P30-65nm SBC
Table 31: Example of Query Structure Output of x16 Devices
Offset
A -A
Hex Code
Value
D
-D
0
X
1
15
00010h
00011h
00012h
00013h
00014h
00015h
00016h
00017h
00018h
...
0051
0052
0059
“Q”
“R”
“Y”
P_ID
LO
PrVendor ID#
P_ID
HI
P
LO
PrVendor TblAdr
P
HI
A_ID
LO
AltVendor ID#
...
A_ID
...
HI
A.1.2
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or database. Table 32 summarizes the structure sub-sections and address
locations.
Table 32: Query Structure
00001-Fh Reserved
Reserved for vendor-specific information
Command set ID and vendor data offset
Device timing & voltage information
Flash device layout
00010h
CFI query identification string
0001Bh System interface information
00027h
Device geometry definition
Vendor-defined additional information specific
to the Primary Vendor Algorithm
P(3)
Primary Numonyx-specific Extended Query
Note:
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.
3.
BA = Block Address beginning location (i.e., 08000h is block 1’s beginning location when the block size is 32-KWord).
Offset 15 defines “P” which points to the Primary Numonyx-specific Extended Query Table.
A.1.3
Read CFI Identification String
The Identification String provides verification that the component supports the
Common Flash Interface specification. It also indicates the specification version and
supported vendor-specified command set(s).
Datasheet
62
Apr 2010
Order Number: 208033-02
MICRON [ MICRON TECHNOLOGY ]
