M58LT256JSB8ZA6 STMICROELECTRONICS [STMicroelectronics], M58LT256JSB8ZA6 Datasheet - Page 92

• Manufacturer Part Number: M58LT256JSB8ZA6
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Flowcharts and pseudocodes
Figure 24. Erase Suspend & Resume flowchart and pseudocode
1. The Read Status Register command (Write 70h) can be issued just before or just after the Erase Resume command.
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Read data from another block
Block Protect/Unprotect
Erase Continues with
Bank in Read Status
Register Mode
Read Status
Write 70h
Write D0h
Write B0h
Write 70h
Write FFh
Register
Program
SR7 = 1
SR6 = 1
Start
or
or
YES
YES
(1)
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 */
{ writeToFlash (bank_address, 0xFF) ;
{ writeToFlash (bank_address, 0xFF) ;
} while (status_register.SR7== 0) ;
}
}
status_register=readFlash (bank_address) ;
/* E or G must be toggled*/
read_data ( ) ;
/*The device returns to Read Array
(as if program/erase suspend was not issued).*/
read_program_data ( );
/*read or program data from another block*/
writeToFlash (bank_address, 0xD0) ;
/*write 0xD0 to resume erase*/
writeToFlash (bank_address, 0x70) ;
/*read status register to check if erase has completed */
M58LT256JST, M58LT256JSB
AI12897b