Numonyx™ Wireless Flash Memory (W18)
Table 37: Example of Query Structure Output of x16 Device
Word Addressing
Offset
A
X
- A
0
00010h
00011h
00012h
00013h
00014h
00015h
00016h
00017h
00018h
0051
0052
0059
P ID
LO
P ID
HI
P
LO
P
HI
A ID
LO
A ID
HI
Hex Code
D
16
- D
0
“Q”
“R”
“Y”
P rVendor
ID #
P rVendor
TblAdr
AltVendor
ID #
Value
Offset
A
X
- A
0
00010h
00011h
00012h
00013h
00014h
00015h
00016h
00017h
00018h
51
52
59
P ID
LO
P ID
LO
P ID
HI
...
...
...
Byte Addressing
Hex Code
D
7
- D
0
“Q”
“R”
“Y”
P rVendor
ID #
ID #
...
...
...
Value
B.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 38: Query Structure
Offset
00000h
00001h
(BA+2)h
(2)
00004-Fh
00010h
0001Bh
00027h
P
(3)
Description
Manufacturer Code
Device Code
Block Status register
Block-specific information
Reserved
Reserved for vendor-specific information
CFI query identification string
Command set ID and vendor data offset
System interface information
Device timing & voltage information
Device geometry definition
Flash device layout
Vendor-defined additional information specific
Primary Intel-specific Extended Query Table
to the Primary Vendor Algorithm
Sub-Section Name
(1)
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 32K-word).
3.
Offset 15 defines “P” which points to the Primary Numonyx-specific Extended Query Table.
B.3
Block Status Register
The Block Status Register indicates whether an erase operation completed successfully
or whether a given block is locked or can be accessed for flash program/erase
operations.
Block Erase Status (BSR.1) allows system software to determine the success of the last
block erase operation. BSR.1 can be used just after power-up to verify that the VCC
supply was not accidentally removed during an erase operation.
Datasheet
90
November 2007
Order Number: 290701-18
NUMONYX [ NUMONYX B.V ]
