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參數(shù)資料
| 型號： | AmMCL002AWP |
| 廠商： | Advanced Micro Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:6; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-6 RoHS Compliant: No |
| 中文描述： | 2或4兆字節(jié)3.0伏，只有Flash微型卡 |
| 文件頁數(shù)： | 19/36頁 |
| 文件大?。?/td> | 172K |
| 代理商： | AMMCL002AWP |
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AmMCL00XA
19
P R E L I M I NA R Y
able for read (note that in the Erase Suspend mode, the
Reset/Read command is not required for read opera-
tions and is ignored) or program operations in sectors
not being erased. Any other command written during
the Erase Suspend mode will be ignored, except for the
Erase Resume command. Writing the Erase Resume
command resumes the sector erase operation. The ad-
dresses are “don’t cares” when writing the Erase Sus-
pend or Erase Resume command.
When the Erase Suspend command is written during a
Sector Erase operation, the chip will take between 0.1
μ
s and 20
μ
s to actually suspend the operation and go
into erase suspended read mode (pseudo-read mode),
at which time the user can read or program from a sec-
tor that is
not
erase suspended. Reading data in this
mode is the same as reading from the standard read
mode, except that the data must be read from sectors
that have not been erase suspended.
Successively reading from the erase-suspended sec-
tor while the device is in the erase-suspend-read mode
will cause D2 to toggle. Polling D2 on successive reads
from a given sector provides the system the ability to
determine if a sector is in Erase Suspend.
After entering the erase-suspend-read mode, the user
can program the device by writing the appropriate com-
mand sequence for Byte Program. This program mode
is known as the erase suspend-program mode. Again,
programming in this mode is the same as programming
in the regular Byte Program mode, except that the data
must be programmed to sectors that are not erase sus-
pended. Successively reading from the erase sus-
pended sector while the device is in the erase
suspend-program mode will cause D2 to toggle. Com-
pletion of the erase suspend operation can be deter-
mined two ways:
I
Checking the status of the toggle bit D2
I
Checking the status of the RY/BY# pin
To resume the operation of Sector Erase, the Resume
command (30H) should be written. Any further writes of
the Resume command at this point will be ignored.
However, another Erase Suspend command can be
written after the device has resumed sector erase op-
erations.
Write Operation Status
Table 11 shows the status bit states for device program
and erase operations.
Data Polling—D7 (D15 on Odd Byte)
The Miniature card features DATA Polling as a method
to indicate to the host system that the embedded algo-
rithms are in progress or completed.
During the Embedded Program Algorithm, an attempt
to read the device will produce the compliment of the
data last written to D7. Upon completion of the Embed-
ded Program Algorithm, an attempt to read the device
will produce the true data last written to D7. Note that
just at the instant when D7 switches to true data, the
other bits, D6–D0, may not yet be true data. However,
they will all be true data on the next read from the de-
vice.
Please note that Data Polling (D7) may give an
inaccurate result when an attempt is made to write
to a protected sector.
During an Embedded Erase Al-
gorithm, an attempt to read the device will produce a ‘0’
at the D7 output. Upon completion of the Embedded
Erase
Algorithm,
an
the device will produce a ‘1’ at D7.
attempt
to
read
Note:
D7 is rechecked even if D5 = 1 because D7 may
change simultaneously with D5.
Figure 6.
Data Polling Algorithm
START
DQ7 = Data
Yes
No
No
DQ5 = 1
No
Yes
DQ7 = Data
Yes
FAIL
PASS
21138E-7
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMMCL002AWP-150 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 or 4 Megabyte 3.0 Volt-only Flash Miniature Card |
| AMMCL002AWP-150I | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 or 4 Megabyte 3.0 Volt-only Flash Miniature Card |
| AMMCL004ANP-150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8/x16 Flash EEPROM Module |
| AMMCL004AWP | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 or 4 Megabyte 3.0 Volt-only Flash Miniature Card |
| AMMCL004AWP-150 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 or 4 Megabyte 3.0 Volt-only Flash Miniature Card |
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