m29dw640f Numonyx, m29dw640f Datasheet - Page 29

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

M29DW640F
4.3.3
Groups of blocks can be protected against accidental Program or Erase. The Protection Groups are
shown in
inside the blocks to be changed.
Block Protect and Chip Unprotect operations are described in
Table 6.
1. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address. All values in the
2. Normally the Command Interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands and A11-A21 are Don’t
Read/Reset
Auto Select
Program
Double Word Program
Quadruple Word Program 3
Unlock Bypass
Unlock Bypass Program
Unlock Bypass Reset
Chip Erase
Block Erase
Erase/Program Suspend
Erase/Program Resume
Read CFI Query
Enter Extended Block
Exit Extended Block
table are in hexadecimal.
Care, however for the Read CFI command A21-A14 must specify a bank address, and the subsequent read operations
must be addressed to the same bank.
Command
Appendix A
Block Protect and Chip Unprotect commands
Commands, 16-bit mode, BYTE = V
(2)
,
Table 24: Block addresses
6+
1
3
3
4
3
3
2
2
6
1
1
1
3
4
(BKA)
BKA
BKA
Add
555
555
555
555
555
555
555
555
555
555
55
X
X
X
1st
Data Add Data
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
B0
50
56
90
30
98
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
PA0
PA0
PA
X
2nd
. The whole chip can be unprotected to allow the data
PD0
PD0
PD
55
55
55
55
00
55
55
55
55
IH
(BKA)
Bus Write operations
Add
PA1
555
555
PA1
555
555
555
555
555
X
3rd
Appendix D
Data Add Data Add Data Add Data
PD1
PD1
A0
F0
90
20
80
80
88
90
PA2
555
555
PA
X
4th
.
PD2
PD
AA
AA
00
(1)
2AA
2AA
PA3
Command interface
5th
PD3
55
55
555
BA
6th
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10
30