PC48F4400PLVB0 datasheet(90/102 Pages) NUMONYX

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Numonyx™ Wireless Flash Memory (W18)

Datasheet

November 2007

Order Number: 290701-18

Numonyx™ Wireless Flash Memory (W18)

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

Notes:

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 32K-word).

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.

Table 37: Example of Query Structure Output of x16 Device

Word Addressing

Byte Addressing

Offset

Hex Code

Value

Offset

Hex Code

Value

X - A

D16 - D0

X - A

D7 - D0

00010h

0051

“Q”

00010h

“Q”

00011h

0052

“R”

00011h

“R”

00012h

0059

“Y”

00012h

“Y”

00013h

P IDLO

P rVendor

00013h

P IDLO

P rVendor

00014h

P IDHI

ID #

00014h

P IDLO

ID #

00015h

PLO

P rVendor

00015h

P IDHI

ID #

00016h

PHI

TblAdr

00016h

...

00017h

A IDLO

AltVendor

00017h

...

00018h

A IDHI

ID #

00018h

...

Offset

Sub-Section Name

Description

(1)

00000h

Manufacturer Code

00001h

Device Code

(BA+2)h(2) Block Status register

Block-specific information

00004-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 Intel-specific Extended Query Table

Vendor-defined additional information specific

to the Primary Vendor Algorithm

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