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參數(shù)資料
| 型號(hào)： | HN29V102414T-50H |
| 英文描述： | Flash Application Design Guidelines Others |
| 中文描述： | Flash應(yīng)用程序設(shè)計(jì)指南其他 |
| 文件頁數(shù)： | 38/46頁 |
| 文件大小： | 338K |
| 代理商： | HN29V102414T-50H |
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HN29V102414 Series
38
Function Description
Status Register:
The HN29V102414 outputs the operation status data as follows: I/O7 pin outputs a V
OL
to
indicate that the memory is in either erase or program operation. The level of I/O7 pin turns to a V
OH
when
the operation finishes. I/O5 and I/O4 pins output V
OL
s to indicate that the erase and program operations
complete in a finite time, respectively. If these pins output V
OH
s, it indicates that these operations have timed
out. If I/O6 pin outputs V
OH
, it indicates a possibility that can be corrected by ECC, choose data correction by
ECC or not by reading out the data. When these pins monitor, I/O7 pin must turn to a V
OH
. To execute other
erase and program operation, the status data must be cleared after a time out occurs. From I/O0 to I/O3 pins
are reserved for future use. The pins output V
OL
s and should be masked out during the status data read mode.
The function of the status register is summarized in the following table
I/O
Flag definition
Ready/
Busy
Definition
I/O7
V
OH
= Ready, V
OL
= Busy
When I/O7 outputs V
OH
, V
OH
= ECC available, V
OL
= ECC not available.
I/O6
Program/Erase ECC
check
I/O5
Erase check
V
OH
= Fail, V
OL
= Pass
V
OH
= Fail, V
OL
= Pass
Outputs a V
OL
and should be masked out during the status data poling mode.
I/O4
Program check
I/O3
Reserved
I/O2
Reserved
I/O1
Reserved
I/O0
Reserved
ECC Applicability
I/O7
I/O6
I/O5
I/O4
System data correction by ECC
V
OH
V
OH
V
OH
V
OH
V
OH
V
OL
V
OH
V
OL
V
OH
V
OH
V
OL
V
OL
V
OL
V
OL
V
OH
V
OH
Needed
Not needed. Sector replacement
Needed
Not needed. Sector replacement
This device needs to be corrected failure data by ECC on system or Spare sectors, by reading out again the
failure sector data when program/erase error occures.
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