M58LT128GS datasheet(87/98 Pages) STMICROELECTRONICS

87 / 98 page

M58LT128GST, M58LT128GSB

13 Part Numbering

87/98

Figure 23. Erase Suspend & Resume Flowchart and Pseudo Code

The Read Status Register command (Write 70h) can be issued just before or just after the Erase Resume command.

Write 70h

AI10116

Read Status

YES

SR7 = 1

YES

SR6 = 1

Erase Continues with

Bank in Read Status

Write D0h

Read data from

another block

Start

Write B0h

Erase Complete

Write FFh

Read Status Register

Write FFh

erase_suspend_command ( ) {

writeToFlash (bank_address, 0xB0) ;

writeToFlash (bank_address, 0x70) ;

/* read status register to check if

erase has already completed */

do {

status_register=readFlash (bank_address) ;

/* E or G must be toggled*/

} while (status_register.SR7== 0) ;

if (status_register.SR6==0) /*erase completed */

{ writeToFlash (bank_address, 0xFF) ;

read_data ( ) ;

/*read data from another block*/

/*The device returns to Read Array

(as if program/erase suspend was not issued).*/

}

else

{ writeToFlash (bank_address, 0xFF) ;

read_program_data ( );

/*read or program data from another address*/

writeToFlash (bank_address, 0xD0) ;

/*write 0xD0 to resume erase*/

writeToFlash (bank_address, 0x70) ;

/*read status register to check if erase has completed */

}

Write 70h(1)

M58LT128GS 데이터시트(PDF) 87 Page - STMicroelectronics

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