28F320J5 and 28F640J5
Table 6. Example of Query Structure Output of a x16- and x8-Capable Device
Word Addressing
Hex Code
Byte Addressing
Hex Code
Offset
–A
Value
Offset
Value
A
D
–D
A –A
D –D
7 0
15
0
15
0
7
0
0010h
0011h
0012h
0013h
0014h
0015h
0016h
0017h
0018h
...
0051
0052
0059
“Q”
“R”
“Y”
20h
21h
22h
23h
24h
25h
26h
27h
28h
...
51
51
52
52
59
59
P_ID
P_ID
P_ID
...
“Q”
“Q”
“R”
“R”
“Y”
P_ID
PrVendor
ID #
PrVendor
TblAdr
AltVendor
ID #
LO
P_ID
HI
P
“Y”
LO
P
PrVendor
ID #
ID #
...
HI
LO
LO
A_ID
LO
A_ID
...
HI
HI
...
4.2.2
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or “database.” See AP-646 Common Flash Interface (CFI) and Command Sets
(order number 292204) for a full description of CFI.
The following sections describe the Query structure sub-sections in detail.
Table 7. Query Structure(1)
Offset
Sub-Section Name
Description
00h
01h
Manufacturer Code
Device Code
(BA+2)h(2)
04-0Fh
10h
Block Status Register
Reserved
Block-Specific Information
Reserved for Vendor-Specific Information
CFI Query Identification StringReserved for Vendor-Specific Information
1Bh
System Interface Information
Device Geometry Definition
Command Set ID and Vendor Data Offset
Flash Device Layout
27h
Primary Intel-Specific
Extended Query Table
Vendor-Defined Additional Information Specific to the Primary
Vendor Algorithm
P(3)
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., 02000h is block 2’s beginning location when the block size is
128 Kbyte).
3. Offset 15 defines “P” which points to the Primary Intel-Specific Extended Query Table.
20
Datasheet
INTEL [ INTEL ]
