MBM29SL160TD Fujitsu Microelectronics, Inc., MBM29SL160TD Datasheet - Page 22

• Manufacturer Part Number: MBM29SL160TD
• Description: Flash Memory 16m 2m X 8/1m X 16 Bit
• Manufacturer: Fujitsu Microelectronics, Inc.

22
MBM29SL160TD
Extended Command
(1) Fast Mode
(2) Fast Programming
(3) Extended Sector Group Protection
(4) CFI (Common Flash Memory Interface)
MBM29SL160TD/BD has Fast Mode function. This mode dispenses with the initial two unclock cycles
required in the standard program command sequence by writing Fast Mode command into the command
register. In this mode, the required bus cycle for programming is two cycles instead of four bus cycles in
standard program command. (Do not write erase command in this mode.) The read operation is also executed
after exiting this mode. To exit this mode, it is necessary to write Fast Mode Reset command into the command
register. (Refer to the Figure 27.) The V
During Fast Mode, the programming can be executed with two bus cycles operation. The Embedded Program
Algorithm is executed by writing program set-up command (A0H) and data write cycles (PA/PD). (Refer to
the Figure 27.)
In addition to normal sector group protection, the MBM29SL160TD/BD has Extended Sector Group
Protection as extended function. This function enable to protect sector group by forcing V
and write a command sequence. Unlike conventional procedure, it is not necessary to force V
timing for control pins. The only RESET pin requires V
sector group protection requires V
the set-up command (60H) into the command register. Then, the sector group addresses pins (A
A
(recommend to set V
(60H). A sector group is typically protected in 150 s. To verify programming of the protection circuitry, the
sector group addresses pins (A
and write a command (40H). Following the command write, a logical “1” at device output DQ
for protected sector in the read operation. If the output data is logical “0”, please repeat to write extended
sector group protection command (60H) again. To terminate the operation, it is necessary to set RESET pin
to V
The CFI (Common Flash Memory Interface) specification outlines device and host system software
interrogation handshake which allows specific vendor-specified software algorithms to be used for entire
families of devices. This allows device-independent, JEDEC ID-independent, and forward-and backward-
compatible software support for the specified flash device families. Refer to CFI specification in detail.
The operation is initiated by writing the query command (98H) into the command register. Following the
command write, a read cycle from specific address retrives device information. Please note that output data
of upper byte (DQ
operation, it is necessary to write the read/reset command sequence into the register. (See Table 15.)
16
, A
IH
. (Refer to the Figures 19 and 28.)
15
, A
14
, A
13
and A
8
to DQ
IL
12
for the other addresses pins), and write extended sector group protection command
) and (A
15
-10/-12
) is “0” in word mode (16 bit) read. Refer to the CFI code table. To terminate
19
6
, A
, A
ID
/MBM29SL160BD
18
1
on RESET pin. With this condition, the operation is initiated by writing
, A
, A
0
17
CC
) = (0, 1, 0) should be set to the sector group to be protected
, A
active current is required even CE = V
16
, A
15
, A
ID
14
, A
for sector group protection in this mode. The extended
13
and A
12
) and (A
-10/-12
6
, A
1
, A
IH
0
) = (0, 1, 0) should be set
during Fast Mode.
ID
on RESET pin
0
ID
will produce
and control
19
, A
18
, A
17
,