參數(shù)資料
型號(hào)： KFG5616Q1
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： OneNAND256
中文描述： OneNAND256
文件頁數(shù)： 56/93頁
文件大?。?/td> 1223K
代理商： KFG5616Q1
OneNAND256
FLASH MEMORY
56
8.9.2 Erase Suspend / Resume
Erase Suspend command interrupts Block Erase and Multi Block Erase to load or program data in a block that is not being erased.
When Erase Suspend command is written during Block Erase and Multi Block Erase operation, the device requires a maximum of
500us to suspend erase operation. After the erase operation has been suspended, the device is available for loading or programming
data in a block that is not being erased. For the erase suspend period, Block Erase, Multi Block Erase and Erase Suspend com-
mands are not accepted.
When Erase Resume command is executed, Block Erase and Multi Block Erase operation will resume. The Erase Resume operation
does not actually resume the erase, but starts it again from the beginning. When Erase Suspend and Erase Resume command is
executed, the addresses are in Don’t Care state.
Figure 19. Erase Suspend and Resume operation flow-chart
2) If OTP access mode exit happens with Reset operation during Erase Suspend mode,
Reset operation could hurt the erase operation. So if a user wants to exit from OTP access mode
without the erase operation stop, Reset NAND Flash Core command should be used.
Start
Write ’Erase Suspend
Command’
Add: F220h DQ=00B0h
Wait for INT register
low to high transition for 500us
Add: F241h DQ=[15]=INT
Write 0 to interrupt register
Add: F241h DQ=0000h
Write ’Erase Resume
Command’
Add: F220h DQ=0030h
Wait for INT register
low to high transition
Add: F241h DQ=[15]=INT
Write 0 to interrupt register
Add: F241h DQ=0000h
Another Operation *
* Another Operation ; Load, Program
Copy-back Program, OTP Access
2)
,
Hot Reset, Flash Reset, CMD Reset,
Multi Block Erase Verify, Lock,
Lock-tight, Unlock
Check Controller Status Register
in case of Block Erase
Do Multi Block Erase Verify Read
in case of Multi Block Erase
Note 1) Erase Suspend command input is prohibited during Multi Block Erase address latch period.
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