Microtech PCD-47B Manual de usuario descargar pdf (Pagina 9)

US

7,597,268

B2

1

MEMORY

MODULE

WHICH

INCLUDES

A

FORM

FACTOR

CONNECTOR

CROSS

REFERENCE

TO

RELATED

APPLICATIONS

The

present

application

is

a

continuation

of

US.

patent

application

Ser.

No.

10/063,021

?led

Mar.

12,

2002,

now

US.

Pat.

No.

7,252,240,

Which

is

a

continuation-in-part

of

US.

patent

application

Ser.

No.

09/610,904

?led

Jul.

6,

2000,

now

US.

Pat.

No.

6,438,638,

the

disclosures

of

Which

are

incor

porated

herein

by

reference.

FIELD

OF

THE

INVENTION

The

present

invention

relates

generally

to

memory

mod

ules

and

more

particularly

to

a

memory

module

Which

is

coupled

via a

single

connector.

BACKGROUND

OF

THE

INVENTION

It

is

knoWn

that

?ash

media

is

utiliZed

in

a

variety

of

environments.

Heretofore,

the

?ash

media

is

provided

as

a

separate

media

to

a

device.

In

so

doing,

an

array

of

different

types

of

modules

must

be

provided

to

alloW

for

a

connection

to

a

device

such

as

a

digital

camera,

MP3

player

or

?ash

reader.

It

is

desirable

to

provide

a

memory

module

that

could

be

utiliZed

With

a

variety

of

devices.

The

memory

module

must

be

compatible With

existing

standards

and

be

capable

of

operating

as

a

module.

Accordingly,

What

is

needed

is

a

system

and

method

for

providing

a

plurality

of

memories

to

such

a

device

Without

requiring

multiple

connectors

or

a

controller

Within

the

memory

module.

The

system

should

be

cost

effective,

a

simple

modi?cation

and

easily

implementable

into

an

exist

ing

device.

The

present

invention

addresses

such

a

need.

SUMMARY

OF

THE

INVENTION

A

plurality

of

?ash

media

are

coupled

to

a

single

form

factor

connector

to

provide

a

module,

i.e.,

referred

to

as

a

SmartStack

module,

that

can

be

coupled

directly

to

a

Smart

Stack

enabled

device.

The

SmartStack

module

does

not

include

a

controller

and

is

controlled

from

the

host

side.

The

form

factor

connector

Would

typically

be

a

CompactFlash

(CF)

form

factor

or

other

form

factors

that

are

used

in

a

variety

of

devices.

The

SmartStack

memory

module

in

a

preferred

embodiment

includes

a

Write

protect

sWitch

that

Will

alloW

for

certain

portions

of

the

memory

Within

the

SmartStack

module

not

to

be

Written

to.

In

addition,

a

portion

of

the

?ash

memory

Will

be

allocated

to

the

secure

area

for

storing

information

to

implement

various

forms of

security.

Another

portion

of

the

?ash

memory

is

allocated

to

store

optional

biometric

information

such

as

a

user’s

?ngerprint

or

retinal

scan

information,

etc.

In a

preferred

embodiment,

the

SmartStack

module

is

a

?ash

memory

card

in

a

CF

Type

I

or

II

format.

The

card

Will

not

be

compatible

With

CF

readers,

but

Will

be

compatible

With

SmartStack

readers.

Larger

memory

siZes

Will

be

avail

able

as

larger

?ash

memory

chips

become

available.

Finally,

the

SmartStack

module

Will

include

a

Write

protect sWitch.

BRIEF

DESCRIPTION

OF

THE

DRAWINGS

FIG.

1

illustrates

a

SmartStack

module.

FIG.

2

illustrates

examples

of

the

kinds

of

applications

that

can

utiliZe

SmartStack

modules, such

as

a

?ash

reader,

digital

camera

or

MP3

player.

20

25

30

35

40

45

50

55

60

65

2

FIG.

3

is

a

table

Which

illustrates

hoW

a

particular

card

Will

be

detected

by

a

device.

FIG.

4

is

a

table

that

illustrates

addressing

of

the

Smart

Stack

module.

FIG.

4A

is

a

table

that

illustrates

the

relationship

betWeen

the

SmartStack

module

address

lines

and

their

equivalent

pins

on

a

CompactFlash

card.

FIG.

5

is

a

table

Which

illustrates

the

setting

of

a

secure

area

of

data

for

the

SmartStack

module.

FIG.

6

illustrates

the

SmartStack

module

Which

includes

the

Write

protect,

security

area

and

biometric

area.

FIG.

7

illustrates

adding

RAM

to

SmartStack

module

to

improve

performance.

FIG.

8

illustrates

daisy

chaining

a

plurality

of SmartStack

modules

in

accordance

With

the

present

invention.

FIG.

9

illustrates

a

SmartStack

module

Which

is

an

expansion

bay.

DETAILED

DESCRIPTION

The

present

invention

relates

generally

to

memory

mod

ules

and

more

particularly

to

a

memory

module

Which

is

coupled

via a

single

connector.

The

folloWing

description

is

presented

to

enable

one

of

ordinary

skill

in

the

art

to

make

and

use

the invention

and

is

provided

in

the

context

of

a

patent

application

and

its

requirements.

Various

modi?cations

to

the

preferred

embodiment

and

the

generic

principles

and

features

described

herein

Will

be

readily

apparent

to

those

skilled

in

the

art.

Thus,

the

present

invention

is

not

intended

to

be

limited

to

the

embodiment

shoWn

but

is

to

be

accorded

the

Widest

scope

consistent

With

the

principles

and

features

described

herein.

A

plurality

of

?ash

media

are

coupled

to

a

single

form

factor

connector

to

provide

a

module,

i.e.,

referred

to

as

a

SmartStack

module,

that

can be

coupled

directly to

the

device.

The

SmartStack

module

does

not

include

a

controller

and

is

controlled

from

the

host

side.

The

form

factor

connec

tor

Would

typically

be

a

CompactFlash

(CF)

form

factor

or

some

other

form

factor

that

are

used

in

a

variety

of

devices.

The

SmartStack

memory

module

in

a

preferred

embodiment

includes

a

Write

protect

sWitch

that

Will

alloW

for

certain

portions

of

the

memory

Within

the

SmartStack

module

not

to

be

Written

to.

In

addition,

a

portion

of

the

?ash

memory

Will

be

allocated

to

the

secure

area

for

storing

information

to

implement

various

forms of

security.

Another

portion

of

the

?ash

memory

is

allocated

to

store

optional

biometric

infor

mation

such

as

a

user’

s

?ngerprint

or

retinal

scan

information,

etc.

To

more

fully

describe

the

present

invention,

refer

noW

to

the

folloWing

description

in

conjunction

With

accompanying

?gures.

FIG.

1

illustrates

a

SmartStack

module

100.

The

SmartStack

module

100

comprises

a

plurality

of

memory

devices

(i.e.,

?ash

chips

102a,

1021)

through

10211)

coupled

to

a

connector

104.

In

a

preferred

embodiment,

the

?ash

chips

are

coupled

together

such

that

there

is

redundancy

for

each

section.

In

a

preferred

embodiment

the

SmartStack

module

Would

have

the

same

form

factor

as

a

CompactFlash

(CF)

card.

The

module

could

then

be

plugged

into

any

CF

slot.

FIG.

2

illus

trates

examples

of

the

kinds

of

applications

that

can

utiliZe

the

SmartStack

module

100,

such

as

a

?ash

reader

202,

digital

camera 204

or

MP3

player

206.

In a

preferred

embodiment,

only

SmartStack

module

202

based

CF

readers

can

read/Write

to

SmartStack

media,

and

inserting

a

SmartStack

module

into

standard

CF

readers

Will

not

damage

the

SmartStack.

As

is

seen,

the

SmartStack

module

does

not

include

a

controller

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