M58WR064FB データシートの表示（PDF） - STMicroelectronics

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M58WR064FB

64 Mbit (4Mb x16, Multiple Bank, Burst) 1.8V Supply Flash Memory

STMicroelectronics 

M58WR064FT, M58WR064FB

Quadruple Enhanced Factory Program Pseudo Code

quad_efp_command(addressFlow,dataFlow,n)

/* n is the number of pages to be programmed.*/

{

/* Setup phase */

writeToFlash(addressFlow[0],0x75);

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

/*Data Load Phase*/

ror*/

/*First Data*/

writeToFlash(addressFlow[i],dataFlow[i,0]);

/*at the first data of the first page, Quad-EFP may be aborted*/

if (First_Page) {

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 er-

error_handler();

}

}

/*2nd data*/

writeToFlash(addressFlow[i],dataFlow[i,1]);

/*3rd data*/

writeToFlash(addressFlow[i],dataFlow[i,2]);

/*4th data*/

writeToFlash(addressFlow[i],dataFlow[i,3]);

/* Program&Verify Phase */

do{

status_register=readFlash(any_address);

/* E or G must be toggled*/

}while (status_register.SR0==1)

}

/* Exit Phase */

writeToFlash(another_block_address,FFFFh);

/* status register polling */

do{

status_register=readFlash(any_address);

/* E or G must be toggled */

} while (status_register.SR7==0);

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

error_handler();

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

error_handler();

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

error_handler();

}

}

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