m29dw640f Numonyx, m29dw640f Datasheet - Page 26

• Manufacturer Part Number: m29dw640f
• Description: 64 Mbit 8mb X8 Or 4mb X16, Multiple Bank, Page, Boot Block 3v Supply Flash Memory
• Manufacturer: Numonyx

Command interface
4.2.2
4.2.3
4.2.4
26/74
Quadruple Word Program command
This is used to write a page of four adjacent Words, in x16 mode, in parallel. The addresses
of the four Words must differ only in A1 and A0.
Five bus write cycles are necessary to issue the command.
1.
2.
3.
4.
5.
Double Byte Program
This is used to write two adjacent Bytes in x8 mode, in parallel. The addresses of the two
Bytes must differ only in DQ15A-1.
Three bus write cycles are necessary to issue the command.
1.
2.
3.
Quadruple Byte Program
This is used to write four adjacent Bytes in x8 mode, in parallel. The addresses of the four
Bytes must differ only in A0, DQ15A-1.
Five bus write cycles are necessary to issue the command.
1.
2.
3.
4.
5.
The first bus cycle sets up the command.
The second bus cycle latches the Address and the Data of the first Word to be written.
The third bus cycle latches the Address and the Data of the second Word to be written.
The fourth bus cycle latches the Address and the Data of the third Word to be written.
The fifth bus cycle latches the Address and the Data of the fourth Word to be written
and starts the Program/Erase Controller.
The first bus cycle sets up the command.
The second bus cycle latches the Address and the Data of the first Byte to be written.
The third bus cycle latches the Address and the Data of the second Byte to be written
and starts the Program/Erase Controller.
The first bus cycle sets up the command.
The second bus cycle latches the Address and the Data of the first Byte to be written.
The third bus cycle latches the Address and the Data of the second Byte to be written.
The fourth bus cycle latches the Address and the Data of the third Byte to be written.
The fifth bus cycle latches the Address and the Data of the fourth Byte to be written and
starts the Program/Erase Controller.
command
command
M29DW640F