MBM29DL32TF Fujitsu, MBM29DL32TF Datasheet - Page 30

• Manufacturer Part Number: MBM29DL32TF
• Description: 32M-Bit Dual Operation Flash Memory
• Manufacturer: Fujitsu

MBM29DL32TF/BF
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bottom-boot-configured device, or the two sectors containing the highest addresses in a top-boot-configured
device.
If the system asserts V
on the WP/ACC pin, the device reverts to whether the two outermost 8 K byte boot
IH
sectors were last set to be protected or unprotected. That is, sector group protection or unprotection for these
two sectors depends on whether they were last protected or unprotected using the method described in “Sector
Group Protection”.
13. Accelerated Program Operation
MBM29DL32TF/BF offers accelerated program operation which enables the programming in high speed.
If the system asserts V
to the WP/ACC pin, the device automatically enters the acceleration mode and the
ACC
time required for program operation will reduce to about 60 . This function is primarily intended to allow high
speed program, so caution is needed as the sector group will temporarily be unprotected.
The system would use a fact 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 automatically set to fast mode. Therefore, the present sequence could be used
for programming and detection of completion during acceleration mode.
Removing V
from the WP/ACC pin returns the device to normal operation. Do not remove V
from WP/
ACC
ACC
ACC pin while programming. See “18. Accelerated Program Timing Diagram” in TIMING DIAGRAM.
Erase operation at Acceleration mode is strictly prohibited.
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