M29W800DT, M29W800DB
Common flash interface (CFI)
Table 25. Device geometry definition
Address
Data
Description
Value
x 16
x 8
27h
4Eh
0014h Device size = 2n in number of bytes
0002h
1 Mbyte
x 8, x 16
28h
29h
50h
52h
Flash device interface code description
0000h
async.
2Ah
2Bh
54h
56h
0000h
0000h
Maximum number of bytes in multi-byte program or page =
2n
NA
Number of erase block regions within the device.
2Ch
58h
0004h
4
It specifies the number of regions within the device
containing contiguous erase blocks of the same size.
2Dh
2Eh
5Ah
5Ch
0000h Region 1 information
1
16-Kbyte
2
0000h Number of identical size erase block = 0000h+1
2Fh
30h
5Eh
60h
0040h Region 1 information
0000h Block size in region 1 = 0040h * 256 bytes
31h
32h
62h
64h
0001h Region 2 information
0000h Number of identical size erase block = 0001h+1
33h
34h
66h
68h
0020h Region 2 information
8-Kbyte
1
0000h Block size in region 2 = 0020h * 256 bytes
35h
36h
6Ah
6Ch
0000h Region 3 information
0000h Number of identical size erase block = 0000h+1
37h
38h
6Eh
70h
0080h Region 3 information
32-Kbyte
15
0000h Block size in region 3 = 0080h * 256 byte
39h
3Ah
72h
74h
000Eh Region 4 information
0000h Number of identical-size erase block = 000Eh+1
3Bh
3Ch
76h
78h
0000h Region 4 information
64-Kbyte
0001h Block size in region 4 = 0100h * 256 byte
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NUMONYX [ NUMONYX B.V ]
