M58CR064CZB データシートの表示（PDF） - STMicroelectronics

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M58CR064CZB

64 Mbit (4Mb x 16, Dual Bank, Burst) 1.8V Supply Flash Memory

STMicroelectronics 

M58CR064C, M58CR064D, M58CR064P, M58CR064Q

Figure 23. Program Suspend & Resume Flowchart and Pseudo Code

Start

Write B0h

Write 70h

Read Status

Register

program_suspend_command ( ) {

writeToFlash (any_address, 0xB0) ;

writeToFlash (bank_address, 0x70) ;

/* read status register to check if

program has already completed */

do {

status_register=readFlash (bank_address) ;

/* E or G must be toggled*/

NO

SR7 = 1

YES

NO

SR2 = 1

YES

Write FFh

Program Complete

} while (status_register.SR7== 0) ;

if (status_register.SR2==0) /*program 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).*/

Read data from

another address

Write D0h

Program Continues

Write FFh

Read Data

}

else

{ writeToFlash (bank_address, 0xFF) ;

read_data ( ); /*read data from another address*/

writeToFlash (any_address, 0xD0) ;

/*write 0xD0 to resume program*/

}

}

AI06173

61/70

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