參數資料
型號: KFG5616Q1M
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: OneNAND256
中文描述: OneNAND256
文件頁數: 54/93頁
文件大?。?/td> 1223K
代理商: KFG5616Q1M
OneNAND256
FLASH MEMORY
54
8.9 Erase Operation
The device can be erased in block unit. To erase a block is to write 1
s into the desired memory block by executing the Internal Erase
Routine. In order to perform the Internal Erase Routine, command sequence is necessary. First, host sets the block address of the
memory location. Second, erase command initiates the internal erase routine. During the execution of the Routine, the host is not
required to provide further controls or timings.
During the Internal erase routine, commands except reset and erase suspend command written to the device will be ignored.
Note that a reset during a erase operation will cause data corruption at the corresponding location.
Figure 17. Erase operation flow-chart
Start
Write ’FBA’ of Flash
Add: F100h DQ=FBA
Write ’Erase’ Command
Add: F220h DQ=0094h
Wait for INT register
low to high transition
Add: F241h DQ=[15]=INT
Add: F240h DQ[10]=Error
Erase completed
DQ[10]=0
YES
Erase Error
NO
Read Controller
Status Register
Write 0 to interrupt register
Add: F241h DQ=0000h
: If erase operation results in an error, map out
*
the failing block.
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