參數(shù)資料
型號: 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): 32/103頁
文件大小: 794K
代理商: M30L0T8000B0ZAQE
Status Register
M30L0T8000T0, M30L0T8000B0
5.3
Erase Status Bit (SR5)
The Erase Status bit is used to identify if there was an error during a block or bank erase
operation. When the Erase Status bit is High (set to ‘1’), the Program/Erase Controller has
applied the maximum number of pulses to the block or bank and still failed to verify that it
has erased correctly.
The Erase Status bit should be read once the Program/Erase Controller Status bit is High
(Program/Erase Controller inactive).
Once set High, the Erase Status bit must be set Low by a Clear Status Register command
or a hardware reset before a new erase command is issued, otherwise the new command
will appear to fail.
5.4
Program Status Bit (SR4)
The Program Status bit is used to identify if there was an error during a program operation.
The Program Status bit should be read once the Program/Erase Controller Status bit is High
(Program/Erase Controller inactive).
When the Program Status bit is High (set to ‘1’), the Program/Erase Controller has applied
the maximum number of pulses to the Word and still failed to verify that it has programmed
correctly.
Attempting to program a '1' to an already programmed bit while VPP = VPPH will also set the
Program Status bit High. If VPP is different from VPPH, SR4 remains Low (set to '0') and the
attempt is not shown.
Once set High, the Program Status bit must be set Low by a Clear Status Register
command or a hardware reset before a new program command is issued, otherwise the new
command will appear to fail.
5.5
VPP Status Bit (SR3)
The VPP Status bit is used to identify an invalid voltage on the VPP pin during program and
erase operations. The VPP pin is only sampled at the beginning of a program or erase
operation. Program and erase operations are not guaranteed if VPP becomes invalid during
an operation.
When the VPP Status bit is Low (set to ‘0’), the voltage on the VPP pin was sampled at a valid
voltage.
when the VPP Status bit is High (set to ‘1’), the VPP pin has a voltage that is below the VPP
Lockout Voltage, VPPLK, the memory is protected and program and erase operations cannot
be performed.
Once set High, the VPP 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.
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