28F640L30, 28F128L30, 28F256L30
Table 19. Example of Query Structure Output of x16- Devices
Word Addressing:
Byte Addressing:
Offset
AX–A0
Hex Code
Value
Offset
AX–A0
Hex Code
D7–D0
51
52
59
P_IDLO
P_IDLO
P_IDHI
...
Value
D15–D0
00010h
00011h
00012h
00013h
00014h
00015h
00016h
00017h
00018h
...
0051
0052
0059
P_IDLO
P_IDHI
PLO
"Q"
"R"
"Y"
00010h
00011h
00012h
00013h
00014h
00015h
00016h
00017h
00018h
...
"Q"
"R"
"Y"
PrVendor
ID #
PrVendor
TblAdr
AltVendor
ID #
PrVendor
ID #
ID #
PHI
...
A_IDLO
A_IDHI
...
...
C.2
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or “database.” The structure sub-sections and address locations are summarized
below.
Table 20. Query Structure
Description(1)
Reserved for vendor-specific information
Command set ID and vendor data offset
Device timing & voltage information
Flash device layout
Offset
00001-Fh Reserved
00010h CFI query identification string
0001Bh System interface information
Sub-Section Name
00027h
P(3)
Device geometry definition
Primary Intel-specific Extended Query Table
Vendor-defined additional information specific
NOTES:
1. Refer to the Query Structure Output section and offset 28h for the detailed definition of offset address as a
function of device bus width and mode.
2. BA = Block Address beginning location (i.e., 08000h is block 1’s beginning location when the block size is
16K-word).
3. Offset 15 defines “P” which points to the Primary Intel-specific Extended Query Table.
84
Datasheet
INTEL [ INTEL ]
