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M58WR064T Datasheet(PDF) 70 Page - STMicroelectronics |
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M58WR064T Datasheet(HTML) 70 Page - STMicroelectronics |
70 / 81 page ![]() M58WR064T, M58WR064B 70/81 Figure 23. Erase Suspend & Resume Flowchart and Pseudo Code Write 70h AI06175 Read Status Register YES NO SR7 = 1 YES NO SR6 = 1 Erase Continues Write D0h Read data from another block or Program/Protection Program or Block Protect/Unprotect/Lock Start Write B0h Erase Complete Write FFh Read Data 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*/ } } |
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