S29AL016M90BFIR10 View Datasheet(PDF) - Spansion Inc.

Part Name

Description

Manufacturer

S29AL016M90BFIR10

16 Megabit (2 M x 8-Bit/1 M x 16-Bit) 3.0 Volt-only Boot Sector Flash Memory featuring MirrorBit™ technology

Spansion Inc. 

START

PLSCNT = 1

RESET# = VID

Wait 1 ms

Temporary Sector

Unprotect Mode

No First Write

Cycle = 60h?

Yes

Set up sector

address

Sector Protect:

Write 60h to sector

address with

A6 = 0, A1 = 1,

A0 = 0

Wait 150 µs

Increment

PLSCNT

No

PLSCNT

= 25?

Yes

Device failed

Verify Sector

Protect: Write 40h

to sector address

with A6 = 0,

A1 = 1, A0 = 0

Read from

sector address

with A6 = 0,

A1 = 1, A0 = 0

Reset

PLSCNT = 1

No

Data = 01h?

Yes

Yes

Protect another

sector?

No

Remove VID

from RESET#

Write reset

command

In-System Single

High Voltage

Sector Protect

Algorithm

Sector Protect

complete

Protect all sectors:

The indicated portion

of the sector protect

algorithm must be

performed for all

unprotected sectors

prior to issuing the

first sector

unprotect address

Increment

PLSCNT

START

PLSCNT = 1

RESET# = VID

Wait 1 ms

First Write No Temporary Sector

Cycle = 60h?

Unprotect Mode

Yes

No All sectors

protected?

Yes

Set up first sector

address

Sector Unprotect:

Write 60h to sector

address with

A6 = 1, A1 = 1,

A0 = 0

Wait 15 ms

Verify Sector

Unprotect: Write

40h to sector

address with

A6 = 1, A1 = 1,

A0 = 0

No

PLSCNT

= 1000?

Yes

Read from

sector address

with A6 = 1,

A1 = 1, A0 = 0

No

Data = 00h?

Yes

Set up

next sector

address

Device failed

Last sector No

verified?

In-System Single

High Voltage

Sector Unprotect

Algorithm

Yes

Remove VID

from RESET#

Write reset

command

Sector Unprotect

complete

Figure 2. In-System Single High Voltage Sector Protect/Unprotect Algorithms

April 21, 2004 S29AL016M_00A4

S29AL016M

18

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