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參數(shù)資料
| 型號(hào)： | GE28F640W30TD70 |
| 廠商： | INTEL CORP |
| 元件分類： | PROM |
| 英文描述： | 4M X 16 FLASH 1.8V PROM, 70 ns, PBGA56 |
| 封裝： | 0.75 MM PITCH, VFBGA-56 |
| 文件頁(yè)數(shù)： | 62/104頁(yè) |
| 文件大小： | 1443K |
| 代理商： | GE28F640W30TD70 |
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28F640W30, 28F320W30, 28F128W30
June 2005
Intel Wireless Flash Memory (W30)
Datasheet
60
Order Number: 290702, Revision: 011
10.5
Clear Status Register
The Clear Status Register command clears the status register and leaves all partition output states
unchanged. The WSM can set all status register bits and clear bits SR[7:6,2,0]. Because bits
SR[5,4,3,1] indicate various error conditions, they can be cleared only by the Clear Status Register
command. By allowing system software to reset these bits, several operations (such as
cumulatively programming several addresses or erasing multiple blocks in sequence) can be
performed before reading the status register to determine whether an error occurred.
If an error is detected, the Status Register must be cleared before beginning another command or
sequence. Flash device reset (RST# = VIL) also clears the status register. This command functions
independently of VPP.
Table 23.
Status Register Device WSM and Partition Write Status Description
DWS
(SR[7])
PWS
(SR[0])
Description
00
The addressed partition is performing a program/erase operation.
EFP: the flash device has finished programming or verifying data, or is ready for data.
01
A partition other than the one currently addressed is performing a program/erase operation.
EFP: the flash device is either programming or verifying data.
10
No program/erase operation is in progress in any partition. Erase and Program suspend bits (SR[6,2])
indicate whether other partitions are suspended.
EFP: the flash device has exited EFP mode.
11
Does not occur in standard program or erase modes.
EFP: this combination does not occur.
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