m58lt256jsb STMicroelectronics, m58lt256jsb Datasheet - Page 27

• Manufacturer Part Number: m58lt256jsb
• Description: 256 Mbit 16 Mb 16, Multiple Bank, Multilevel, Burst 1.8 V Supply, Secure Flash Memories
• Manufacturer: STMicroelectronics

M58LT256JST, M58LT256JSB
4.11
Program/Erase Suspend command
The Program/Erase Suspend command is used to pause a program or block erase
operation. The command can be addressed to any bank. The Program/Erase Resume
command is required to restart the suspended operation.
One bus write cycle is required to issue the Program/Erase Suspend command. Once the
Program/Erase Controller has paused bits SR7, SR6 and/ or SR2 of the Status Register are
set to ‘1’.
The following commands are accepted during program/erase suspend:
In addition, if the suspended operation is a block erase, then the following commands are
also accepted:
During an erase suspend the block being erased can be protected by issuing the Block
Protect command. When the Program/Erase Resume command is issued, the operation
completes.
It is possible to accumulate multiple suspend operations. For example, it is possible to
suspend an erase operation, start a program operation, suspend the program operation,
and then read the array.
If a Program command is issued during a block erase suspend, the erase operation cannot
be resumed until the program operation completes.
The Program/Erase Suspend command does not change the read mode of the banks. If the
suspended bank was in read Status Register, read electronic signature or read CFI query
mode, the bank remains in that mode and outputs the corresponding data.
Refer to
program/erase suspend.
During a program/erase suspend, the device can be placed in standby mode by taking Chip
Enable to V
See
Figure 24: Erase suspend and resume flowchart and pseudocode
the Program/Erase Suspend command.
Appendix
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Section 8
Program/Erase Resume
Read Array (data from erase-suspended block or program-suspended word is not
valid)
Read Status Register
Read Electronic Signature
Read CFI query
Clear Status Register
Program (except in erase-suspended block)
Buffer Program (except in erase suspended blocks)
Block Protect
Block Unprotect
IH
. Program/erase is aborted if Reset, RP, goes to V
C,
Figure 22: Program suspend and resume flowchart and
for detailed information about simultaneous operations allowed during
IL
.
for flowcharts for using
Command interface
pseudocode, and
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