JS28F256P33BFE datasheet(62/90 Pages) MICRON

62 / 90 page

P33-65nm

Datasheet

Aug 2009

Order Number: 320003-08

Table 29: Example of Query Structure Output of x16 Devices

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 30 summarizes the structure sub-sections and address

locations.

Table 30: Query Structure

Note:

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.

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).

Offset

Hex Code

Value

AX-A1

D15-D0

00010h

0051

“Q”

00011h

0052

“R”

00012h

0059

“Y”

00013h

P_IDLO

PrVendor ID#

00014h

P_IDHI

00015h

PLO

PrVendor TblAdr

00016h

PHI

00017h

A_IDLO

AltVendor ID#

00018h

A_IDHI

...

00001-Fh Reserved

Reserved for vendor-specific information

00010h

CFI query identification string

Command set ID and vendor data offset

0001Bh

System interface information

Device timing & voltage information

00027h

Device geometry definition

Flash device layout

P(3)

Primary Numonyx-specific Extended Query

Vendor-defined additional information specific

to the Primary Vendor Algorithm

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