MBM29PL3200BE Fujitsu Microelectronics, Inc., MBM29PL3200BE Datasheet - Page 21

• Manufacturer Part Number: MBM29PL3200BE
• Description: Page Mode Flash Memory 32 M 2 M X 16/1 M X 32 Bit
• Manufacturer: Fujitsu Microelectronics, Inc.

Boot Block Sector Protection
Accelerated Program Operation
The Write Protection function provides a hardware method of protecting certain “outermost” 16 K word (
mode) sector without using V
If the system asserts V
16 K word sector independently of whether this sector was protected or unprotected using the method described
in “Sector Protection/Unprotection”. The outermost 16 K word sector is the highest addresses in
MBM29PL3200TE, or the lowest addresses in MBM29PL3200BE.
If the system asserts V
set to be protected or unprotected. That is, sector protection or unprotection for this sector depends on whether
this was last protected or unprotected using the method described in “Sector protection/unprotection”.
The device offers accelerated program operation which enables high-speed programming. If the system asserts
V
operation will reduce to about 60 . This function is primarily intended to allow high-speed programming, so
caution is needed as the sector group will temporarily be unprotected.
The system would use a fast program command sequence when programming during acceleration mode.
Set command to fast mode and reset command from fast mode are not necessary. When the device enters the
acceleration mode, the device is automatically set to fast mode. Therefore, the present sequence could be used
for programming and detection of completion in acceleration mode.
Removing V
while programming. See Figure 16.
ACC
to the ACC pin, the device automatically enters the acceleration mode and the time required for program
(MBM29PL3200TE : SA18, MBM29PL3200BE : SA0)
ACC
from the ACC pin returns the device to normal operation. Do not remove V
IL
IL
on the WP pin, the device disables program and erase functions in the “outermost”
on the WP pin, the device reverts to whether the outermost 16 K word sector was last
ID
.
MBM29PL3200TE/BE
ACC
from the ACC pin
70/90
16
21