MT28F320J3 Micron, MT28F320J3 Datasheet - Page 14

• Manufacturer Part Number: MT28F320J3
• Description: Q-FLASHTM MEMORY
• Manufacturer: Micron

QUERY STRUCTURE OVERVIEW
display the CFI query structure or data base. The struc-
ture subsections and address locations are outlined in
Table 7.
NOTE: 1. Refer to the Query Structure Output section and offset 28h for the detailed definition of offset address as a function
128Mb, 64Mb, 32Mb Q-Flash Memory
MT28F640J3_7.p65 – Rev. 6, Pub. 8/02
OFFSET
00h
01h
(BA+2)h
04–0Fh
10h
1Bh
27h
P
3
The QUERY command makes the Flash component
A16–A1
OFFSET
0010h
0011h
0012h
0013h
0014h
0015h
0016h
0017h
0018h
2. BA = Block address beginning location (i.e., 020000h is block two’s beginning location when the block size is 64K-word).
3. Offset 15 defines “P,” which points to the Primary Extended Query Table.
...
of device bus width and mode.
2
Example of Query Structure Output of a x16- and x8-Capable Device
WORD ADDRESSING
SUBSECTION NAME
Block Status Register
Reserved
CFI Query Identification String
System Interface Information
Device Geometry Definition
Primary Extended Query Table
HEX CODE
A_ID LO
P_ID LO
A_ID HI
P_ID HI
0051
0052
0059
P LO
P HI
...
DQ15–DQ0
AltVendor
PrVendor
PrVendor
VALUE
TblAdr
Query Structure
ID #
ID #
Q
...
R
Y
Table 6
Table 7
DESCRIPTION
Manufacturer compatibility code
Device code
Block-specific information
Reserved for vendor-specific information
Reserved for vendor-specific information
Command set ID and vendor data offset
Flash device layout
Vendor-defined additional information specific to the
primary vendor algorithm
14
OFFSET
A7–A0
20h
21h
22h
23h
24h
25h
26h
27h
28h
...
1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
BYTE ADDRESSING
128Mb, 64Mb, 32Mb
HEX CODE
P_ID LO
P_ID LO
P_ID HI
Q-FLASH MEMORY
52
59
59
51
51
52
...
DQ7–DQ0
©2002, Micron Technology, Inc.
PrVendor
PrVendor
VALUE
ID #
Q
Q
...
R
R
Y
Y