MBM29F200TC Fujitsu Media Devices Limited, MBM29F200TC Datasheet - Page 17

• Manufacturer Part Number: MBM29F200TC
• Description: 2M (256K X 8/128K X 16) BIT
• Manufacturer: Fujitsu Media Devices Limited

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Write Operation Status
Notes: 1. Performing successive read operations from any address will cause DQ
In
Progress
Exceeded
Time
Limits
When the Erase Suspend command is written during the Sector Erase operation, the device will take a maximum
of 20 s to suspend the erase operation. When the device has entered the erase-suspended mode, the RY/BY
output pin and the DQ
erasing sector for reading DQ
of the Erase Suspend command are ignored.
When the erase operation has been suspended, the device defaults to the erase-suspend-read mode. 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 sector while the
device is in the erase-suspend-read mode will cause DQ
After entering the erase-suspend-read mode, the user can program the device by writing the appropriate
command sequence for 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 Program mode except that the data must
be programmed to sectors that are not erase-suspended. Successively reading from the erase-suspended sector
while the device is in the erase-suspend-program mode will cause DQ
program operation is detected by the RY/BY output pin, Data polling of DQ
is the same as the regular Program operation. Note that DQ
can be read from any address.
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. Another Erase Suspend command can be written after the
chip has resumed erasing.
2. Reading the byte address being programmed while in the erase-suspend program mode will indicate
3. DQ
4. DQ
logic “1” at the DQ
toggle.
Embedded Program Algorithm
Embedded Erase Algorithm
Erase
Suspended
Mode
Embedded Program Algorithm
Embedded Erase Algorithm
Erase
Suspended
Mode
0
8
and DQ
to DQ
MBM29F200TC
15
1
are “DON’T CARES” because there is for
are reserve pins for future use. DQ
7
bit will be at logic “1”, and DQ
Erase Suspend Read (Erase Suspended
Sector)
Erase Suspend Read (Non-Erase
Suspended Sector)
Erase Suspend Program (Non-Erase
Suspended Sector)
Erase Suspend Program (Non-Erase
Suspended Sector)
2
bit. However, successive reads from the erase-suspended sector will cause DQ
Status
6
and DQ
Table 8
7
to determine if the erase operation has been suspended. Further writes
Hardware Sequence Flags
-55/-70/-90
6
will stop toggling. The user must use the address of the
4
2
to toggle. (See the section on DQ
is Fujitsu internal use only.
7
must be read from the program address while DQ
/MBM29F200BC
16 mode.
2
to toggle. The end of the erase-suspended
Data
DQ
DQ
DQ
DQ
DQ
0
1
0
7
7
7
7
7
7
, or by the Toggle Bit I (DQ
(Note 1)
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Data
DQ
6
1
to toggle.
6
Data
DQ
0
0
0
0
1
1
1
5
2
).
Data
DQ
0
1
0
0
0
1
0
-55/-70/-90
3
(Note 2)
6
Toggle
Toggle
) which
Data
DQ
N/A
N/A
1
1
1
2
2
to
6
17