MBM29PL65LM Fujitsu Media Devices, MBM29PL65LM Datasheet - Page 24

• Manufacturer Part Number: MBM29PL65LM
• Description: FLASH MEMORY CMOS 64 M (4M X 16) BIT MirrorFlashTM
• Manufacturer: Fujitsu Media Devices

24
MBM29PL65LM
*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 “
DQ
Data Polling
In
Progress
Time
Limits
Write to
Buffer *
Exceeded
The device features Data Polling as a method to indicate to the host that the Embedded Algorithms are in
progress or completed. During the Embedded Program Algorithm, an attempt to read the device will produce a
complement of data last written to DQ
read the device will produce true data last written to DQ
read the device will produce a “0” at the DQ
attempt to read device will produce a “1” on DQ
Algorithm”. For programming, the Data Polling is valid after the rising edge of the fourth write pulse in the four
write pulse sequences.
For programming, the Data Polling is valid after the rising edge of the fourth write pulse in the four write pulse
sequences.
For chip erase and sector erase, the Data Polling is valid after the rising edge of the sixth write pulse in the six
write pulse sequences. Data Polling must be performed at sector addresses of sectors being erased, not pro-
tected sectors. Otherwise the status may become invalid.
If a program address falls within a protected sector, Data Polling on DQ
that bank returns to the read mode. After an erase command sequence is written, if all sectors selected for
erasing are protected, Data Polling on DQ
7
Buffer-Programming operations. Note that DQ
DQ
4
1
7
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-Supend -Read
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)
(Non-Program Suspended Sector)
(Program Suspend Sector)
Status
-90/10
Hardware Sequence Flags Table
7
. Upon completion of the Embedded Program Algorithm, an attempt to
7
is active for approximately 400 s, then the bank returns to read mode.
7
output. Upon completion of the Embedded Erase Algorithm, an
7
7
. The flowchart for Data Polling (DQ
during Write-Buffer-Programming indicates the data-bar for
7
. During the Embedded Erase Algorithm, an attempt to
Data
Data
Data
DQ
DQ
DQ
DQ
DQ
DQ
DQ
N/A
0
1
0
7
7
7
7
7
7
7
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Data
Data
Data
DQ
1
FLOW CHART” should be used for Write-
6
7
is active for approximately 1 s, then
2
Data
Data
Data
DQ
to toggle.
0
0
0
0
1
1
1
0
1
0
5
2
7
bit.
) is shown in “Data Polling
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