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(yè)數(shù): 17/103頁(yè)
文件大?。?/td> 794K
代理商: M30L0T8000B0ZAQE
Command interface
M30L0T8000T0, M30L0T8000B0
4.5
Clear Status Register Command
The Clear Status Register command can be used to reset (set to ‘0’) all error bits (SR1, 3, 4
and 5) in the Status Register.
One Bus Write cycle is required to issue the Clear Status Register command. The Clear
Status Register command does not affect the read mode of the bank.
The error bits in the Status Register do not automatically return to ‘0’ when a new command
is issued. The error bits in the Status Register should be cleared before attempting a new
program or erase command.
4.6
Block Erase Command
The Block Erase command is used to erase a block. It sets all the bits within the selected
block to ’1’. All previous data in the block is lost.
If the block is protected then the Block Erase operation will abort, the data in the block will
not be changed and the Status Register will output the error.
Two Bus Write cycles are required to issue the command.
The first bus cycle sets up the Block Erase command.
The second latches the block address and starts the Program/Erase Controller.
If the second bus cycle is not the Block Erase Confirm code, Status Register bits SR4 and
SR5 are set and the command is aborted.
Once the command is issued the bank enters Read Status Register mode and any read
operation within the addressed bank will output the contents of the Status Register. A Read
Array command is required to return the bank to Read Array mode.
During Block Erase operations the bank containing the block being erased will only accept
the Read Array, Read Status Register, Read Electronic Signature, Read CFI Query and the
Program/Erase Suspend command, all other commands will be ignored.
The Block Erase operation aborts if Reset, RP, goes to VIL. As data integrity cannot be
guaranteed when the Block Erase operation is aborted, the block must be erased again.
Refer to Dual Operations section for detailed information about simultaneous operations
allowed in banks not being erased.
flowchart for using the Block Erase command.
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