128Mb 3V Embedded Parallel NOR Flash
Block Protection Command Definitions – Address-Data Cycles
Block Protection Command Definitions – Address-Data Cycles
Table 12: Block Protection Command Definitions – Address-Data Cycles, 8-Bit and 16-Bit
Notes 1 and 2 apply to entire table
Address and Data Cycles
1st
2nd
3rd
4th
nth
Command and
Code/Subcode
Bus
Size
A
D
A
D
A
D
A
D
…
A
D
Notes
LOCK REGISTER Commands
ENTER LOCK REGISTER
COMMAND SET (40h)
x8
x16
x8
AAA
555
X
AA
AA
A0
555
55
55
AAA
555
40
3
5
2AA
X
PROGRAM LOCK REGISTER
(A0h)
Data
x16
x8
READ LOCK REGISTER
X
Data
4, 5, 6
x16
PASSWORD PROTECTION Commands
ENTER PASSWORD
PROTECTION COMMAND
SET (60h)
x8
AAA
555
AA
AA
555
55
55
AAA
555
60
3
7
x16
2AA
PROGRAM PASSWORD
(A0h)
x8
x16
x8
X
A0
PWAn PWDn
READ PASSWORD
00
00
00
PWD0
PWD0
25
01
01
00
PWD1
PWD1
03
02
02
00
PWD2 03 PWD3 … 07 PWD7 4, 6, 8,
9
x16
x8
PWD2 03 PWD3
UNLOCK PASSWORD
(25h/03)
PWD0 01 PWD1 … 00
29
8, 10
x16
NONVOLATILE PROTECTION Commands
ENTER NONVOLATILE
PROTECTION COMMAND
SET (C0h)
x8
AAA
555
AA
AA
555
55
55
AAA
555
C0
3
x16
2AA
PROGRAM NONVOLATILE
PROTECTION BIT (A0h)
x8
x16
x8
X
A0
BAd
00
READ NONVOLATILE
BAd READ(0)
4, 6,
11
PROTECTION BIT STATUS
x16
x8
CLEAR ALL NONVOLATILE
PROTECTION BITS (80/30h)
X
80
00
30
12
x16
NONVOLATILE PROTECTION BIT LOCK BIT Commands
ENTER NONVOLATILE
PROTECTION BIT LOCK BIT
COMMAND SET (50h)
x8
AAA
555
AA
AA
555
55
55
AAA
555
50
3
x16
2AA
PROGRAM NONVOLATILE
PROTECTION BIT LOCK BIT
(A0h)
x8
X
A0
X
00
11
x16
PDF: 09005aef84daa141
m29w_128mb.pdf - Rev. A 7/13 EN
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