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M58PR256J датащи(PDF) 101 Page - STMicroelectronics

номер детали M58PR256J
подробное описание детали  256 Mbit or 512 Mbit (x16, Multiple Bank, Multilevel, Burst) 1.8 V supply Flash memories
PDF  114 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58PR256J датащи(HTML) 101 Page - STMicroelectronics

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 101 / 114 page
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M58PR256J, M58PR512J
Flowcharts and pseudo codes
101/114
Figure 24.
Erase Suspend & Resume flowchart and pseudo code
1.
The Read Status Register command (Write 70h) can be issued just before or just after the Erase Resume command.
Write 70h
AI10116c
Read Status
Register
YES
NO
SR7 = 1
YES
NO
SR6 = 1
Erase Continues with
Bank in Read Status
Register Mode
Write D0h
Read data from another block
or
Program
or
Block Lock/Unlock/Lock-Down
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 ( ) ;
/*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 block*/
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)



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