MBM29PL12LM Fujitsu Media Devices, MBM29PL12LM Datasheet - Page 34

• Manufacturer Part Number: MBM29PL12LM
• Description: FLASH MEMORY 128 M (16M x 8/8M x 16) BIT
• Manufacturer: Fujitsu Media Devices

34
MBM29PL12LM
Write Operation Status
*1 : Successive reads from the erasing or erase-suspend sector will cause DQ
*2 : Reading from non-erase suspend sector address will indicate logic “1” at the DQ
*3 : DQ
*4 : The Data Polling algorithm detailed in “Data Polling Algorithm” in ■FLOW CHART should be used for Write-
In
Progress
Exceeded
Time
Limits
Write to
Buffer*
Take note that other sector groups will be affected if an address other than those for the HiddenROM region is
selected for the sector group address. Pay close attention that once it is protected, protection CANNOT BE
CANCELLED.
Detailed in “Hardware Sequence Flags” are all the status flags which can determine the status of the device for
current mode operation. When checking Hardware Sequence Flags during program operations, it should be
checked 4 µs after issuing program command. During sector erase, the part provides the status flags automat-
ically to the I/O ports. The information on DQ
consecutively read, then the DQ
sector is consecutively read. This allows the user to determine which sectors are erasing.
Once erase suspend is entered address sensitivity still applies. If the address of a non-erasing sector (one
available for read) is provided, then stored data can be read from the device. If the address of an erasing sector
(one unavailable for read) is applied, the device will output its status bits.
Buffer-Programming operations. Note that DQ
DQ
1
7
4
indicates the Write-to-Buffer ABORT status during Write-Buffer-Programming operations.
data for the LAST LOADED WRITE-BUFFER ADDRESS location.
Embedded Program Algorithm
Embedded Erase Algorithm
Program
Suspend
Mode
Erase
Suspend
Mode
Embedded Program Algorithm
Embedded Erase Algorithm
Erase
Suspend
Mode
BUSY State
Exceeded Timing Limits
ABORT State
Program-Suspend-Read
(Program Suspended Sector)
Program-Suspend-Read
(Non-Program Suspended Sector)
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)
Status
10
2
bit will toggle. However DQ
Hardware Sequence Flags
2
7
is address sensitive. If an address from an erasing sector is
during Write-Buffer-Programming indicates the data-bar for
Data
Data
Data
DQ
DQ
DQ
DQ
DQ
DQ
DQ
N/A
0
1
0
7
7
7
7
7
7
7
2
will not toggle if an address from a non-erasing
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Data
Data
Data
DQ
1
6
2
Data
Data
Data
DQ
to toggle.
0
0
0
0
1
1
1
0
1
0
5
2
bit.
Data
Data
Data
DQ
N/A
N/A
N/A
0
1
0
0
0
1
0
3
Toggle*
Toggle*
Data
Data
Data
DQ
N/A
N/A
N/A
N/A
N/A
1*
1
1
2
2
1
1
DQ
Data
Data
Data
N/A
N/A
N/A
N/A
N/A
N/A
0
0
0
1
1
*
3