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256Mb, 512Mb, 1Gb, 2Gb: 3V Embedded Parallel NOR Flash
Common Flash Interface
Table 20: Device Geometry Definition (Continued)
Address
x16
2Ah
2Bh
2Ch
x8
54h
56h
58h
Data
000Ah
0000h
0001h
Description
Maximum number of bytes in multi-byte program or page =
2 n
Number of erase block regions. It specifies the number of
Value
1024 1
1
regions containing contiguous erase blocks of the same size.
2Dh
2Eh
5Ah
5Ch
00FFh
0000h
00FFh
Erase block region 1 information
Number of identical-size erase blocks = 00FFh + 1 / 01FFh +
1 / 03FFh + 1 / 07FFh + 1
256
512
0001h
00FFh
0003h
00FFh
0007h
1024
2048
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
3Ah
3Bh
3Ch
5Eh
60h
62h
64h
66h
68h
6Ah
6Ch
6Eh
70h
72h
74h
76h
78h
0000h
0002h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
Erase block region 1 information
Block size in region 1 = 0200h × 256 bytes
Erase block region 2 information
Erase block region 3 information
Erase block region 4 information
128KB
0
0
0
Note:
1. For x16/x8 mode, the maximum buffer size is 1024/256 bytes, respectively.
Table 21: Primary Algorithm-Specific Extended Query Table
Note 1 applies to the entire table
Address
x16
40h
41h
42h
43h
44h
45h
x8
80h
82h
84h
86h
88h
8Ah
Data
0050h
0052h
0049h
0031h
0033h
0018h
Description
Primary algorithm extended query table unique ASCII string “PRI”
Major version number, ASCII
Minor version number, ASCII
Address sensitive unlock (bits[1:0]):
Value
"P"
"R"
"I"
"1"
"3"
Required
00 = Required
01 = Not required
Silicon revision number (bits[7:2])
PDF: 09005aef849b4b09
m29ew_256mb_2gb.pdf - Rev. B 8/12 EN
51
Micron Technology, Inc. reserves the right to change products or specifications without notice.
? 2012 Micron Technology, Inc. All rights reserved.
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