參數(shù)資料
型號(hào): M30L0T8000B0ZAQE
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 16M X 16 FLASH 1.8V PROM, 85 ns, PBGA88
封裝: 8 X 10 MM, 0.80 MM PITCH, LEAD FREE, BGA-88
文件頁數(shù): 33/103頁
文件大小: 794K
代理商: M30L0T8000B0ZAQE
M30L0T8000T0, M30L0T8000B0
Status Register
35/103
5.6
Program Suspend Status Bit (SR2)
The Program Suspend Status bit indicates that a program operation has been suspended in
the addressed block. The Program Suspend Status bit should only be considered valid
when the Program/Erase Controller Status bit is High (Program/Erase Controller inactive).
When the Program Suspend Status bit is High (set to ‘1’), a Program/Erase Suspend
command has been issued and the memory is waiting for a Program/Erase Resume
command.
SR2 is set within the Program Suspend Latency time of the Program/Erase Suspend
command being issued therefore the memory may still complete the operation rather than
entering the Suspend mode.
When a Program/Erase Resume command is issued the Program Suspend Status bit
returns Low.
5.7
Block Protection Status Bit (SR1)
The Block Protection Status bit is used to identify if a Program or Block Erase operation has
tried to modify the contents of a locked or locked-down block.
When the Block Protection Status bit is High (set to ‘1’), a program or erase operation has
been attempted on a locked or locked-down block.
Once set High, the Block Protection Status bit must be set Low by a Clear Status Register
command or a hardware reset before a new program or erase command is issued,
otherwise the new command will appear to fail.
5.8
Bank Write/Multiple Word Program Status Bit (SR0)
The Bank Write Status bit indicates whether the addressed bank is programming or erasing.
In Buffer Enhanced Factory Program mode the Multiple Word Program bit shows if the
device is ready to accept a new Word to be programmed to the memory array.
The Bank Write Status bit should only be considered valid when the Program/Erase
Controller Status SR7 is Low (set to ‘0’).
When both the Program/Erase Controller Status bit and the Bank Write Status bit are Low
(set to ‘0’), the addressed bank is executing a program or erase operation. When the
Program/Erase Controller Status bit is Low (set to ‘0’) and the Bank Write Status bit is High
(set to ‘1’), a program or erase operation is being executed in a bank other than the one
being addressed.
In Buffer Enhanced Factory Program mode if Multiple Word Program Status bit is Low (set to
‘0’), the device is ready for the next Word, if the Multiple Word Program Status bit is High
(set to ‘1’) the device is not ready for the next Word.
For further details on how to use the Status Register, see the Flowcharts and Pseudo codes
provided in Appendix C.
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