m29dw256g Numonyx, m29dw256g Datasheet - Page 29

• Manufacturer Part Number: m29dw256g
• Description: 256-mbit X16, Multiple Bank, Page, Dual Boot 3 V Supply Flash Memory
• Manufacturer: Numonyx

6.1.7
6.1.8
Erase Resume command
The Erase Resume command is used to restart the program/erase controller after an erase
suspend.
The device must be in read array mode before the Resume command will be accepted. An
erase can be suspended and resumed more than once.
Program command
The Program command can be used to program a value to one address in the memory
array at a time. The command requires four bus write operations, the final write operation
latches the address and data in the internal state machine and starts the program/erase
controller.
Programming can be suspended and then resumed by issuing a Program Suspend
command and a Program Resume command, respectively (see
Suspend command
If the address falls in a protected block then the program command is ignored, the data
remains unchanged. The status register is never read and no error condition is given.
After programming has started, bus read operations output the status register content (bus
reading operations from banks different from those including the block being programmed,
output the memory array content). See See Figure 17: Write enable controlled program
waveforms for more details. Typical program times are given inTable 21: Program, erase
times and program, erase endurance cycles.
After the program operation has completed the memory will return to the read mode, unless
an error has occurred. When an error occurs, bus read operations to the memory continue
to output the status register. A Read/Reset command must be issued to reset the error
condition and return to read mode.
One of the erase commands must be used to set all the bits in a block or in the whole
memory from ’0’ to ’1’.
The program operation is aborted by performing a reset or powering-down the device. In
this case data integrity cannot be ensured, and it is recommended to reprogram the word or
byte aborted.
and
Section 6.1.10: Program Resume
command).
Section 6.1.9: Program
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