M58PR512LE datasheet(110/119 Pages) STMICROELECTRONICS

110 / 119 page

Flowcharts and pseudocodes

M58PR256LE, M58PR512LE, M58PR001LE

110/119

Figure 28.

Buffer enhanced factory program flowchart and pseudocode

When programming a program region configured in Control Program mode, ’B’ half segment addresses (A3 = 1) should not

contain ’0’ values.

BA1 = block containing start address WA1.

Write 80h to

Address WA1

AI10519b

Start

Write D0h to

Address WA1

Write FFFFh to

Address = NOT BA1 (2)

Read Status

SR7 = 0

SR0 = 0

YES

Read Status Register

SR3 and SR1for errors

Exit

Write PDX (1)

Address WA1

Increment Count

X = X + 1

Initialize count

X = 0

X = 512

YES

Read Status

Last data?

YES

Read Status

SR7 = 1

YES

Full Status Register

Check

End

YES

SR4 = 1

SETUP PHASE

PROGRAM AND

VERIFY PHASE

EXIT PHASE

Buffer_Enhanced_Factory_Program_Command

(start_address, DataFlow[]) {

writeToFlash (start_address, 0x80) ;

writeToFlash (start_address, 0xD0) ;

do {

status_register = readFlash (start_address);

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

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

if (status_register.SR1==1) error_handler ( ) ;/* Locked Block */

}

while (status_register.SR7==1)

x=0; /* initialize count */

do {

writeToFlash (start_address, DataFlow[x]);

x++;

}while (x<512)

do {

status_register = readFlash (start_address);

}while (status_register.SR0==1)

} while (not last data)

writeToFlash (another_block_address, FFFFh)

do {

status_register = readFlash (start_address)

}while (status_register.SR7==0)

full_status_register_check();

}

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