Common flash interface (CFI)
M29W800DT, M29W800DB
Table 26. Primary algorithm-specific extended query table
Address
x 16
x8
Data
Description
Value
40h
80h 0050h
‘P’
41h
82h
0052h
Primary algorithm extended query table unique ASCII string
‘PRI’
‘R’
42h
84h 0049h
‘I’
43h
86h 0031h Major version number, ASCII
‘1’
44h
88h 0030h Minor version number, ASCII
‘0’
Address sensitive unlock (bits 1 to 0)
45h
8Ah 0000h 00 = required, 01= not required
Yes
silicon revision number (bits 7 to 2)
Erase suspend
46h
8Ch 0002h
2
00 = not supported, 01 = read only, 02 = read and write
Block protection
47h
8Eh 0001h
1
00 = not supported, x = number of sectors in per group
Temporary block unprotect
48h
90h 0001h
Yes
00 = not supported, 01 = supported
Block protect /unprotect
49h
92h 0004h
4
04 = M29W800D
4Ah
94h 0000h Simultaneous operations, 00 = not supported
No
4Bh
96h 0000h Burst mode, 00 = not supported, 01 = supported
No
4Ch
98h
0000h
Page mode, 00 = not supported, 01 = 4 page word, 02 = 8
page word
No
Table 27. Security code area
Address
x 16
x8
Data
Description
61h
C3h, C2h XXXX
62h
C5h, C4h XXXX
64-bit: unique device number
63h
C7h, C6h XXXX
64h
C9h, C8h XXXX
44/52