PC28F128M29EWHF Datasheet, PDF (47/87 Pages) Micron Technology – Parallel NOR Flash Embedded Memory

32Mb, 64Mb, 128Mb: 3V Embedded Parallel NOR Flash
Block Protection Command Definitions – Address-Data Cycles
Block Protection Command Definitions – Address-Data Cycles
Table 20: Block Protection Command Definitions – Address-Data Cycles, 8-Bit and 16-Bit
Notes 1 and 2 apply to entire table
Address and Data Cycles
Command and
Code/Subcode
Bus
Size
1st
A
D
2nd
A
D
3rd
A
D
4th
A
D…
LOCK REGISTER Commands
ENTER LOCK REGISTER
COMMAND SET (40h)
x8 AAA AA 555 55 AAA 40
x16 555 AA 2AA 55 555
PROGRAM LOCK REGISTER x8
X
A0
X Data
(A0h)
x16
READ LOCK REGISTER
x8
X
Data
x16
PASSWORD PROTECTION Commands
ENTER PASSWORD
x8 AAA AA 555 55 AAA 60
PROTECTION COMMAND
x16 555
AA
2AA 55 555
SET (60h)
PROGRAM PASSWORD
(A0h)
x8
X
x16
A0 PWAn PWDn
READ PASSWORD
x8
00 PWD0 01 PWD1 02 PWD2 03 PWD3 …
x16 00 PWD0 01 PWD1 02 PWD2 03 PWD3
UNLOCK PASSWORD (25h/ x8
00
25
00 03 00 PWD0 01 PWD1 …
03h)
x16
NONVOLATILE PROTECTION Commands
ENTER NONVOLATILE
x8 AAA AA 555 55 AAA C0
PROTECTION COMMAND
x16 555
AA
2AA 55 555
SET (C0h)
PROGRAM NONVOLATILE x8
X
PROTECTION BIT (A0h)
x16
A0 BAd 00
READ NONVOLATILE
PROTECTION BIT STATUS
x8 BAd READ(0)
x16
CLEAR ALL NONVOLATILE x8
X
80
00 30
PROTECTION BITS (80/30h) _x16
NONVOLATILE PROTECTION BIT LOCK BIT Commands
ENTER NONVOLATILE
x8 AAA AA 555 55 AAA 50
PROTECTION BIT LOCK BIT _{x16 555}
AA
2AA 55 555
COMMAND SET (50h)
PROGRAM NONVOLATILE x8
X
A0
X
00
PROTECTION BIT LOCK BIT _x16
(A0h)
nth
A
D
Notes
3
5
4, 5, 6
3
7
07 PWD7 4, 6, 8,
9
00 29 8, 10
3
11
4, 6,
11
12
3
11
PDF: 09005aef84dc44a7
m29ew_32Mb-128Mb.pdf - Rev. B 11/12 EN
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