be toggled*/

} while (status_register.SR0==1)

/*Ready for first data*/

for (i=0; i++; i< n){

writeToFlash(addressFlow[i],dataFlow[i]);

/* status register polling*/

do{

status_register=readFlash(any_address);

/* E or G must be toggled*/

} while (status_register.SR0==1);

/* Ready for a new data */

}

writeToFlash(another_block_address,FFFFh);

/* Verify Phase */

for (i=0; i++; i< n){

writeToFlash(addressFlow[i],dataFlow[i]);

/* status register polling*/

do{

status_register=readFlash(any_address);

/* E or G must be toggled*/

} while (status_register.SR0==1);

/* Ready for a new data */

}

writeToFlash(another_block_address,FFFFh);

/* exit program phase */

/* Exit Phase */

/* status register polling */

do{

status_register=readFlash(any_address);

/* E or G must be toggled */

} while (status_register.SR7==0);

if (status_register.SR4==1) /*program failure error*/

error_handler();

if (status_register.SR3==1) /*VPP invalid error*/

error_handler();

if (status_register.SR1==1) /*program to protect block error*/

error_handler();

}

M58WR064EB 데이터시트(PDF) 74 Page - STMicroelectronics

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