m58wr032et STMicroelectronics, m58wr032et Datasheet - Page 69

• Manufacturer Part Number: m58wr032et
• Description: 32 Mbit 2mb X 16, Multiple Bank, Burst 1.8v Supply Flash Memory
• Manufacturer: STMicroelectronics

Figure 26. Erase Suspend & Resume Flowchart and Pseudo Code
Block Protect/Unprotect/Lock
Program/Protection Program
Erase Continues
Read data from
another block
Read Status
Write D0h
Write B0h
Write 70h
Write FFh
Register
SR7 = 1
SR6 = 1
Start
or
or
YES
YES
NO
NO
Erase Complete
Read Data
Write FFh
erase_suspend_command ( ) {
if (status_register.SR6==0) /*erase completed */
else
}
do {
writeToFlash (bank_address, 0xB0) ;
writeToFlash (bank_address, 0x70) ;
/* read status register to check if
erase has already completed */
} while (status_register.SR7== 0) ;
{ writeToFlash (bank_address, 0xFF) ;
{ writeToFlash (bank_address, 0xFF) ;
}
}
status_register=readFlash (bank_address) ;
/* E or G must be toggled*/
read_data ( ) ;
/*read data from another block*/
/*The device returns to Read Array
(as if program/erase suspend was not issued).*/
read_program_data ( );
/*read or program data from another address*/
writeToFlash (bank_address, 0xD0) ;
/*write 0xD0 to resume erase*/
M58WR032ET, M58WR032EB
AI06175
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